Chevy Vortec V-8 Gas Engine
Messages posted to discussion group:| Subject | Date |
| 2010-08-01 00:00:00.0 | |
| cb49crazy | 2010-07-28 00:00:00.0 |
| 7.4 litre vortec | 2010-05-17 00:00:00.0 |
| 2010-05-04 00:00:00.0 | |
| 2010-03-30 00:00:00.0 | |
| Joe 5.7 Vortec | 2009-12-26 00:00:00.0 |
| 2009-09-26 00:00:00.0 | |
| Steve T | 2009-09-15 00:00:00.0 |
| rdaggett39@yahoo.com | 2009-06-10 00:00:00.0 |
| 2009-05-16 00:00:00.0 | |
| 2009-02-14 00:00:00.0 | |
| jerry | 2009-01-09 00:00:00.0 |
| reb tlb1021@hotmail.com | 2008-12-21 00:00:00.0 |
| bkovacic67@yahoo.com | 2008-11-27 00:00:00.0 |
| Redneck92- biggest motor in a 89 chevy blazer | 2008-10-14 00:00:00.0 |
| lawrencevgibson@gmail.com | 2008-08-26 00:00:00.0 |
| 75dodge@live. com | 2008-07-25 00:00:00.0 |
| Gas passer .......Literally !! | 2008-07-22 00:00:00.0 |
| 2008-07-13 00:00:00.0 | |
| d.atkins97@yahoo.com | 2008-06-07 00:00:00.0 |
| chriscuchiara@yahoo.com | 2008-06-06 00:00:00.0 |
| doug macrobbie | 2008-05-31 00:00:00.0 |
| 2008-05-30 00:00:00.0 | |
| 2008-05-24 00:00:00.0 | |
| 2008-05-24 00:00:00.0 | |
| Canada | 2008-05-02 00:00:00.0 |
| carter | 2008-04-27 00:00:00.0 |
| southfarm | 2008-04-24 00:00:00.0 |
| Andrew | 2008-04-11 00:00:00.0 |
| 2008-04-08 00:00:00.0 | |
| *jclark | 2008-04-05 00:00:00.0 |
| mccscougar@aol.com | 2008-04-03 00:00:00.0 |
| 2008-03-24 00:00:00.0 | |
| dr_454 | 2008-03-15 00:00:00.0 |
| fhuse | 2008-03-12 00:00:00.0 |
| savage7237 | 2008-02-24 00:00:00.0 |
| 2008-02-24 00:00:00.0 | |
| 2008-02-21 00:00:00.0 | |
| wyopokes@live.com | 2008-02-11 00:00:00.0 |
| 2008-02-11 00:00:00.0 | |
| gram.pason@yahoo.com | 2008-02-11 00:00:00.0 |
| tom | 2008-01-19 00:00:00.0 |
| 2007-12-13 00:00:00.0 | |
| 2007-11-16 00:00:00.0 | |
| JIMBO- 1999 VORTEC 7.4 L POOR MPG, BLACK EXHAU ST | 2007-11-13 00:00:00.0 |
| tazchevy2@yahoo.com | 2007-10-20 00:00:00.0 |
| 2007-10-07 00:00:00.0 | |
| jheath 1995 Tahoe | 2007-09-21 00:00:00.0 |
| Coolant Overflow Jug | 2007-09-10 00:00:00.0 |
| madcitymsk | 2007-09-09 00:00:00.0 |
| 2007-07-29 00:00:00.0 | |
| Dale | 2007-07-13 00:00:00.0 |
| sargeaf@netins.net | 2006-01-31 07:21:53.0 |
| jeffery | 2006-01-30 15:22:06.0 |
| sargeaf | 2006-01-29 11:47:53.0 |
| GMCdaddy | 2006-01-25 20:05:25.0 |
| Armand | 2006-01-16 19:00:33.0 |
| gblair@hwequipment.com | 2006-01-15 12:45:20.0 |
| Randy in Vancouver | 2006-01-13 08:08:31.0 |
| To Mark from Ron | 2006-01-10 21:23:59.0 |
| Mark | 2006-01-08 20:29:26.0 |
| 2006-01-02 13:24:11.0 | |
| dallas in colorado springs co 1/1/06 | 2006-01-01 20:49:59.0 |
| Ron to Jeffrey | 2005-12-27 21:50:52.0 |
| jeffery.sanders@losangeles.af.mil | 2005-12-27 07:45:59.0 |
| HACK - SPARK FLASH OVER | 2005-12-23 02:35:25.0 |
| tmblweed | 2005-12-22 14:45:46.0 |
| gypsyhorses | 2005-12-20 01:24:04.0 |
| Ron to DEADENDKIDSWEST | 2005-12-15 17:18:10.0 |
| 2005-12-08 03:50:13.0 | |
| David | 2005-11-30 21:41:25.0 |
| David | 2005-11-30 21:40:14.0 |
| DEADENDKIDSWEST | 2005-11-25 00:12:10.0 |
| 2005-11-22 00:25:01.0 | |
| tnelthorpe@shaw.ca | 2005-11-14 19:16:26.0 |
| Kelly | 2005-11-11 15:39:15.0 |
| dave | 2005-11-05 11:28:51.0 |
| buttons021@optonline.net | 2005-10-29 13:27:56.0 |
| buttons021@optonline.net | 2005-10-29 13:26:44.0 |
| spmchazlett@yahoo.com | 2005-10-25 23:52:20.0 |
| mike | 2005-10-02 11:16:31.0 |
| Dennie | 2005-10-01 00:33:21.0 |
| Ron to Onick | 2005-09-29 06:41:51.0 |
| Ron to Onick | 2005-09-29 06:41:34.0 |
| TECH RAY B. | 2005-09-29 03:44:08.0 |
| vette4us@adelphia.net | 2005-09-26 06:59:31.0 |
| 2005-09-23 05:12:59.0 | |
| onick 'at' optonline dot net | 2005-09-20 02:49:10.0 |
| bammbamm409@hotmail.com | 2005-09-17 18:55:44.0 |
| pdawg | 2005-09-16 00:13:55.0 |
| 2005-09-13 05:17:29.0 | |
| Ron to North of Sixty | 2005-08-29 21:36:55.0 |
| North of Sixty | 2005-08-29 09:41:11.0 |
| Gary | 2005-08-27 19:01:36.0 |
| Gary | 2005-08-27 17:52:44.0 |
| Ron to MisfireMe | 2005-08-27 16:42:35.0 |
| Ron TO Misfire ME | 2005-08-27 16:14:06.0 |
| craig | 2005-08-23 05:52:27.0 |
| At our limit | 2005-08-22 22:04:40.0 |
| misfire me | 2005-08-19 16:02:42.0 |
| Dave to Ron | 2005-08-08 20:07:12.0 |
| 2005-07-30 20:32:43.0 | |
| hotrod in trouble | 2005-07-29 03:34:39.0 |
| robert howard | 2005-07-28 10:55:22.0 |
| 2005-07-28 06:17:22.0 | |
| Ron to JimB | 2005-07-23 23:33:59.0 |
| chevman84 | 2005-07-21 10:25:32.0 |
| JimB | 2005-07-17 18:18:37.0 |
| no power when i go to accelerate p1345 code on 97 | 2005-07-14 23:11:30.0 |
| 2005-07-13 17:10:20.0 | |
| roboroofer | 2005-07-13 08:23:08.0 |
| case emke | 2005-07-11 20:26:52.0 |
| Crunch Time | 2005-07-10 08:08:27.0 |
| Ron to Lizard | 2005-07-09 21:29:26.0 |
| Ron to Liz | 2005-07-09 08:48:04.0 |
| bobby | 2005-07-05 14:03:18.0 |
| Lizard needs help | 2005-06-29 18:56:41.0 |
| Lizard needs help | 2005-06-29 18:55:04.0 |
| Ron to Chris | 2005-06-28 12:32:26.0 |
| chris | 2005-06-28 03:53:36.0 |
| chevman84 | 2005-06-23 06:30:28.0 |
| Ron to Kly | 2005-06-20 04:50:58.0 |
| vortectrucker to Ron | 2005-06-19 18:18:00.0 |
| ed edson | 2005-06-18 17:40:17.0 |
| klystron59 | 2005-06-18 17:16:28.0 |
| Ron to Mark | 2005-06-18 11:45:43.0 |
| klystron59 | 2005-06-17 21:08:22.0 |
| Ron to BHavil | 2005-06-17 00:20:08.0 |
| bhavil2581@yahoo.com | 2005-06-16 16:01:44.0 |
| Ron to vortectrucker | 2005-06-15 08:08:22.0 |
| vortectrucker@yahoo.com | 2005-06-14 18:35:04.0 |
| vortectrucker@yahoo.com | 2005-06-14 18:29:02.0 |
| Ron | 2005-06-14 09:55:29.0 |
| wjb36 | 2005-06-12 06:26:19.0 |
| klystron59 | 2005-06-11 21:06:31.0 |
| klystron59 | 2005-06-11 21:06:17.0 |
| Ron to all | 2005-06-11 18:25:22.0 |
| Ron to Dave | 2005-06-11 18:19:43.0 |
| Ron and others | 2005-06-08 20:37:51.0 |
| Dave to Ron | 2005-06-08 20:31:12.0 |
| Ron to Low | 2005-06-04 23:30:37.0 |
| low oil pressure | 2005-06-04 19:30:33.0 |
| low oil pressure | 2005-06-04 19:25:22.0 |
| chevman84 | 2005-06-01 12:04:37.0 |
| chevyman84 | 2005-06-01 09:28:14.0 |
| chevman84 | 2005-05-31 10:35:35.0 |
| Ron to Steve | 2005-05-28 18:51:25.0 |
| oscar the goodguy | 2005-05-28 12:01:54.0 |
| stevefurby94@hotmail.com | 2005-05-27 12:53:50.0 |
| stevefurby94@hotmail.com | 2005-05-27 12:53:21.0 |
| 2005-05-25 09:00:18.0 | |
| Larry | 2005-05-25 05:19:24.0 |
| Ron | 2005-05-22 15:14:56.0 |
| Dave to Ron | 2005-05-20 14:05:21.0 |
| 2005-05-18 14:43:27.0 | |
| Dave to Ron | 2005-05-18 07:41:41.0 |
| SJ | 2005-05-16 18:45:52.0 |
| 2005-05-16 07:56:29.0 | |
| jonathon | 2005-05-15 14:28:09.0 |
| 2005-05-14 20:38:03.0 | |
| Ron to Dave | 2005-05-10 09:34:08.0 |
| Dave D. | 2005-05-07 16:12:14.0 |
| Hi, guys. | 2005-05-07 15:55:50.0 |
| mech.matt | 2005-05-05 18:22:09.0 |
| Shawn | 2005-05-04 16:04:43.0 |
| 2005-04-30 19:58:08.0 | |
| Ron | 2005-04-30 19:54:42.0 |
| jeremiahrabe@hotmail.com | 2005-04-27 19:58:49.0 |
| votec V8 rough idle & misfire | 2005-04-26 15:36:49.0 |
| votec responce | 2005-04-26 15:17:57.0 |
| chevman84 | 2005-04-26 07:10:54.0 |
| 98 chev silverado | 2005-04-24 13:36:18.0 |
| 2005-04-20 19:04:08.0 | |
| max00711@yahoo.com | 2005-04-20 08:55:32.0 |
| ex-ford | 2005-04-03 16:39:13.0 |
| i need help | 2005-04-01 07:06:36.0 |
| chevman84 | 2005-03-30 09:49:14.0 |
| chevman84 | 2005-03-29 06:58:52.0 |
| hotrodder a hudson.net | 2005-03-27 06:48:29.0 |
| 2005-03-25 16:06:11.0 | |
| Ron TO Jenny | 2005-03-25 12:01:38.0 |
| 128KINse | 2005-03-22 21:27:38.0 |
| power-restored | 2005-03-22 21:05:49.0 |
| 128KinSE | 2005-03-18 20:16:33.0 |
| 115KinSE | 2005-03-16 18:58:09.0 |
| 2005-03-14 20:43:45.0 | |
| Ron | 2005-03-13 10:02:00.0 |
| David H | 2005-03-10 06:52:41.0 |
| t_manatu@yahoo.com | 2005-03-04 12:16:22.0 |
| t_manatu@yahoo.com | 2005-03-04 11:55:02.0 |
| 2005-03-03 22:08:50.0 | |
| desperate 4 help | 2005-03-03 21:49:11.0 |
| desperate 4 help | 2005-03-03 17:55:26.0 |
| 2005-03-02 07:59:51.0 | |
| Bob | 2005-03-02 05:36:38.0 |
| Bob | 2005-03-02 05:35:56.0 |
| Ron | 2005-03-01 07:45:52.0 |
| Bob in Klamath Falls | 2005-02-28 06:56:26.0 |
| MJP | 2005-02-25 08:22:06.0 |
| Ron | 2005-02-24 19:36:24.0 |
| mjp | 2005-02-24 08:36:20.0 |
| Ron | 2005-02-22 22:33:20.0 |
| sitko308@alltel.net | 2005-02-21 06:55:27.0 |
| Ron | 2005-02-20 21:13:30.0 |
| mjp | 2005-02-20 18:13:30.0 |
| Ron | 2005-02-20 11:05:29.0 |
| Ron | 2005-02-20 11:03:59.0 |
| Gary | 2005-02-19 15:22:55.0 |
| 2005-02-19 07:53:01.0 | |
| Ron to Rick | 2005-02-17 20:20:09.0 |
| check engine light | 2005-02-17 12:20:20.0 |
| check engine light | 2005-02-17 12:17:47.0 |
| Rick | 2005-02-16 19:21:56.0 |
| Joe | 2005-02-16 07:47:12.0 |
| Ron | 2005-02-15 20:09:25.0 |
| jamie | 2005-02-14 14:15:05.0 |
| Greydead | 2005-02-13 21:25:30.0 |
| Andrew Douglas | 2005-02-10 17:22:10.0 |
| ccdc82403@aol.com | 2005-02-10 13:08:08.0 |
| 2005-02-09 12:13:49.0 | |
| trble_57 | 2005-02-08 06:41:16.0 |
| Ron to Al | 2005-02-07 23:21:02.0 |
| Jenny | 2005-02-06 20:08:57.0 |
| GMC man | 2005-02-06 16:19:00.0 |
| Walter - wrwelton@hotmail.com | 2005-02-05 13:59:53.0 |
| boatman | 2005-02-04 20:49:23.0 |
| BURB241 | 2005-02-03 14:28:46.0 |
| chevman84 | 2005-02-03 11:51:36.0 |
| Al Schulz | 2005-01-31 16:49:25.0 |
| 2005-01-31 04:15:21.0 | |
| Ron | 2005-01-30 20:16:25.0 |
| Al Schulz | 2005-01-30 12:44:05.0 |
| Paul | 2005-01-28 17:45:44.0 |
| crew cab | 2005-01-28 13:33:23.0 |
| 2000 crew cab 7.4 | 2005-01-28 09:22:10.0 |
| To Scott | 2005-01-27 13:10:53.0 |
| P Spisak | 2005-01-27 13:04:44.0 |
| Big Block | 2005-01-25 16:12:56.0 |
| alschulz@ez-net.com | 2005-01-23 09:15:00.0 |
| deandog | 2005-01-19 19:02:51.0 |
| marreo64@yahoo | 2005-01-19 07:30:07.0 |
| foutz_7076@hotmail.com | 2005-01-18 13:25:11.0 |
| chevman84 | 2005-01-18 13:11:12.0 |
| Dave | 2005-01-18 04:46:47.0 |
| Ron to Larry | 2005-01-13 20:40:00.0 |
| larry@liquidfit.com | 2005-01-13 19:17:48.0 |
| Ron | 2005-01-08 23:34:05.0 |
| Bogi | 2005-01-08 22:41:22.0 |
| Bogi | 2005-01-08 22:34:52.0 |
| wwwdonsdad07.com | 2005-01-08 21:01:58.0 |
| Caleb in Texas | 2005-01-07 16:30:27.0 |
| Ron | 2005-01-07 12:56:40.0 |
| Scott | 2005-01-07 05:58:02.0 |
| 5.0 Vortec | 2005-01-06 13:31:18.0 |
| matt | 2005-01-06 07:06:45.0 |
| jlbrad | 2005-01-05 09:34:37.0 |
| chevman84 | 2005-01-04 10:17:22.0 |
| chevman84 | 2005-01-04 10:17:16.0 |
| Caleb in Texas | 2005-01-02 21:23:15.0 |
| kyfarmer | 2005-01-02 16:36:11.0 |
| racolanti@snet.net | 2004-12-29 19:14:12.0 |
| Ron (reply to Stranger) | 2004-12-28 07:35:51.0 |
| golfar@telus,net | 2004-12-27 11:16:29.0 |
| 2004-12-24 08:53:47.0 | |
| sranger@shaw.ca | 2004-12-23 12:12:14.0 |
| MY PROBLEMS | 2004-12-22 09:42:16.0 |
| krazy mo | 2004-12-20 18:40:03.0 |
| 2004-12-20 18:32:25.0 | |
| Tim | 2004-12-20 06:52:08.0 |
| 2004-12-19 11:04:20.0 | |
| 2004-12-18 19:43:47.0 | |
| rdawson1@ns.sympatico.ca | 2004-12-18 19:11:05.0 |
| Matt | 2004-12-17 18:03:27.0 |
| krazy mo | 2004-12-17 14:12:15.0 |
| krazy mo | 2004-12-17 13:23:01.0 |
| Ron | 2004-12-17 08:19:22.0 |
| mike | 2004-12-16 23:12:41.0 |
| krazy mo | 2004-12-15 17:53:25.0 |
| 2004-12-15 08:08:47.0 | |
| chevman84 | 2004-12-15 08:06:09.0 |
| wjb36@bellsouth.net | 2004-12-15 07:33:43.0 |
| wjb36@bellsouth.net | 2004-12-15 07:27:50.0 |
| wjb36@bellsouth.net | 2004-12-15 07:26:50.0 |
| alabamacwboy | 2004-12-14 20:43:33.0 |
| krazy mo | 2004-12-14 18:39:06.0 |
| 2004-12-14 18:33:45.0 | |
| 2004-12-14 18:27:10.0 | |
| Randy | 2004-12-13 12:00:02.0 |
| chris | 2004-12-11 10:49:33.0 |
| Ron | 2004-12-09 19:18:20.0 |
| melvin | 2004-12-09 05:29:14.0 |
| Ron | 2004-12-09 01:45:56.0 |
| chevman84@msn.com | 2004-12-08 18:01:31.0 |
| 2004-12-08 12:53:29.0 | |
| Robert G. | 2004-12-08 12:52:30.0 |
| melving@landau.com | 2004-12-08 09:16:50.0 |
| ED. in va | 2004-12-07 04:04:53.0 |
| Shali Brown | 2004-12-06 14:18:33.0 |
| James T | 2004-12-04 16:47:46.0 |
| James T | 2004-12-04 16:47:33.0 |
| James T | 2004-12-04 16:44:43.0 |
| James T | 2004-12-04 16:43:45.0 |
| James T | 2004-12-04 16:18:02.0 |
| 2004-12-02 15:13:01.0 | |
| 2004-12-02 15:11:00.0 | |
| 2004-12-02 15:10:47.0 | |
| crazy mofo | 2004-12-02 11:04:18.0 |
| 2004-12-02 11:02:15.0 | |
| 2004-12-02 09:48:50.0 | |
| Derwood | 2004-12-01 18:22:02.0 |
| 2004-12-01 18:15:45.0 | |
| mart003@comcast.net | 2004-12-01 15:21:19.0 |
| Chris | 2004-12-01 14:07:43.0 |
| chris | 2004-12-01 13:58:48.0 |
| Chris | 2004-12-01 13:53:50.0 |
| 2004-11-29 20:04:57.0 | |
| Derwood | 2004-11-29 19:52:08.0 |
| 2004-11-29 19:45:11.0 | |
| crazy mofo "heartshapedbox32@hotmail.com" | 2004-11-29 19:42:35.0 |
| derwood | 2004-11-29 19:40:41.0 |
| 2004-11-29 19:36:28.0 | |
| Ron to little riley | 2004-11-28 23:28:58.0 |
| mwright@horizonview.net | 2004-11-28 15:07:40.0 |
| littleriley@bellsouth.net | 2004-11-28 12:24:33.0 |
| 2500HD 6.0 intake mods rjoraw@northerntel.net | 2004-11-28 09:19:12.0 |
| chevyman127us@yahoo.com | 2004-11-27 19:07:53.0 |
| Ron to Rich | 2004-11-24 12:38:39.0 |
| Workhorse Rich | 2004-11-21 17:52:08.0 |
| Ron to Girl with truck | 2004-11-20 15:00:29.0 |
| girl with truck | 2004-11-20 10:50:22.0 |
| Ron to Girl with truck | 2004-11-20 08:34:10.0 |
| get-r-done72801 | 2004-11-19 22:15:42.0 |
| 96tahoe | 2004-11-19 11:05:58.0 |
| 96TAHOE | 2004-11-19 10:56:24.0 |
| kenny | 2004-11-19 10:27:02.0 |
| Dave In mich.(dnafedewa@msn.com) | 2004-11-19 08:28:30.0 |
| vncyng@yahoo.com | 2004-11-18 17:41:26.0 |
| girl with truck | 2004-11-18 17:23:56.0 |
| girl with truck | 2004-11-18 17:12:40.0 |
| vncyng@yahoo.com | 2004-11-18 17:10:22.0 |
| Ron to engine fire | 2004-11-18 17:09:13.0 |
| engine fire | 2004-11-18 13:01:11.0 |
| 96TAHOE | 2004-11-18 08:29:38.0 |
| girl with truck | 2004-11-17 21:10:43.0 |
| Ron to Dan L | 2004-11-16 06:53:21.0 |
| Dan L. in Calif. | 2004-11-16 02:59:37.0 |
| Billgeorge15@hotmail.com | 2004-11-15 17:07:46.0 |
| 99 chevy | 2004-11-13 17:32:53.0 |
| 2004-11-12 11:28:59.0 | |
| 2004-11-10 15:51:43.0 | |
| 96TAHOE | 2004-11-10 13:22:01.0 |
| wjb36@bellsouth.net | 2004-11-09 12:15:48.0 |
| dollingertt@cox.net | 2004-11-08 19:03:56.0 |
| vortec "knock issue" | 2004-11-08 18:41:12.0 |
| Tim Calif | 2004-11-08 14:48:32.0 |
| daryl | 2004-11-06 21:21:48.0 |
| Ron | 2004-11-06 18:40:21.0 |
| Erick | 2004-11-04 20:43:44.0 |
| Erick | 2004-11-04 20:43:17.0 |
| don | 2004-11-04 07:06:21.0 |
| Problem | 2004-11-02 09:50:46.0 |
| Ron | 2004-10-31 20:10:29.0 |
| brasilmichaele@sbcglobal.net | 2004-10-31 17:51:34.0 |
| Ron H | 2004-10-31 11:40:21.0 |
| Ron | 2004-10-30 22:40:58.0 |
| mycoldfeet | 2004-10-30 20:13:48.0 |
| Ron to DEAN | 2004-10-30 19:13:28.0 |
| andre | 2004-10-29 19:42:13.0 |
| elmer | 2004-10-29 19:13:49.0 |
| mr. gdw | 2004-10-29 15:26:18.0 |
| mr goodwrench | 2004-10-29 04:59:46.0 |
| dneuf2@hotmail.com | 2004-10-28 21:35:05.0 |
| troylgraham@sbcglobal.net | 2004-10-27 21:48:01.0 |
| Ron to PTerrill | 2004-10-27 12:16:10.0 |
| TAHOE MAN | 2004-10-26 12:48:43.0 |
| GS | 2004-10-26 05:28:55.0 |
| pterrill@socket.net | 2004-10-25 17:00:47.0 |
| pterrill | 2004-10-25 15:51:09.0 |
| Peter SA | 2004-10-25 10:06:10.0 |
| mowrys@multiband.tv | 2004-10-24 19:46:02.0 |
| mowrys@multiband.tv | 2004-10-24 19:43:28.0 |
| snatchsmeller | 2004-10-23 19:55:35.0 |
| RDY4WAR | 2004-10-23 14:48:49.0 |
| BEATTHEHELLOUTOFIT | 2004-10-21 15:50:23.0 |
| Ron (reply to John re: firing order) | 2004-10-16 21:18:37.0 |
| John | 2004-10-15 10:46:04.0 |
| rdub89 | 2004-10-14 18:06:20.0 |
| Ron (reply to MikeP) | 2004-10-14 10:15:20.0 |
| mikep@plano.gov | 2004-10-13 09:58:27.0 |
| 2004-10-13 09:34:33.0 | |
| red z71 | 2004-10-12 19:37:22.0 |
| Ron | 2004-10-11 21:04:33.0 |
| knock,knock,raddle,raddle,we hear it 2 miles away. | 2004-10-11 18:27:22.0 |
| shawn | 2004-10-11 18:16:58.0 |
| 2004-10-11 15:34:24.0 | |
| Bill | 2004-10-11 06:54:03.0 |
| gilltowner | 2004-10-10 18:47:26.0 |
| Ron | 2004-10-09 20:56:23.0 |
| bigdaddy | 2004-10-08 19:30:13.0 |
| 200,000 miles | 2004-10-06 18:47:19.0 |
| mario in Hawaii | 2004-10-05 16:41:03.0 |
| Changing Oil Pump - Have you been there? | 2004-10-05 12:42:17.0 |
| Frustrated | 2004-10-04 11:46:59.0 |
| sarah | 2004-10-03 22:10:25.0 |
| mike in atlanta | 2004-10-02 19:45:04.0 |
| crutchy@verizon.net | 2004-10-01 09:51:21.0 |
| Roy Rivera | 2004-10-01 08:55:22.0 |
| marvp | 2004-09-28 07:12:36.0 |
| marvp | 2004-09-28 07:09:14.0 |
| ron harvey | 2004-09-27 17:12:15.0 |
| jtaguer@dbnj.com | 2004-09-27 09:17:03.0 |
| 2wd in alaska | 2004-09-26 13:31:54.0 |
| stephy and edward | 2004-09-26 12:42:22.0 |
| wcpenrod@yahoo.com | 2004-09-25 21:23:13.0 |
| 2004-09-25 00:37:55.0 | |
| shad754 | 2004-09-23 08:18:23.0 |
| drhooklures@yahoo.com | 2004-09-20 21:46:48.0 |
| noisy fuel pump on a 1998 GMC with 5.7 liter | 2004-09-18 15:01:29.0 |
| johnsonrosanne@shaw.ca | 2004-09-14 15:00:58.0 |
| 2004-09-14 00:15:07.0 | |
| blown away | 2004-09-14 00:06:58.0 |
| blown away | 2004-09-14 00:00:57.0 |
| ssbc@gci.net | 2004-09-13 23:56:31.0 |
| 2002 2500HD 6.0L | 2004-09-13 19:11:39.0 |
| thinus | 2004-09-13 11:23:48.0 |
| CHEVY CEO | 2004-09-13 09:53:17.0 |
| Narada Jerry | 2004-09-13 07:58:10.0 |
| disgrunteled vortec owner | 2004-09-12 12:07:28.0 |
| Ron | 2004-09-12 11:09:32.0 |
| kgranata@lancastercountysc.net | 2004-09-12 10:44:16.0 |
| E67caminolan in minnesota | 2004-09-11 11:28:13.0 |
| JOYCE IN SAN ANTONIO | 2004-09-09 20:09:42.0 |
| Walter | 2004-09-09 00:50:30.0 |
| KNOCK AND HAMMER | 2004-09-07 13:34:42.0 |
| mark | 2004-09-06 16:35:15.0 |
| 2004-09-06 13:50:46.0 | |
| claleff@cox.net (jamie) | 2004-09-05 11:27:23.0 |
| Montana4x4 | 2004-09-04 13:49:16.0 |
| Justin | 2004-09-04 05:46:25.0 |
| James | 2004-09-01 16:34:42.0 |
| Ron | 2004-08-31 23:14:39.0 |
| nevergrownup@hotmail.com | 2004-08-31 04:05:04.0 |
| steve | 2004-08-30 19:02:17.0 |
| royd | 2004-08-30 17:24:42.0 |
| rdawson1@ns.sympatico.ca | 2004-08-30 17:12:00.0 |
| lnc125@yahoo.com | 2004-08-29 13:16:18.0 |
| Ron (ethanol may damage aluminum manifolds) | 2004-08-28 10:05:14.0 |
| BillyD | 2004-08-27 10:13:52.0 |
| more gas mileage u need?>?? | 2004-08-26 22:54:00.0 |
| rarestjewel | 2004-08-26 21:45:48.0 |
| Evilgrizzman | 2004-08-25 01:14:10.0 |
| gutendirt | 2004-08-21 19:20:04.0 |
| dallas yukon | 2004-08-15 19:18:40.0 |
| ray | 2004-08-13 16:31:35.0 |
| DU | 2004-08-13 11:24:52.0 |
| khotxay@sbcglobal.net | 2004-08-13 07:18:23.0 |
| Ron | 2004-08-09 18:18:38.0 |
| vibration | 2004-08-09 13:07:25.0 |
| H2 DAVE | 2004-07-30 13:26:02.0 |
| TO ammedhassan | 2004-07-21 10:52:36.0 |
| Ron | 2004-07-20 21:14:08.0 |
| 2004-07-20 17:12:13.0 | |
| 2004-07-20 13:46:27.0 | |
| ammedhassan@hotmail.com | 2004-07-20 13:26:43.0 |
| NEVER TAKE YOUR VEHICLE TO JUST BRAKES | 2004-07-20 08:05:05.0 |
| Joe | 2004-07-19 02:58:25.0 |
| Ron to 115KinSE | 2004-07-17 02:08:08.0 |
| 1997 yukon | 2004-07-15 17:39:49.0 |
| 115KinSE | 2004-07-14 19:33:02.0 |
| Michael | 2004-07-11 18:01:13.0 |
| Michael | 2004-07-11 17:52:54.0 |
| Ron | 2004-07-11 13:59:26.0 |
| Ron | 2004-07-11 13:50:15.0 |
| BOOTCAMP | 2004-07-11 09:04:26.0 |
| Mike in Indiana | 2004-07-11 07:38:08.0 |
| Ron | 2004-07-10 22:42:03.0 |
| Ron | 2004-07-10 22:37:17.0 |
| Ron | 2004-07-10 22:26:29.0 |
| Ron | 2004-07-10 22:14:30.0 |
| Hobbsy | 2004-07-08 08:05:04.0 |
| Alan | 2004-07-07 19:51:47.0 |
| awdtsis@hotmail.com | 2004-07-07 17:51:44.0 |
| Michael | 2004-07-07 00:46:27.0 |
| daniel | 2004-07-06 23:57:57.0 |
| Ron | 2004-07-06 21:59:53.0 |
| Ron | 2004-07-06 21:54:41.0 |
| BRAKES | 2004-07-06 06:47:53.0 |
| Dale | 2004-07-04 11:25:17.0 |
| Dale, a million dollar 96 GMC Suburban w/350 owner | 2004-07-04 11:04:47.0 |
| Ken | 2004-06-25 06:16:01.0 |
| 2004-06-24 10:23:59.0 | |
| Deez Nuts | 2004-06-23 11:44:52.0 |
| Dave O | 2004-06-22 22:19:08.0 |
| 2004-06-20 14:20:49.0 | |
| jackdanielsmc@aol.com | 2004-06-19 22:02:08.0 |
| thePOTZ | 2004-06-15 22:39:42.0 |
| Mike | 2004-06-14 18:56:12.0 |
| 2004-06-12 17:39:42.0 | |
| Randy | 2004-06-03 20:38:27.0 |
| chris073 | 2004-05-28 21:32:19.0 |
| garyd1286@aol.com | 2004-05-28 20:01:44.0 |
| noisy mornings | 2004-05-28 09:05:47.0 |
| rdawson1@ns.sympatico.ca | 2004-05-25 18:32:48.0 |
| Ron.... | 2004-05-20 21:30:02.0 |
| rlcrisner2@aol.com how to find if a re-call | 2004-05-19 05:22:42.0 |
| rlcrisner2@aol.com | 2004-05-19 05:20:16.0 |
| randy41@juno.com | 2004-05-16 20:52:48.0 |
| 2004-05-15 17:36:11.0 | |
| 2004-05-15 17:35:51.0 | |
| Ron | 2004-05-14 19:33:06.0 |
| 115KinSE | 2004-05-13 23:37:30.0 |
| WHERE THE CAMARO'S? | 2004-05-13 09:35:13.0 |
| mark.wansing@us.army.mil | 2004-05-12 23:17:07.0 |
| Booradley | 2004-05-05 08:27:35.0 |
| lulu | 2004-05-04 22:04:06.0 |
| Ron | 2004-05-04 13:01:29.0 |
| Booradley | 2004-05-04 11:44:02.0 |
| Booradley | 2004-05-04 09:14:59.0 |
| Marcus L. | 2004-05-04 08:12:44.0 |
| DB | 2004-05-03 17:53:04.0 |
| 2004-05-02 17:06:11.0 | |
| royal screwing | 2004-05-01 23:24:54.0 |
| Tom | 2004-04-30 20:50:07.0 |
| jmr3891@aol.com | 2004-04-28 23:34:40.0 |
| txbirdblaster@yahoo.com | 2004-04-27 20:40:41.0 |
| txbirdblaster@yahoo.com | 2004-04-27 20:39:11.0 |
| cweiser@rcsmillwork.com | 2004-04-27 08:12:56.0 |
| Drew | 2004-04-26 19:53:43.0 |
| Power S & B | 2004-04-26 18:41:45.0 |
| brialkev@wyoming.com | 2004-04-25 20:32:52.0 |
| SCREW BY G. M. | 2004-04-24 00:19:50.0 |
| Ron | 2004-04-23 21:54:40.0 |
| Drew , Soldat642@aol.com | 2004-04-23 15:58:28.0 |
| dplowman57@aol.com | 2004-04-22 22:15:16.0 |
| classic015@aol.com | 2004-04-22 21:29:17.0 |
| 2004-04-22 17:26:01.0 | |
| David 01YukonXL | 2004-04-22 12:12:50.0 |
| 2004-04-21 18:27:35.0 | |
| Ron | 2004-04-21 10:17:33.0 |
| David 01YukonXL | 2004-04-21 08:17:18.0 |
| 2004-04-19 18:53:11.0 | |
| 2004-04-19 18:41:28.0 | |
| daniel scriven po box 92 ripley ny 14775 | 2004-04-19 18:35:06.0 |
| daniel scriven po box 92 ripley ny 14775 | 2004-04-19 18:34:01.0 |
| 2004-04-19 10:32:22.0 | |
| TAHOE MAN | 2004-04-19 06:22:24.0 |
| sprattfamily4@yahoo.com | 2004-04-18 15:44:10.0 |
| 2004-04-17 09:10:22.0 | |
| sdfg | 2004-04-16 21:18:41.0 |
| RonB (in Toronto Canada) | 2004-04-16 13:31:21.0 |
| RonB (in Toronto Canada) | 2004-04-16 13:31:09.0 |
| RonB (in Toronto Canada) | 2004-04-16 13:31:01.0 |
| RonB (in Toronto Canada) | 2004-04-16 13:30:53.0 |
| RonB |
2004-04-15 21:30:41.0 |
| CHRISinSA | 2004-04-15 17:42:40.0 |
| jbarnes@ideafamilies.org | 2004-04-13 23:10:07.0 |
| TAHOE MAN | 2004-04-13 09:06:23.0 |
| joe_zrt@hotmail.com | 2004-04-10 11:48:16.0 |
| djlimbau@aol.com | 2004-04-08 18:30:49.0 |
| Jeremy in bham | 2004-04-07 22:50:09.0 |
| rchumpert@aol.com | 2004-04-07 19:37:41.0 |
| TAHOE MAN | 2004-04-07 07:13:33.0 |
| Wont start after replacing the water pump | 2004-04-07 05:38:44.0 |
| mcnair11@bellsouth.net | 2004-04-06 11:23:43.0 |
| philly | 2004-04-05 12:07:51.0 |
| Mcnair11@bellsouth.net | 2004-04-03 15:17:53.0 |
| W.HARTMAN@INSIGHTBB.COM | 2004-04-01 13:50:17.0 |
| W.HARTMAN@INSIGHTBB.COM | 2004-04-01 13:44:53.0 |
| smbrink@swbell.net | 2004-03-31 20:14:29.0 |
| 2004-03-31 17:49:29.0 | |
| smbrink@swbell.net | 2004-03-29 14:42:31.0 |
| rchumpert@aol.com | 2004-03-28 11:44:31.0 |
| msmitchellmary@yahoo.com | 2004-03-26 19:04:43.0 |
| nomo'rocks | 2004-03-24 18:53:47.0 |
| BEERZ168 | 2004-03-24 13:08:08.0 |
| Howard in Oz....hquick@bigpond.com | 2004-03-23 00:04:55.0 |
| eerobles@mmm.com | 2004-03-19 18:18:19.0 |
| ChrisK@fullmoonventures.com | 2004-03-18 13:37:48.0 |
| itchybees@yahoo.com | 2004-03-17 22:39:10.0 |
| 2004-03-17 19:32:00.0 | |
| 2004-03-17 12:40:35.0 | |
| 2004-03-16 18:25:41.0 | |
| Mwsun78 | 2004-03-16 01:23:17.0 |
| Big Daddy | 2004-03-15 18:01:43.0 |
| ART | 2004-03-15 17:41:53.0 |
| Melanie | 2004-03-11 12:16:37.0 |
| Wade | 2004-03-09 15:15:53.0 |
| banjotruckin@yahoo.com | 2004-03-08 20:07:11.0 |
| 2004-03-07 21:12:02.0 | |
| ray | 2004-03-07 21:09:12.0 |
| cody | 2004-03-01 20:03:22.0 |
| houndman | 2004-02-28 12:32:40.0 |
| houndman | 2004-02-28 08:11:21.0 |
| Ray in Florida | 2004-02-27 12:33:46.0 |
| GWRcutter@cs.com | 2004-02-25 15:28:17.0 |
| Jerry in Michigan 8100 Vortec | 2004-02-25 14:59:05.0 |
| 4X4 | 2004-02-24 18:03:36.0 |
| 2004-02-24 14:49:12.0 | |
| jeff | 2004-02-23 15:57:34.0 |
| billreaves@charter.net | 2004-02-23 12:02:19.0 |
| jake | 2004-02-22 17:22:59.0 |
| jake | 2004-02-22 17:20:54.0 |
| jake | 2004-02-22 17:11:27.0 |
| daz3@comcast.net | 2004-02-20 13:11:27.0 |
| Dan | 2004-02-19 15:50:15.0 |
| TAHOEMAN | 2004-02-19 10:06:04.0 |
| KevinChat1@aol.com | 2004-02-18 00:05:53.0 |
| Billreaves@charter.net | 2004-02-17 23:39:08.0 |
| BIW | 2004-02-17 20:52:37.0 |
| 2004-02-17 18:06:34.0 | |
| allis bitch | 2004-02-17 16:25:54.0 |
| Joe Rouhani | 2004-02-16 09:55:32.0 |
| Phil | 2004-02-14 06:48:46.0 |
| Red Eye | 2004-02-13 20:36:36.0 |
| ron.raley@comcast.net | 2004-02-13 12:23:03.0 |
| 96 TAHOE | 2004-02-13 07:24:51.0 |
| old man chevy | 2004-02-12 21:40:49.0 |
| Silverado | 2004-02-12 20:42:57.0 |
| Brian in Wichita | 2004-02-12 19:28:10.0 |
| ExclusiveElement | 2004-02-11 21:51:06.0 |
| Dan | 2004-02-11 19:40:49.0 |
| old man chevy | 2004-02-11 17:37:55.0 |
| racefan8@dalejr.net | 2004-02-10 17:59:51.0 |
| preshback@aol.com | 2004-02-09 18:48:49.0 |
| Dan | 2004-02-09 17:36:23.0 |
| Dan | 2004-02-09 17:26:07.0 |
| big truck | 2004-02-09 11:07:39.0 |
| tonytootimes@yahoo.com | 2004-02-08 07:02:06.0 |
| ex-chevy | 2004-02-06 15:52:12.0 |
| pdawg | 2004-02-03 17:53:56.0 |
| Bowtie brigade | 2004-02-01 20:39:33.0 |
| Dirty Sam | 2004-01-31 19:45:58.0 |
| Armyssg64@aol.com | 2004-01-31 19:19:38.0 |
| Dan | 2004-01-31 13:23:00.0 |
| Dan | 2004-01-31 13:03:16.0 |
| 2004-01-31 07:12:08.0 | |
| Dan | 2004-01-30 21:51:15.0 |
| armyssg64@aol.com | 2004-01-30 17:37:52.0 |
| Dirty Sam | 2004-01-30 15:04:58.0 |
| Armyssg64@aol.com | 2004-01-30 08:59:55.0 |
| Big Al | 2004-01-29 17:34:35.0 |
| Mechanic - Mike | 2004-01-29 10:12:02.0 |
| joe in cali. fuel in computor bad injecter | 2004-01-27 20:43:42.0 |
| timothy.folsom@dot.state.fl.us | 2004-01-27 12:16:40.0 |
| 2004-01-22 11:04:39.0 | |
| Dan | 2004-01-22 10:52:53.0 |
| TAHOE MAN | 2004-01-22 09:36:58.0 |
| Dan | 2004-01-20 08:46:46.0 |
| Scott | 2004-01-14 17:37:34.0 |
| Billy | 2004-01-13 02:49:34.0 |
| JOSH G | 2004-01-13 01:51:43.0 |
| Josh G | 2004-01-13 01:39:59.0 |
| 2004-01-11 19:26:10.0 | |
| whiskey | 2004-01-10 13:47:43.0 |
| whiskey | 2004-01-08 23:56:42.0 |
| Spankmoo | 2004-01-06 08:08:19.0 |
| marcus avis | 2004-01-05 09:07:25.0 |
| buzz | 2004-01-03 13:42:22.0 |
| mluongo@nycap.rr.com | 2004-01-02 15:26:02.0 |
| marcus avis mavis607@aol.com | 2004-01-01 07:48:17.0 |
| V8 | 2003-12-23 09:35:36.0 |
| stevied@simflex.com | 2003-12-21 17:00:32.0 |
| kla0817@wm.connect.com | 2003-12-17 20:36:07.0 |
| aw, man! I just bought this thing!!!! | 2003-12-13 19:52:33.0 |
| 96 HOE | 2003-12-11 10:00:38.0 |
| ImaNetSerfur@aol.com | 2003-12-11 03:07:52.0 |
| a confused chevy owner | 2003-12-10 23:10:04.0 |
| kstorm01 | 2003-12-09 18:15:29.0 |
| gerd@beckmann.com | 2003-12-07 15:02:58.0 |
| DallasTruck | 2003-12-06 21:01:29.0 |
| TAHOE MAN | 2003-12-05 12:20:54.0 |
| RBAWSI@AOL.Com. | 2003-12-03 17:16:45.0 |
| bignigchev | 2003-12-03 15:15:32.0 |
| Nathan | 2003-12-03 13:21:47.0 |
| dkwkid | 2003-12-02 12:59:16.0 |
| bignigchev | 2003-11-30 17:19:22.0 |
| kapico | 2003-11-28 07:58:46.0 |
| b.w.g. | 2003-11-24 16:54:29.0 |
| fatboy | 2003-11-23 21:03:02.0 |
| bwg | 2003-11-23 14:02:34.0 |
| Frank | 2003-11-21 20:19:51.0 |
| Frank | 2003-11-21 20:04:37.0 |
| 2003-11-21 13:39:50.0 | |
| Frank Glover | 2003-11-20 20:35:03.0 |
| b.w.g | 2003-11-20 17:06:40.0 |
| john mcgue | 2003-11-20 07:46:14.0 |
| Chev owner | 2003-11-20 06:43:33.0 |
| Frank Glover | 2003-11-19 20:17:34.0 |
| dogmoo@hotmail.com | 2003-11-18 20:26:49.0 |
| mtankmaster1@aol.com | 2003-11-18 06:37:32.0 |
| bird hunter | 2003-11-17 08:53:22.0 |
| bird hunter | 2003-11-17 08:39:32.0 |
| bird hunter | 2003-11-17 07:57:50.0 |
| BWG | 2003-11-14 13:39:08.0 |
| glover3045@comcast.net | 2003-11-13 22:51:23.0 |
| poolboy | 2003-11-13 22:22:52.0 |
| WHY ME!! | 2003-11-13 13:39:33.0 |
| ET | 2003-11-13 12:39:23.0 |
| jake | 2003-11-12 15:56:05.0 |
| chevy1941cpe | 2003-11-11 18:42:28.0 |
| pissed off in TN. | 2003-11-08 00:00:01.0 |
| chevy2power@aol.com | 2003-11-04 19:14:44.0 |
| Eric | 2003-11-01 07:19:37.0 |
| Eric | 2003-11-01 07:13:38.0 |
| Eric | 2003-11-01 07:07:46.0 |
| sldaconrad@aol.com | 2003-10-30 20:27:08.0 |
| Scott (99 Sub K1500 5.7) | 2003-10-29 07:51:14.0 |
| van man | 2003-10-27 20:30:47.0 |
| WHY ME!! | 2003-10-27 07:15:16.0 |
| Jim | 2003-10-25 15:57:55.0 |
| Coon Ass to ktaylor832 | 2003-10-23 08:18:40.0 |
| kaposiakev@msn.com | 2003-10-23 00:32:40.0 |
| 96 2 dr 4 wheel drive Tahoe Replies and Post | 2003-10-22 10:50:54.0 |
| ktaylor832@bresnan.net | 2003-10-21 19:44:23.0 |
| nomobowties@nospam.com | 2003-10-11 06:45:35.0 |
| kyle | 2003-10-08 09:04:07.0 |
| Rich | 2003-10-07 16:39:53.0 |
| 2000TahoeFromHell | 2003-10-06 20:39:23.0 |
| spankmoo | 2003-10-06 10:42:18.0 |
| GMC owner in Louisiana | 2003-10-06 08:41:49.0 |
| MarkinBritishColumbia | 2003-10-04 08:32:22.0 |
| MarkinBritishColumbia | 2003-10-04 00:06:05.0 |
| 2003-10-02 13:02:31.0 | |
| brutis | 2003-09-30 10:14:01.0 |
| brutis | 2003-09-30 10:01:53.0 |
| Sam | 2003-09-29 19:05:51.0 |
| TJMILLER01@msn.com | 2003-09-29 11:37:55.0 |
| Krispy Kow | 2003-09-29 10:03:42.0 |
| jwmf | 2003-09-28 12:18:08.0 |
| E.D.L. | 2003-09-28 06:16:31.0 |
| will leaking rear main seal on 5.7 liter | 2003-09-25 01:36:54.0 |
| will | 2003-09-25 01:34:12.0 |
| J.F.S. | 2003-09-21 19:55:42.0 |
| jamie | 2003-09-21 14:53:55.0 |
| JD | 2003-09-21 14:21:25.0 |
| wizzar999@hotmail.com | 2003-09-20 13:12:26.0 |
| 2003-09-20 05:16:31.0 | |
| TJMILLER01@MSN.COM | 2003-09-18 07:06:15.0 |
| wizzar999@hotmail | 2003-09-14 12:22:56.0 |
| 2003-09-14 08:45:57.0 | |
| jdisham@yahoo.com | 2003-09-13 18:35:32.0 |
| 2003-09-11 22:28:09.0 | |
| Lifted 99 Silverado | 2003-09-11 20:19:36.0 |
| d1m_bu1b@yahoo.com | 2003-09-10 17:16:11.0 |
| timberlinebuilders@hotmail.com | 2003-09-07 19:31:36.0 |
| skoal1968@yahoo.com | 2003-09-06 23:37:54.0 |
| george | 2003-09-06 04:10:04.0 |
| kaposiakev@msn.com | 2003-09-04 16:38:40.0 |
| Joranamo | 2003-09-03 23:50:05.0 |
| AC | 2003-09-01 22:39:48.0 |
| 2003-08-31 20:46:25.0 | |
| Spankmoo | 2003-08-31 18:18:06.0 |
| Tom | 2003-08-30 19:58:28.0 |
| gbugeye@aol.com | 2003-08-30 13:33:00.0 |
| dharper863@aol.com | 2003-08-29 03:45:37.0 |
| pdawg | 2003-08-28 00:48:33.0 |
| Spankmoo | 2003-08-27 23:29:16.0 |
| 2003-08-27 22:10:34.0 | |
| CHAD C. | 2003-08-27 12:20:25.0 |
| Daddy | 2003-07-24 21:08:34.0 |
| E.T. | 2003-07-24 19:52:50.0 |
| Joe T | 2003-07-23 15:40:24.0 |
| Jeremy | 2003-07-21 15:58:10.0 |
| Sam | 2003-07-19 20:10:08.0 |
| Victor - victor@guerrero.org | 2003-07-18 11:05:25.0 |
| Phil, phil@nsfab.com | 2003-07-16 19:08:38.0 |
| Robert Louisiana bobnbetty@socket.net | 2003-07-16 16:15:22.0 |
| Greg | 2003-07-16 04:20:56.0 |
| Brian | 2003-07-15 17:51:22.0 |
| E T | 2003-07-15 16:12:22.0 |
| eclipsencsu | 2003-07-14 21:46:57.0 |
| Coon Ass in LA | 2003-07-14 15:07:35.0 |
| Greg | 2003-07-14 01:11:57.0 |
| 2003-07-09 15:25:05.0 | |
| animal | 2003-07-07 19:19:28.0 |
| acraw69356@aol.com | 2003-07-07 13:43:43.0 |
| E. T. | 2003-07-06 13:04:38.0 |
| littledutchman@crcom.net | 2003-07-06 03:07:32.0 |
| E. T. | 2003-07-05 19:06:36.0 |
| Chevyman | 2003-07-03 13:48:04.0 |
| Abigmikedawg@aol.com | 2003-07-03 13:46:31.0 |
| chadcoomer@gbronline.com | 2003-06-27 20:29:01.0 |
| taustin40@hotmail.com | 2003-06-27 09:22:16.0 |
| dennis.brown@kosa.com | 2003-06-26 04:12:04.0 |
| Sbell93056@AOL.COM | 2003-06-24 12:28:13.0 |
| tdm5032c@att.net | 2003-06-22 21:09:23.0 |
| R-Carrillo@SBCGlobal.net | 2003-06-16 23:51:31.0 |
| newbie | 2003-06-13 21:18:14.0 |
| buzz@nc.rr.com | 2003-06-12 20:10:26.0 |
| buzz@nc.rr.com | 2003-06-12 19:42:23.0 |
| TheTeflonDon@comcast.net | 2003-06-10 18:51:33.0 |
| Mike | 2003-06-09 22:14:57.0 |
| STEWART | 2003-06-07 18:53:57.0 |
| STEWART | 2003-06-07 18:53:22.0 |
| lonesnowolf@comcast.net | 2003-06-07 14:36:42.0 |
| R-Carrillo@SBCGlobal.net | 2003-06-06 20:52:28.0 |
| mario | 2003-06-06 20:35:13.0 |
| 2003-06-03 20:18:15.0 | |
| sherwin | 2003-06-02 18:23:51.0 |
| 2003-06-01 21:30:09.0 | |
| eric | 2003-05-29 20:05:17.0 |
| Johnsobg@aol.com | 2003-05-23 03:53:44.0 |
| Island Sports | 2003-05-22 09:43:58.0 |
| Island Sports | 2003-05-22 09:16:03.0 |
| Justin | 2003-05-17 20:42:47.0 |
| sabersal@aol.com | 2003-05-16 12:35:07.0 |
| jon | 2003-05-10 09:04:15.0 |
| BEERZ168@hotmail.com | 2003-05-07 00:02:24.0 |
| Edwin | 2003-05-05 22:55:40.0 |
| Robert Godlove | 2003-05-05 14:11:28.0 |
| garry from kansas | 2003-05-04 15:40:53.0 |
| Justin | 2003-05-03 10:29:15.0 |
| DaveR | 2003-05-02 11:24:13.0 |
| J K | 2003-05-01 07:43:14.0 |
| berlinj | 2003-04-30 23:00:49.0 |
| DV | 2003-04-30 22:46:13.0 |
| boboleski 7 | 2003-04-28 21:44:06.0 |
| mowgly318@yahoo.com | 2003-04-24 22:14:49.0 |
| chad | 2003-04-24 14:25:43.0 |
| L.T. | 2003-04-17 16:00:06.0 |
| Broken crankshaft | 2003-04-17 13:22:41.0 |
| Unhappy Yukon owner | 2003-04-17 09:20:03.0 |
| Sammy | 2003-04-11 12:48:30.0 |
| J.L. | 2003-04-09 13:12:51.0 |
| luckey | 2003-04-07 22:22:04.0 |
| this is still ridiculous | 2003-04-06 22:43:21.0 |
| mikeliftedchevy | 2003-04-06 21:56:59.0 |
| This is ridiculous | 2003-04-03 15:52:46.0 |
| bjhous@roushind.com | 2003-03-30 19:06:59.0 |
| tweety | 2003-03-23 23:42:01.0 |
| steve-o | 2003-03-19 22:49:25.0 |
| steve-o | 2003-03-19 22:44:11.0 |
| Big Eddy | 2003-03-19 08:29:49.0 |
| 2003-03-18 16:52:33.0 | |
| dave | 2003-03-16 22:04:19.0 |
| LEROY HICE | 2003-03-16 08:20:54.0 |
| tmcdonn146@aol.com | 2003-03-15 19:04:43.0 |
| STEVE B | 2003-03-14 10:56:56.0 |
| 2003-03-13 18:22:25.0 | |
| dencelmer@cybrquest.com | 2003-03-12 16:25:14.0 |
| deep south texas | 2003-03-11 22:55:56.0 |
| shane | 2003-03-10 02:22:05.0 |
| dkd | 2003-03-09 18:45:18.0 |
| S.A. | 2003-03-09 10:09:54.0 |
| Ourtrek | 2003-03-08 21:03:40.0 |
| Steve | 2003-03-08 16:37:35.0 |
| Conrad | 2003-03-07 19:27:45.0 |
| S. A. | 2003-03-01 09:00:32.0 |
| mine | 2003-02-28 09:07:55.0 |
| 2003-02-27 22:52:35.0 | |
| Les | 2003-02-26 11:46:26.0 |
| Al | 2003-02-24 18:07:39.0 |
| E T | 2003-02-22 17:24:56.0 |
| craig | 2003-02-22 17:03:26.0 |
| JIM | 2003-02-18 14:16:14.0 |
| oldtug | 2003-02-17 00:28:12.0 |
| Ridekool | 2003-02-15 17:56:51.0 |
| Phil | 2003-02-14 19:58:09.0 |
| Dean | 2003-02-11 14:07:33.0 |
| Darryl | 2003-02-11 07:13:24.0 |
| cadillacryder20@aol.com | 2003-02-09 22:26:51.0 |
| E.T. | 2003-02-09 18:28:07.0 |
| dean | 2003-02-05 20:33:22.0 |
| Dean | 2003-02-05 20:32:29.0 |
| Bill | 2003-01-30 19:50:09.0 |
| 2003-01-27 22:26:10.0 | |
| wilklawn@aol.com | 2003-01-27 07:47:25.0 |
| steve-o | 2003-01-24 22:31:40.0 |
| NATHAN | 2003-01-24 12:41:16.0 |
| ron | 2003-01-22 21:00:33.0 |
| Larry | 2003-01-21 05:37:08.0 |
| frank t. | 2003-01-19 04:30:49.0 |
| rrme7golf@htm.com | 2003-01-09 11:43:23.0 |
| Steve | 2003-01-08 19:43:41.0 |
| mo | 2003-01-08 14:28:17.0 |
| Mike (not affiliated w/GM) | 2003-01-07 01:39:13.0 |
| rebarton@onlinemac.com | 2003-01-06 20:32:04.0 |
| jarzeriearc@aol.com | 2002-12-26 18:30:32.0 |
| Richie | 2002-12-22 15:54:50.0 |
| richie | 2002-12-22 15:53:05.0 |
| kenneth tigner | 2002-12-01 19:32:39.0 |
| philr100s@aol.com | 2002-11-09 15:16:57.0 |
| bobm@amccsi.com | 2002-10-14 14:16:48.0 |
| Eddie Hale | 2002-10-04 11:37:10.0 |
| me | 2002-10-01 18:16:35.0 |
| skeller | 2002-08-14 13:21:09.0 |
| darcin26@hotmail.com | 2002-08-08 11:44:01.0 |
| tstancil@alltel.net | 2002-08-06 11:59:25.0 |
| Steve | 2002-07-28 17:55:02.0 |
| TODDSTRUCK@AOL.COM | 2002-07-27 09:15:00.0 |
| Yomper | 2002-07-19 16:59:50.0 |
| timdeaton@yahoo.com | 2002-06-25 17:33:20.0 |
| davesanrn@hotmail.com | 2002-06-02 20:29:12.0 |
| sketch714@aol.com | 2002-01-28 18:18:17.0 |
| Mick Santa Fe | 2001-08-15 17:28:02.0 |
| JOE | 2001-07-21 19:08:42.0 |
| timdeaton@yahoo.com | 2001-07-20 16:09:22.0 |
| yomper | 2001-06-17 17:42:28.0 |
| 2001-06-14 12:19:19.0 | |
| Northern Nick | 2001-05-06 16:20:52.0 |
| Platinum Pete Kansas | 2001-02-25 10:09:05.0 |
| Arkansas and Pushing it | 2001-02-21 17:36:45.0 |
| Dale Silver -Best Replacement Plugs? | 2001-02-20 20:15:25.0 |
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 01-Aug-10
I have a 98 5.7 vortec engine in a z71 when the engine sets for a long period of time like 24hrs it will not crank without the help of pouring a shot of gasoline or a little spray of starting fluid. After it cranks and runs for a while no problems.
Subject: RE: Chevy Vortec V-8 Gas Engine 5.7
From: cb49crazy
Date: 28-Jul-10
po171-po174 codes ,2- 02 sensors replaced and thottle position sensor, plugs ,synthetic oil,maf sensor, aif filter . replaced #4 injector , put distribitor back in time and cleared all codes but the 171 - 174 and ideas ready to set fire to the 2000 express 1500 conversion van
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 7.4 litre vortec
Date: 17-May-10
I have a 1999 suburban with a 7.4 litre vortec.It starts right up but idles rough for a couple minites.When the truck is warmed up and I shut it off for a few minites then restart it and drive off there is a loss off power and the engine will back fire. Ihave to feather the gas peddle for about 30 seconds to get it to run just ok. Maybe injectors? Any suggestions?
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 04-May-10
Subject: RE: Chevy v-6 ,4.3 eng.
From:
Date: 30-Mar-10
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Joe 5.7 Vortec
Date: 26-Dec-09
I had water leaking in my oil. So I replaced my lower intake manifold gasket. After I got it all back together. I turned the key and it wouldn't start. It just cranked. When I let off the key, it backfired. Recap: Everytime I turn the key, it doesn't start.And when I let go, it backfires. If there is anyone that can help, it would be greatly appreciated. Thank you.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 26-Sep-09
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Steve T
Date: 15-Sep-09
I have a 1999 GMC 4.8 V-8 pick-up and I am having serious dogging when the motor is cold . After about 2minutes it,s fine and I don't have another problem with it all day it runs like a charm. I have replaced the spark plugs, the fuel filter and have tried gas treatment. Anyone with any ideas ?? Steve
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rdaggett39@yahoo.com
Date: 10-Jun-09
having problems with my 1997 chevy z71 4by4 5.7 vortec eng replaced crankshaft sensor spark plugs coil wires cap rotor and still have very little spark truck will not start oh yea replaced timming chai and gear need help please thank you
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 16-May-09
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 14-Feb-09
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jerry
Date: 09-Jan-09
i have a 1997 gmc 2500 4x4 and i had the same problem as everyone else that owns a gm product intake gasket leaks because they used cheap overseas made gaskets but other then that i got 261,000 miles on it and still truckin
Subject: RE: Chevy Vortec V-8 Gas Engine
From: reb tlb1021@hotmail.com
Date: 21-Dec-08
i've got a 98 ford truck with a 4.2liter valves are bad should i trade for a 97 chevy surburban 350 would i be better off in the long run
Subject: RE: Chevy Vortec V-8 Gas Engine
From: bkovacic67@yahoo.com
Date: 27-Nov-08
need help have a 96 tahoe cant figure out p1345 code have tried everthing anybody has ideas please email me
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Redneck92- biggest motor in a 89 chevy blazer
Date: 14-Oct-08
Hey all, the biggest motor that i have put in a 1989 Chevy Blazer is a 454 Chevy big block with racing pistons and cams. Racing rocker arms and Holly four barreal. With Racing fuel injecters and four stages of nitrous.I have fleeped it over backwords 4 times. Thank God for roll bars.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: lawrencevgibson@gmail.com
Date: 26-Aug-08
Any body with rough idle should try cleaning thottle body. They carbon up badly. I bought some thottle body cleaner at auto zone and removed the throttle body to clean it( this is the only way to make sure you get all of the ports cleaned out. I have a 7.4L in my dually crewcab and it seemed to help alot. My throttle body was very dirty.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 75dodge@live. com
Date: 25-Jul-08
i would like 2 know how to convert form a 4.3 2 a 5.2 and keep the efi. on a 93 gmc s15 jimmy. the 5.2 came out of a 79 chevy car. i have been told u can drill out the efi to intake and that will it will work on a 5.7. will it work 4 a 5.2. and will the 4.3 s belt will that work 4 the 5.2. can i make it work
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Gas passer .......Literally !!
Date: 22-Jul-08
Hi all, I lucked upon a beautiful '97 Silver / 3 door in mint condition but had a bad engine. grabbed it up for $2000. Found a low mileage Vortec V-8 shortblock and put 'em together. Runs like a scalded ass monkey.the gas mileage can't be normal. I figure I'm getting around - 4 MPG. The engine starts with a bump of the key and is smooth and quiet but I think this thing burns gas when it's parked for the night. I have 1 code on the OBD ....comes back to pre convertor O2 sensor. What would make the mileage unrealistically bad !! Help !!! passing way too much gas !!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 13-Jul-08
Subject: RE: Chevy Vortec V-8 Gas Engine
From: d.atkins97@yahoo.com
Date: 07-Jun-08
What are the possible caues of a high idle on a 2004 4.8 liter Vortec?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chriscuchiara@yahoo.com
Date: 06-Jun-08
I have 97 chevy truck with the 5.7 votex. I change the cap,rotor,wires it runs fine for 12,000 mile. Then it missfires at radom cd p0300. change the parts again prolem goes away till around 12,000 miles. The truck has 314,... on it new coil and modgule. still same proble.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: doug macrobbie
Date: 31-May-08
wantto replace the 5.7 liter engine in my 91 sierra s.t with a 2003 5.3 liter vortec how hard will this be also want to use the sfi feulinjection
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 30-May-08
need help i have 1997 chevy with 5.7 vortec when i take off and give it gas from about 2000rpm to 4000rpm it sounds like its only running on a few cylinders i changed the fuel filter checked the spark plugs and when i took them out they were like a chalky white at the end whats this mean
Subject: p 1345
From:
Date: 24-May-08
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 24-May-08
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Canada
Date: 02-May-08
This is not a reply but a question: Has anyone tried after market products to increase gas mileage on the 6litre gas V8, with any success?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: carter
Date: 27-Apr-08
i have an 1997 gmc yukon with an 350 5.7L vortec , my lower intake manifold leaked (Common in these engines) and antifreeze was expelled to my oil pan , so i paid $2000.00 to install a new lower intake and to have my cylinder heads rebuilt (new seals etc.) new head gasket and new intake gasket. 2 weeks later my crankshaft seizes (antifreeze that was in my oil pan ruined my crankshaft) originally i should of replaced engine but i was hoping the crankshaft was not harmed, so now im going to install another engine, if i order another one from dealership, would it still have the bad gaskets that were mentioned in the lower stories , and is there another engine that has more horsepower that will bolt right in with no modifications needed any suggestions will be great
Subject: RE: Chevy Vortec V-8 Gas Engine
From: southfarm
Date: 24-Apr-08
new chevy 08 6.0 gas 5mpgs no power and gm says thats all i get just great as truck hac 1000 miles on now and most miles put on by dealer its great to see howfar gm has come on name so far any one looking to buy be awhere of gas mpg it sucks gas and no power iam not the only one with one found more guys with same thing. well guys trading mine off in next few days great to own truck 30 days while gm plays with it to tell ya thats it it your s last gm for me
Subject: 99' 5.7 in Express Van misfire-stall-loss of powe
From: Andrew
Date: 11-Apr-08
1999 Chevrolet Express Van G1500 Conversion 115K miles = 5.7 vin "R".
I will start by saying I actually spent about 4 hours reading this board. I did clean my egr valve - (actually swapped with my suburban) - and have ordered 1.Delco 41-993's spark plugs 2.new cap/rotor 3. plug wires 4. Ig coil 5. Bars leaks just as a supplement. 6. and used ignitor (found cheap).
OK so we bought a conversion van about 3 weeks ago. Last week I drove it up town with my family, it was raining. It drove just fine (as it has since we have bought it) up to town. When we were leaving I started the van, and after a minute it misfired and stalled.
OK it starts ok, Service Engine soon is on. Idles irradically, It will idle real high come down some and idle back up. Smells rich, and is misfiring. Stalls when put in gear.
I have only drove it once back home since the initial act up. The SES light blinked once under load on the way home. If I slowed some it stopped blinking.
IT SEEMED TO ME A WATER BASED EVENT POSSIBLY. The ECM has all the paint flaked off.
Either way I remember now how when we went to buy the van we had to come back (financing) a few days later. He, the salesman, put the van in a garage until we picked it up. I told him I wanted to cold start it, and he said "what you want to drive it out of the bay?" I said I suppose not.
It ran real nice. I also have a 1999 GMC K1500 suburban (bought with 50K now 128K )so I am not real green to the 5.7. I think the van (115K)runs nicer.
Thanks alot whomever replies.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 08-Apr-08
how do time a 2002 5.7 chevy vortec engine.Getting code 1345 now.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: *jclark
Date: 05-Apr-08
I bought the 2007 1500 siverado lt2 I think its loaded went for 39000 with 6.0 vortex engine so far i love this truck 10000 miles on it and i pull my 25 seacraft with two 200 mercs on it just drove it down from Boston to Cape Cod 70miles that engine doesnt skip a beat Im using mobile one in the engine I just love this truck always had chevys but 1 ford i plow with f 250 91' 100 thousand miles still strong almost bought the toyota. anyways whats the horsepower on thes6.0 vortec mine flys love it ride everything so far JOhn from Cape
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mccscougar@aol.com
Date: 03-Apr-08
Can't find crankcase sensor on a 1996 chevy van 1500 eng5.0
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 24-Mar-08
Subject: RE: Chevy Vortec V-8 Gas Engine
From: dr_454
Date: 15-Mar-08
IT MUST BE THE FUEL PRESURE REGULATER WICH IS LOCATED UNDER THE INTAKE MANIFOLD IT GIVES OUT THEN POURS TONS OF RAW GAS IN TO MOTOR FIX IT QUICK DONT RUN IT LIKE THAT
Subject: chevy ck1500 work truck 4.3liters v6 headers
From: fhuse
Date: 12-Mar-08
i need a head for a chevy ck1500 work truck 4.3liter v6
Subject: RE: Chevy Vortec V-8 Gas Engine
From: savage7237
Date: 24-Feb-08
Have 97 tahoe 350 vortec multipul misfires code po300 comes up also po135 comes up pulled plugs out all 8 carboned up alot of unburt gas looks like before i bought it somebody put new intake on it and i put plugs, wires, cap, rotor in it anybody can help really need help! have older 1990 style 350 with the tbi and runs awsome 220000 miles on it pulled camper horse trailer never had any problems oh put fuel pump in it at 200000 miles
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 24-Feb-08
I'M LOOKING TO BUY O2 SENSOR'S FOR MY VORTEC.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 21-Feb-08
where is the oil pressure switch on a 2004 chevy 5.3 in a silverado located . My pressure reads low and I want to put a real gauge on it in order ton double check if the engine is shot at 48000 thousand miles ?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: wyopokes@live.com
Date: 11-Feb-08
I have a 2004 Chevy silverado with a 5.3 liter. I have gotten random misfires on 3 and 5 cylinders and after that i had the fuel injection system cleaned. It started working fine after that and then it said 1,3,5, and 7 cylinders where misfiring. I have replaced the spark plugs, tried a new map cencsor and cleaned out the fuel rail, but nothing seems to be helping. Pretty much I'm stuck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 11-Feb-08
I have a 2004 Chevy silverado with a 5.3 liter. I have gotten random misfires on 3 and 5 cylinders and after that i had the fuel injection system cleaned. It started working fine after that and then it said 1,3,5, and 7 cylinders where misfiring. I have replaced the spark plugs, tried a new map cencsor and cleaned out the fuel rail, but nothing seems to be helping. Pretty much I'm stuck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: gram.pason@yahoo.com
Date: 11-Feb-08
I have a 1997 Chevy Silverado Z71 with a 5.7 engine which was replaced with a new engine from Chevy. The cam shaft and crank shaft are not lining up. I have re-placed sensors on both, check timing, new distributor, and still getting a reading that they are not lining up with each other. Is there something else that needs to be checked.
P.S. PLEASE HELP!!!! Pope
Subject: RE: Chevy Vortec V-8 Gas Engine
From: tom
Date: 19-Jan-08
These engines are famous for leaking lower intake manifold gaskets. Yes, coolant can get into the oil through a leaking lower intake manifold gasket. If you are loosing coolant, but cannot find a leak, then the gasket is leaking coolant into the engine oil or your transmission cooler is cracked. If there is coolant in your oil then there is only two ways it can get in. #1-leaking lower intake gasket #2-leaking head gasket. If the head gasket is leaking like this, then the engine will misfire so bad that you cannot drive it. At 150000 miles I suggest simpley replacing the vortec heads with brand new GM performance heads Part# 12558060. These are cheap, cost as much or less than having a valve job done on old heads, they perform better than stock, and you just bolt them on--no down time!
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 13-Dec-07
Try the valve cover gasket, the gasket has a leak around the head, where the sparkplug screw in, they will fill up with oil!
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 16-Nov-07
Plug fouling and smoke problems that several of you have
My 98 5.7 Vortech has been through several shops for these symptoms. #1 and #2 plugs foul, then supposedly unburned fuel in the cylinder gets into the oil via the rings, thins the oil and makes it smoke and burn more oil, resulting in more plug fouling from the oil that, being thinned, probably leaks though the valve stem seals. Missing gets worse and worse.
Oil change and sparkplug change seems to give short term cure. I have also had injector replacement and oxygen sensor replacement, and computer replacement. These were done together with Oil change and sparkplug change, but guess what, the unmistakable symptoms return in a week or so.
I am about to redo the valve seals, but have heard that the oil can leak in through the intake manifold gasket. I hav e not yet looked, but hope for this answer:
Is that even possible?
Does oil even contact the intake manifold gasket on the 350 vortec?
Is it worth it to get a valve job on a 150,000 vortec?
Subject: Chevy Vortec V-8 Gas Engine
From: JIMBO- 1999 VORTEC 7.4 L POOR MPG, BLACK EXHAU ST
Date: 13-Nov-07
I've replaced all plugs, wiring, rotor cap, filters and the engine exhaust still burns black with poor mileage. Any suggestions. Thank you for any help.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: tazchevy2@yahoo.com
Date: 20-Oct-07
I have a 99 Chevy 1500 5.7 Vortec engine. 110,000 miles with a few problems. 1. Fuel pressure regualtor on these engines are located under the plenum and if they fail dump raw fuel directly into the intake ports causing misfire and detnonation. Is there a company that makes a new setup for this where it is outside the plenum or am I stuck with it. 2. After going through the normal tune up with the engine have still been noticing loss of preformance with the engine. Did all of the basic and advanced checks. Comp. check, electrical, plugs, wires, distributor, so on and so forth. Still no luck. Could the two be linked??
tazchevy2@yahoo.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 07-Oct-07
jbjh
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jheath 1995 Tahoe
Date: 21-Sep-07
I have a 1995 Tahoe. I have a k&n filter, four rivers front/rear drive shafts, towing shift kit and flowmaster exhaust. I've found in the past with a older truck that between open, glasspacks, factory, and turbo mufflers I got the best preformance and mileage out of the turbo setup. I have two problems, one is that when the suv warms up I get ALOT of hesitation upon takeoff, and when I kick in passing gear. New plugs, cap, button, and wires. Smells like gas bad when I remove the airfilter. Also I am in process of trading my Flowmaster exhaust for the factory exhaust. In the past I get better performance with the factory type setup. Has anyone made this swap? If so how did it turn out? Need help ASAP, trading exhaust tommorrow. 9/21 6:01 pm
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Coolant Overflow Jug
Date: 10-Sep-07
Hey there, I would go down to your local wreckers and get one out of a wreck for $20 before shelling out $150 to a GM Dealer., pick up a Stainless worm gear clamp to make it complete. Dan.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: madcitymsk
Date: 09-Sep-07
My '98 Tahoe (125,000mi)is losing coolant off the front somewhere. it looks like the plastic overflow reservoir has a leak at the bottom. anyone heard of this one before? wonder what a new piece of plastic costs?? i'm thinking about $330 for a milk jug i welcome your thoughts. msk, middleton, wi madcitymsk@yahoo.conm
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 29-Jul-07
Here's what the new initiatives involve. For the 2001 model year, GM has a new Vortec 8100 gasoline engine option, the new Duramax 6600 DI diesel, and also two new transmissions, the ZF S6-650 six-speed manual and the new Allison 1000 Series, five-speed automatic.
The new Vortec 8100 is a refined version of the 7.4 L (454 CID) gasoline engine. The bore remains constant at 4.25 in. (108 mm), but it has been stroked out from 4.00 in. (101.6 mm) to 4.37 in. (111 mm) and now has a displacement of 8.1 L (494 CID).
The Vortec 8100 engine will have a rating of 340 hp at 4200 rpm peak torque of 455 ft.lb. at 3200 rpm. The engine has been extensively redesigned to incorporate an internally balanced crankshaft, new cylinder heads with common style porting and porting length to minimize torque variation from cylinder to cylinder.
The fuel rail is not part of the manifold and the throttle body has been repositioned on the intake manifold to distribute air more efficiently New pistons have a shorter combustion height and tighter ring pack. Exhaust manifolds are now cast stainless, a first for GM full-size trucks.
The standard engine for the full-size pickups is actually the Vortec 6000, a 6.0 L engine rated 325 lip at 5000 rpm with peak torque of 370 ft.lb. at 4000 rpm, and this is the top rated engine for the lighter duty Silverado/Sierra models. It is a redesigned version of the venerable 5.7 L (350 CID) V-8.
The real big news, I believe, will be the Duramax 6600 diesel, which will have a rating of 300 lip at 3100 rpm and peak torque of 520 ft.lb. at 1800 rpm. This engine is a result of the DMAX joint venture between GM and Isuzu Motors in Moraine, Ohio, which is currently scheduled for pilot production in May 2000, with normal production beginning in August 2000. Initial plant capacity is 200,000 per year.
The 6600 engine is a new, 90[degrees] V-8 direct-injected diesel with a bore and stroke of 4.05 in, (103 mm) X 3.89 in (99 mm). Total displacement is 6.6 L (403 OlD).
The engine will be optional equipment on the 2001 Chevy Silverado and GMC Sierra 2500HD/3500 series pickups, including Crew Cab, Big Dooley and Chassis-Cab models. The models will be introduced in the fall of 2000. The Silverado HD and Sierra HD will have a gross combination weight rating (GCWR) of 22,000 lb. Gross vehicle weight (GVW) ratings will be 9200 lb. for the 2500HD models and up to 12,000 lb. for the 3500 series.
The 6600 engine has a cast iron block with aluminum high swirl cylinder heads for exceptional cooling characteristics. It features charge-air cooling, turbocharging, a four-valve-per-cylinder design and new Bosch common rail fuel system. Many more design features of the 6600 engine will be examined in an upcoming issue.
The new transmissions are also central to GM full-size pickup initiatives. The ZF S6-650 is a six-speed manual and it can easily handle the high torque and power requirements of the new engines. It is fully synchronized in all gear ratios and has the potential to handle GCWs up to 26,000 lb. Six forward speeds gives it smaller gear ratios and allows higher engine revolutions after each shift, providing higher usable torque.
The Allison unit is a fully automatic five-speed and is electronically controlled. It can handle GVWs up to 19,850 lb. and GCWs up to 26,000 lb. That puts it into the mid-range truck category.
GM is girding for a battle next year in the full-size pickup market. These are the new weapons in the arsenal.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dale
Date: 13-Jul-07
We put in platinum plugs and got an extra 2mpg
Subject: RE: Chevy Vortec V-8 Gas Engine
From: sargeaf@netins.net
Date: 31-Jan-06
Guess what? My problem was a plugged catalytic converter on the drivers side.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jeffery
Date: 30-Jan-06
It's me again:
I found the fix to that awful "ticking" sound.
Problem: 1996 GMC Yukon GT - 4WD (2 door) with a 5.7 liter Vortec 5700 v8 SFI Gas engine with fuel injection, automatic 4 speed electronoic trans catalyst, with the loud, horrible "ticking" sound the lifter makes every morning. It sounds like a pin hammer hittin a big piece of steel.
Action: A guy at Pep Boys here in LA told me that all GM Vortec engines manufactured from 1994 - 1999 have this "lifter" problem. He says the oil galleys for the lifters were designed by GM to be too small.....so they tick very loudly. GM won't fix the problem, because they do not recognize this as a warranty item or a defect, but if they did, they would only replace defective parts with more Genuine GM Parts (defective) parts anyway. This is no good. No need to rebuild the engine, no need to install a new engine.
Solution: This is not a lifters only replacement. The camshaft and the lifters are "mated" together...so they wear together. The solution is to install a high-performance camshaft like "Isky, Crane or Louvatti". He told me that the camshaft controls the valves, it tells the valves when to open, how long to open and how far to open. With this replacement, it also replaces the pushrods and the lifters. For those grease monkeys who can't do it themselves, typically a hi-performance shop will only install a hi-performance part (like a camshaft) This is the fix from what I've been told.
Subject: RE: Chevy Vortec V-8 Gas Engine Misfires
From: sargeaf
Date: 29-Jan-06
I have a 2003 GMC with a 4.8 vortec. I blew the original engine at 80,000 miles. I lost power and the engine started knocking. Three pistons had fozen rings causing motor replacement. The new motor misfires. The Chevy dealer cannot determine the problem, neither can my mechanic so far. This has become very costly. Can anyone provide some help?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: GMCdaddy
Date: 25-Jan-06
I have a 2003 5.3 vortec and love the looks of the truck I also have a 6.0 vortec gmc denali and love it maybe it priced to much? The problem with the knocking is no problem! Hell it lets you know it running! Its when you dont hear nothing then you got a problem! I wont to power up my 5.3 to about 400+ hp at the wheels could anybody advise what could be done to the motor to get to this staus? I have headers,cold air intake,programmer and a after market 410 rear end gear and possitive double clutch unit that I love! does anyone have a any ideas on what I could do next to make more power but keep it street worthy?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Armand
Date: 16-Jan-06
I have a 1997 GMC 1500 5.7 Vortec Gas Engine and i just changed the Battleship gaskit cause it was leaking Engine coolant......but now its leaking somewhere else anyone have any ideas where from???
E-Mail me if you do: Armand_joseph9@hotmail.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: gblair@hwequipment.com
Date: 15-Jan-06
My '98 Z71 with 5.7 on propane/gas (295,000 km)is losing coolant at the front of the center head gasket. What is the latest and greatest on sealant additives that may work?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Randy in Vancouver
Date: 13-Jan-06
Are there any differences in the Vortec 6.0 in the 2006 models?
We are considering a new silverado 1500HD 4x2.
Its the only engine GM will put in the truck...Why?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: To Mark from Ron
Date: 10-Jan-06
Hi Mark,
I found outlast summer that the Quick Seal is no longer being made. (Probably due to a plant shutdown or a move to Asia)
The vegetable based rad leak seal should be available from an auto parts shop or the big three dealer parts counters.
Did your leak start after you replaced the coolant? If so, there may have been a leak sealer in the coolant already and it has washed away.
I hope you also got rid of the red coolant long ago. Good luck.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Mark
Date: 08-Jan-06
I have a 1999 GMC Suburban with the 5.7 and am loosing Radiator fluid slowly. Ron has indicated Both Quick Seal and has referred to a vegetable based sealer to work on the bad intack gaskets. Ron (or anyone) where can you buy the vegetable based sealer and who makes it?
Please respond to mwoods5999@sbcglobal.net
Mark Woods mwoods5999@sbcglobal.net
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-Jan-06
Subject: RE: Chevy Vortec V-8 Gas Engine
From: dallas in colorado springs co 1/1/06
Date: 01-Jan-06
1998 CHEVY Z71 PROBLEMS- 53000 MILES TRANMISSION WENT,TWO AIR CONDITIONING PUMPS,ONE IDLER ARM,THEN THE LIFTERS WOULD RATTLE WHEN YOU WOULD START IT UP WHEN IT WAS COLD AND THE LOWER MAIN BEARINGS WOULD MAKE A NOISE UNTIL IT WARMED UP,FINALY AT 77800 MILES IT SPUN THE LOWER BEARINGS AND STARTED KNOCKING IT HAS THE 350 VORTECH IN IT WHAT A PEACE OF SHIT THIS TRUCK IS,BOUGHT A FORD F 350 diesel and the chevy sits with a blown motor until i can afford to replace the engine
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Jeffrey
Date: 27-Dec-05
Hi Jeffrey,
Have you switched oil thickness for the winter? If so, "piston slap" is more likely since thinner oil cushions less. You are not the only one with the problem.
Have you had your oil pressure checked?
Fuel also is different in winter and that can cause knock on idle.
If you had "loose lifters" it would become noisier as the engine warmed up... not quieter.
Before you spend a fortune, get a dynamometer checkup, starting with a cold engine to see whether all timing changes are within spec.
Good luck. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jeffery.sanders@losangeles.af.mil
Date: 27-Dec-05
I need help !!! I own a 1996 GMC Yukon GT - 4WD (2 door) with a 5.7 liter Vortec 5700 v8 SFI Gas engine with fuel injection, automatic 4 speed electronoic trans catalyst. I had the engine rebuilt ($2783)in August 2003 because I was told that the lifters were bad (they were making that terrible TICKING sound) on startups on cold mornings.
Today, I hear the TICKING sound again and now 2 separate mechanics are telling me that I need to have the engine rebuilt again. I was later told by another party that all Vortec engines built from 1994 - 1999 have defective camshafts but GM doesn't recognize it as a recall, besides they would only fix it then with genuine GM parts. I was told that the only known fix is to replace it with a "performance" high quality camshaft. Something about the holes for the lifters were too big......do you know anything about a possible fix for this GM unknown "product feature" ??? I hate the TICKING sound !!!!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: HACK - SPARK FLASH OVER
Date: 23-Dec-05
Been trying to diagnosis my engine misfire. Been doing complete tune-ups. Cap, rotor, wires and plugs. Helps for a while misfire returns. Seems to be spark flash-over. Spark is jumping from the wire boot around the plug. Tried everything. Too hot of a spark?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: tmblweed
Date: 22-Dec-05
1996 chevy 5.7 vortec with the flashing P0300 (intermittant missfire). Had the same problem, changed plugs, wires, rotor and cap with no effect. Truck would run fine around town with no symptoms until I got on the highway or interstate, then missfire and flashing P0300. The flashing P0300 meant the unburned gas would soon foul the catalytic converter. Had to be a fuel problem as the computer put the engine on a 'cruise' mode leaned out to maximum for economy.
Pulled the intake manifold to check the spider injectors and found the number 4 injector nozzel leaking and a clean washed spot into the cylinder where the gas was draining. I guess the leak lowered pressure on all nozzels.
With 100k miles and almost ten years of ultra-reliable use, I had no problems with replacing the gasket and injector spider--cheaper than a new car payment! The fix seems to have cured the P0300 so far, 480 miles and a month down the road without the missfire or code.
God bless our troops! Tmblweed
Subject: RE: Chevy Vortec V-8 Gas Engine
From: gypsyhorses
Date: 20-Dec-05
all that i know that i know is that my 98 gmc (hardly ever has been sick) 3/4 ton 5.7 l 4wd truck is green. and that the fuel pump has always been sort of whine-y. and, very rarely, when hauling the two 2500 lb horses (along with the trailer) and ten bales of hay-when the weather is hot- it has died. but always fires up again after a rest. today it died and i had to walk uphill about five miles. i hae been advised to "find out how to reset the brain and how to run a diagnostic". i'd apologize for my ignorance, if i knew really how un-mechanical i was- somebody also mentioned something about a muffler bearing but i think they were funnin' me. the fuses are good, modulators are modulating and the fuel pump is priming. but ... now. if it were a horse, i'd know just what to do. but it's not and i don't. if anybody could help, i'd advise horse help in return...thanks!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to DEADENDKIDSWEST
Date: 15-Dec-05
Hi Kid,
If you have a choice, try to find the required engine with cast iron cylinder heads. It probably will not easily convert to fuel injection, but it will save you from the all-too-frequent intake manifold leaks that come with mating aluminum to cast iron. It will also be closer to what was available in the fun-50's. Good luck with the restoration
Ron
Subject: re Chevy V6 4.3 loud banging underneath
From:
Date: 08-Dec-05
Subject: RE: Chevy Vortec V-8 Gas Engine
From: David
Date: 30-Nov-05
Own a 2001 Denali with 100,000 KM and has the same loud ticking at cold start up after sitting overnight but it only lasts for a couple minutes and then it is quiet. I put in Quaker State synthetic oil and it still ticks so I am going to try the Baldwin B31 filter with anti-drainback and see if that helps. I HATE THE TICKING! I'll report back on the results. Any other ideas?
Subject: RE: Chevy Vortec V-8 Gas Engine - 6 Litre
From: David
Date: 30-Nov-05
Own a 2001 Denali with 100,000 KM and has the same loud ticking at cold start up after sitting overnight but it only lasts for a couple minutes and then it is quiet. I put in Quaker State synthetic oil and it still ticks so I am going to try the Baldwin B31 filter with anti-drainback and see if that helps. I HATE THE TICKING! I'll report back on the results. Any other ideas?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: DEADENDKIDSWEST
Date: 25-Nov-05
i AM PUTTING A (NON FUEL INJECTED) VORTEC IN MY 51 CHEVY. IS THERE A STARTER SWAP, OR DOES THE STARTER NOSE NEED TO BE GROUND OR SOMTHING. Thank You for your time RETLAW
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 22-Nov-05
where is the coolent in a ford ranger
Subject: RE: Chevy Vortec V-8 Gas Engine
From: tnelthorpe@shaw.ca
Date: 14-Nov-05
The kind of motor is a 6liter vortec, is it a 350 big block or a 350 small block or is it a bigger motor than a 350? Does it cost more for gas than a 5.7liter?
Subject: RE: Chevy Vortec V-8 Gas Engine code p1345
From: Kelly
Date: 11-Nov-05
I have a 1996 K1500 Z71 with 227,000 miles getting a code p1345,after I changing intake maifold gasket. Need help please. E-Mail me at www.kellyryan414@aol.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: dave
Date: 05-Nov-05
I have a 98 gmc sierra 1500 witht the 350. It has the crank sensor on the bottom of the timing chain cover and the sensor has a groove wore into it, like what ever it reads off of fell towards it and wore it down. I believe it is the reluctor wheel. Any idea what causes this or where I can find pictures of this problem area? Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: buttons021@optonline.net
Date: 29-Oct-05
just put in a new comp cams cam in my '98 chevy truck with a 5.7. truck now idles rough and surges when idling in drive. drives really good though. comp cams says its definitly not the cam, they say i must have a vaccum leak. i reset the intake three times with no luck. i was reading the forum and heard of many similar problems. haven't used any coolant sealant. can anyone help?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: buttons021@optonline.net
Date: 29-Oct-05
just put in a new comp cams cam in my '98 chevy truck with a 5.7. truck now idles rough and surges when idling in drive. drives really good though. comp cams says its definitly not the cam, they say i must have a vaccum leak. i reset the intake three times with no luck. i was reading the forum and heard of many similar problems. haven't used any coolant sealant. can anyone help?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: spmchazlett@yahoo.com
Date: 25-Oct-05
I am in need of Vortec 454 parts. Plesae tell me where to look
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mike
Date: 02-Oct-05
I have a 1998 sierra with a noisey fuel pump Any ideas what it could be?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dennie
Date: 01-Oct-05
1998chevy pick-up silverado engine shuts off while driving won't restart
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Onick
Date: 29-Sep-05
Hi Onick,
Has anyone checked the coolant for hydrocarbon contamination?
Has the oil been cheked for coolant contamination?
Have you done a Cylinder Leakdown Test especially on the two fouled ones? I believe that you have a tiny coolant leak into these cylinders... Are you continually having to top up the coolant?
If you were not under warranty... I would suggest... replace the red coolant, flush the system and put in the green coolant and a cube of that vegetable based rad sealant (which is commonly put in at the factory).
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Onick
Date: 29-Sep-05
Hi Onick,
Has anyone checked the coolant for hydrocarbon contamination?
Has the oil been cheked for coolant contamination?
Have you done a Cylinder Leakdown Test especially on the two fouled ones? I believe that you have a tiny coolant leak into these cylinders... Are you continually having to top up the coolant?
If you were not under warranty... I would suggest... replace the red coolant, flush the system and put in the green coolant and a cube of that vegetable based rad sealant (which is commonly put in at the factory).
Ron
Subject: 1998 GMC SAFARI FUEL REGULATOR SYMPTOMS
From: TECH RAY B.
Date: 29-Sep-05
? SURGING ,SMELL CARBON POWDER IN EXHAUST PIPE DOES NOT ALWAYS SURGE ON HILLS OR LEVEL AT 38 TO 70 M.P.H. BUT GETTIN ME BENT OUT OF SHAPE. BELIVE NOW AFTER REPLACING PLUGS, WIRES DIS.CAP, ROTER,O2S, CAD.CONVERTER,FUEL PUMP .THAT FUEL PRESSURE REGULATOR IS ALSO BAD. THANK YOU ! TECH RAY B.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vette4us@adelphia.net
Date: 26-Sep-05
yes my fuel pumps keep going out had new senor in tank put in new gas tank ,new fuel pump what shall i do need help pplz
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 23-Sep-05
I would like to know what mpg I can expect from a chevy 8.1L vortec engine on a Fourwinds Hurricane workhouse chassis (2003) Can anyone advise Thanks vince
Subject: RE: Chevy Vortec V-8 Gas Engine
From: onick 'at' optonline dot net
Date: 20-Sep-05
I have a 2001 Chevy Van LT with a Vortec engine - 5.7L. I've been adding a quart of oil every 500 miles - there is no leak visible and no white smoke either. There is 48,000 miles on the van, with an extended bumper to bumper warranty. The dealer saw it for the oil problem & the engine check light is on, the code reads 'engine mis-fire' they suggested cleaning the injectors - that didn't stop the engine light, I have a very rough idle. On the second visit for this problem they replaced the distributor system & asked if they can replace 2 fouled spark plugs with me paying. I suggested fouling up of plugs and oil consumption are related, I think the problem is in the plastic intake manifold. Everytime I take it in they try to get to pay for the service that is covered under the warranty. I cheange the oil every 3000 miles at this dealer, they are the only dealer who has worked on this vehicle. Has anyone else had this problem? How was it solved?
Subject: RE: 96 Chevy Making Whinning Noise In 1st & 2nd
From: bammbamm409@hotmail.com
Date: 17-Sep-05
I have a 96 Chevy with a Vortec V8, it just started making a whinning noise in 1st and 2nd gear. What is causing this? I went to two mechanics one said they just need to replace the transmission and the other said he didn't know. We dropped the trans pan and there is a little bit of fine metal in it, but from what I have heard that is ok. I don't have a clue what is causing it to start to whine, if someone could help me that would be great.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: pdawg
Date: 16-Sep-05
Hey all. First post in a while. GM has issues. G-80 sucks. 4L-60 sucks. ABS sensor sucks. The "Knock" sucks. Fuel system sucks. Gas prices suck. Dex-Cool sucks. Flowmaster sucks (at least on gen-III's). Throttle body spacers suck (fuel injecteded engines). Stupid parking brake sucks. My frame rails have a lot of suface rust which sucks. Ive forgotten what else sucks but there are more.
All in all Im still happy with the truck. Power kicks butt. Handles the winters great (-30 and always start on first key turn). Mileage is 16 city/ 19 highway (I have a lead foot). With free mods I hit low 14's in the 1/4 mile. Hauled over 1000 lbs with no problem. Rides like a fullsize car and can take a turn better than stock 69 Z28. While the ABS sucks if the roads are smoot it still stops very well with not much brake fade. The ecm's are very flexable (when I get the cash HP-Tuners is in my future).
It's still a love/hate relationship. Until the next part fails (that will be another post) I will remain faithfull to GM. Even Dodge and Ford (Yea Toyota and Honda are "Perfect" ;) of course) have issues so were not alone. Just drop in 6.0 (hopefully with out any knock) and stick a Radix on it and back it with the 4l-70 or what ever the new 6speed is called and call it a day.
Just want to say that if your posting on this site you probably got problems but your not alone and I wish you luck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 13-Sep-05
where is the cam sensor located at on a 1998 Z71 1/2 ton pickup
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to North of Sixty
Date: 29-Aug-05
Hi North,
I did some looking around for the companies that distributed the Quick Seal... They seem to be closed down. Canada 411, a yahoo search etc with no success.
I will also try a google search for Quick Seal, to see if any other mention is made of the product. Here is a link that may be still alive. Print it so you can ask your parts guy about stocking it. http://www.pennpetrol.com/ppitech/183226.pdf This ia a different package but sounds as good to me.
In the meantime, you will have to settle for the Vegetable based sealant that you should be able to get at a Ford or GM dealer parts counter.
If you are in Canada, go to a Canadian Tire store and have the auto parts guy look up "Quick Seal" on his computer. It was discontined in 2003, but some stores may have it hiding on a shelf if they did not put it on the clearance table.
If you are going to add a leak sealant to the rad, do the right thing and get the red coolant out first (if you are out of warranty... Knowing what I know now, I would be tempted to replace the red coolant frequently (like every two years) rather than wait until the warranty is up.
Take care and good luck.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: North of Sixty
Date: 29-Aug-05
Looked upthe words Quick Seal for leak problem. Didn't see the article. What is it what does it do, any problems with it, where do I get it?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Gary
Date: 27-Aug-05
I have a 1990 motorhome with a 454 in it. I'm having a problem with carbon breaking off and getting stuck in the EGR valve and holding it open. So the engine keeps dying when you come to a stop. Anyone know of a TSB on this or have a fix.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Gary
Date: 27-Aug-05
I have a 1990 motorhome with a 454 in it. I'm having a problem with carbon breaking loose and holding the EGR open. This is a big problem when you come to a stop the the engine keeps dying. Anyone aware of a TSB or a fix for this problem?
Subject: RE: Chevy Vortec V-8 Gas Engine Vegetable sealer)
From: Ron to MisfireMe
Date: 27-Aug-05
Hi MF :)
Have you tried the local ford dealership parts department for the vegetable-based rad/engine leak sealer?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron TO Misfire ME
Date: 27-Aug-05
Use the edit/find in page of your browser to search this huge file for the "Quick Seal"
It should appear as the third search item after I post this.
The address of the supplier and the UPC code is in my post.
Sorry I didn't see your post until now... The entries are quite sparse lately.
Good hunting.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: craig
Date: 23-Aug-05
I havea 1998 gmc 5.0 liter vortec. What can I do to beef it up . I need to go fast quick. Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: At our limit
Date: 22-Aug-05
We have a 1993 Pace Arrow with a Chevy 454 engine which runs fine through the gears on the straightaway. When we climb hills, towing our Jeep, we lose power. On hills we used to climb at 50 MPH, we now go 27 MPH. When we had the vehicle put on a dyno, air/fuel ratio was acceptable until it got to 3000/4000 rpms. Then it dropped off. We've put on new everything we can think of, including mapp sensor and the oxygen sensor, and now no one seems to have any suggestions. It runs like a charm on city streets and highways, but on hills...Nada. We have a Banks System on the vehicle, and at first it ran great. Now...the hill climbing is terrible. It has a Hi flow Cat, Hi Pressure Fuel Pump (in tank) . It now has new spark plugs ( H.D. Marine), new spark plug wires, distributor cap, distributor rotor, in line fuel filter, throttle body. Valve springs were tested (all o.k.). Its been tuned. Checked the timing (28° BTC) Anybody have any suggestions? Ron? frelsa@SBCglobal.net
Subject: RE: Chevy Vortec V-8 Gas Engine
From: misfire me
Date: 19-Aug-05
I am trying to buy the radiator Quick Seal or vegetable based tabs for my radiator. Please post exactly how to get it. When I go to a auto parts shop they look at me like I am crazy when I ask for it.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dave to Ron
Date: 08-Aug-05
Wow! Not that I'm slow or anything! Good suggestion. I do have the work order with all my concerns listed. I will put it in a safe place. Thanks for all your help, Ron. I'm heading for my brothers cottage in Eastern Canada. It is on a nice lake which was stocked many years ago with some kind of Bass. So, I'll think about our conversations whilst spreading the melted butter over my first catch. Have a good one! Dave
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 30-Jul-05
I have been working on small block chevy's for 20 years. I have built several for some muscle cars and definatly know my way around a toolbox and engines. So when my 92' silverado sport needed a rebuild at 150,000 miles I figured why not step up to a L-31 Vortec. Stock 255 HP as opposed to my 210HP. With the MPFI, headers, flowmaster exhaust,heated O2 sensor, 5 speed,Kevlar clutch, 3:42 posi this would really freshen up the truck and put a smile on my face and surprise a few Hemi's.
Unfortunatly it only ran good for a few months. Then it started lugging and surging. MY gas was sugared. Not knowing what damage sugar did except I know it's bad. I changed the filter and hoped for the best. After it running like garbage again I found extreme sand in my filter. Dropped the tank and cleaned the sock. Then got sanded again with metal flakes!! THis is getting old. Locks apparently keep out the honest. The tank was thouroghly inspected. Then the truck started to burbble through the headers really bad when hot, it eat up gas and runs way rich. I spent six weeks working every night eventually replacing: Distributer, sensors, alternator,ignition wires, spark plugs, O2, ect, ect, ect, clean grounds.. Think $2,000 in parts all labor for free and NO FIX!! I also accidentally stumbled onto the fact that the fuel pump would run when the key was on accessory and the directionals were clicked either way. Has anyone heard of that one.? I gave up tired, drained, broke. After visiting three dealerships.
Dealership one: NO scan tool. Try sombody else.
Dealership two: Didn't want to touch it due to possible emissions issues. Give me a break it's legit. They were nice enough to look at it off the record. I did everything he suggested. replace EGR, so on so forth. NO FIX.
Dealership three: They had it for a day and returned it to me with a top end cleaning and computer timed. Also running much worse than before but they assured me it would blow itself out. He suggested I run a new 10 GA. feed from the battery to the fuse box. O.K? Pump issue not fixed either. I e-mailed the FI manufacturer. They said check fuel pressure. A quick fuel pressure test revealed I needed a new fuel pump (AGAIN) and a pressure regulator. Did all that myself and ran a new electric feed line and fusible link. NO FIX!! Brought it back to dealership three. Running with original problem and mentioned fuel pump. They had it two day's and said it's done no charge just take it. What's going on here??? Not to look a gift horse in the mouth I reluctantly took it back. It was running like SHIT still!!!! Fuel pump ran with the directionals!! They used up a full tank of my gas. I'll have to figure it out. I bought a computer scan tool and decided to learn hi-tech fixin!!! Alot of wasted time and money later the computer program showed no problem to my untrained eyes anyway. I bought new injectors. NO FIX!!! I replaced the o2 sensor and plugs for the second time in six weeks. They were fould out again. NO FIX!!!! I got desparate and changed the fuel pump relay, negative battery cable, exhaust gaskets with copper ones. NO FIX!! I ran two cans of GM top end cleaner through the motor to clean it up. NOT FIXED!!!! I had a moment of insanity and cut the exhaust of and sectioned it. Thinking was maybe the cat was plugged or the jerk put something up my tail pipe. NO FIX!!! Installed a new Cat and rewelded exhaust together. Paranoia does strange things to a normally sane person. Then a garage was suggested to me with extremely high regards by a couple people. THey are the most trained private garage within a couple hundred miles. This garage suggested my two week old distributor may be bad and sold me a new one. Come pick it up $525 dollars later. IT was not fixed!!!! They were nice and I dropped it back off the following week. They worked on it on thier nickle for 5 additional weeks. Is this for real? Swapped out the ECM, computer chip, Propane tested for leaks, added a second O2 sensor, replaced my 1 year old MSD coil. The weird part is he said my ECM was listed for a natural gas truck and so did cross references to the GM book. Five weeks later my fuel pump/directional problem is fixed! Original problem is worse than ever!!! Summit says the distributor is good. I'm stuck with $275 bucks for that, Edelbrock just wants me to go away. For a $2000 dollar fuel injection set-up and $500 in injectors, I need help!! The repeated response is check the fuel pressure? GM brushed me off!!! The crate motors 3 year/30,000 mile warranty is actually just a 1 year/12,000 because of installing it in a non-stock application. And honestly it's probably not a warrenty issue anyway. The computer diagnostics company suggested it may be mechanically related. Maybe a bent valve??? My last garage is at it's wits end want nothing to do with it. Everybody blames the aftermarket parts. I'm out around $8,000 total and lost my job. The truck still runs like crap!!!!
Summit -I have been your customer since 1990 and spent tens of thousands of dollars. I remember when the "world speed shops" catalog was a couple pages of homemade looking crap. This is only the second issue I've had with you. The last was when you sent me two different diameter tires back in 1992, What gives????
GM dealership 1- Your comment you dont have a scan tool because it's $3000 and the truck is to old to justify the expense. I have bought 2 new trucks from you. I have seen your demegraphics. I make half of the $60,000 suggested and the payback is after 12 years you do not want to service them. UP yours!!!!
Edelbrock- Teri is nice but the repeated check the fuel pressure response sucks.
GM dealership 2- Thanks for the off the record once over of my truck. But not emission legal? A carburator, aluminum intake, no cat, and race cam could have saved me a couple thousand!! Made way more power! be more receptive to future power parts, still running, and be rebuilt for nothing. What's illegal is the cost of these legal parts and your $80 an hour for shitty service!!!!
GM dealership 3- $80 an hour for service and somehow you blew out my fuel pump and regulator? If I wasn't skilled at dropping the gas tank to replace the pump, you really just created a $600 repair for yourself. And didn't fix either problem I came in with.
Private Garage- six weeks of working on it and no fix??????? Thanks for the rock bottom pricing and weeks of free work but..... NO offense but, NO fFIX!! is still NO FIX!!
GM- Judging by these posts? AT this point I can't figure out if it's the sugar and sand or your peice of shit new motor.
SUgar and sand dude- The cops clearly won't help because it takes to long for me to figure out when you've struck and they keep assuming I'm a dickhead who caused somebody to do this. HELLO!!!!!! The person that did this is the DICK!!!!!!! You cost me $8000 and two years of hell!!Not to mention the hundred's of hours of my time. I'm not sure if your one of the dozens of people asking to buy the truck for cheap now that it has problems (mechanics included) (clearly a reason to not spend your life blood on hot rodding anymore), the scum bags at work who terrorise me. (Why is school bullying clearly wrong but work mobbing is O.K.?) A pissed off Hemi owner? You have kept me up all night for the past 1-1/2 years, you have forced me to quite my job because I couldn't watch my vehicle all day.(you office jerks using this as psycological terror on me all day are either guilty or just sick twisted, cowardly, dirt.) I live with paranoia because It could be my neighbor. Better stop because you don't want me to catch you!!!!!!!!
Any suggestions for a fix????????
Subject: RE: Chevy Vortec V-8 Gas Engine
From: hotrod in trouble
Date: 29-Jul-05
1997 chevy truck 5.7 vortec changed the module no it will not run any help will be nice please
Subject: RE: Chevy Vortec V-8 Gas Engine
From: robert howard
Date: 28-Jul-05
i cannot get plug wires to come off spark plug can you help?
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 28-Jul-05
working on a 1997 chevy vortec had a bad miss under heavy acceleration. dealer said replace module in the distributor . replaced module and now the truck will not run any body help
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to JimB
Date: 23-Jul-05
Hi Jim,
If I were you, I would put some Quick Seal in the rad and see if the slow coolant leak stops happening.
You could cause more trouble by taking it apart again.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 21-Jul-05
how do i get more power from my vortec 350? i have exhuast k&n intake and a throttle body spacer. what else can i do. chevman84 chevman84@msn.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: JimB
Date: 17-Jul-05
Regarding "Quick Seal" this seems too simple, my 2001 GMC Yukon XL is using coolant and requires filling every 250-300 miles. I just did a valve job replacing all gaskets. The heads were in perfect shape -- no warping. Where is this coolant leaking from? The engine has about 70K miles on it. It did have the red dexcool coolant in it. I figure it must be buring the coolant but the spark plugs were in good shape except that the white of the electrode insulators was red but with no build-up. I'm getting ready to take it back apart -- any sugestions?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: no power when i go to accelerate p1345 code on 97
Date: 14-Jul-05
p1345 code on chevy tahoe no power when i try to accelerate need help bad changed timing chain and gear tps cap and rotor drank sesor and sensor in the distributor timing marks dead center when installed email me at BIGZIG77@AOL.COM PLEASE
Subject: RE: Chevy ck 3500 5.7 propane
From:
Date: 13-Jul-05
Subject: RE: Chevy ck 3500 5.7 propane
From: roboroofer
Date: 13-Jul-05
I have failed 4 etests and have a misfire. I've changed cap, rotor, plug wires, iac, tps, catalytic, air filter, egr valve, egr solenoid, map sensor, timing set, mixer cleaned and new gaskets. Any idea what else could make it miss the way it does.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: case emke
Date: 11-Jul-05
hi, we have a 1997 33 ft winnabago motor home with a 454 vortex chev. engine milage 80000 km 53000 m. good milage but a little under power at going up regular mountain roads and hills . e bid of extra power would be nice , any suggestions as to improvement? plugs oil filter muffler short of a costley banks system. thanks case
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Crunch Time
Date: 10-Jul-05
Anyone have a problem with slipping/crunching sounds coming from rear end when pulling out while wheel is turned? 2002 Trailblazer LTZ. Just started doing this and seems like a tooth from gear is missing. Could be brakes, but feels like drive train.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Lizard
Date: 09-Jul-05
Do a text search on this site for "Quick Seal" and you will see what I used to fix my intake manifold leak
You can fix yours this way too... hopefully the problem has not been there so long that the coolant has gotten into the oil
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Liz
Date: 09-Jul-05
More common than you might think.
Do you have about 70 thousand miles on it? Are you still running with the original red coolant? Is there a red muddy sludge under the rad cap and inside the rad?
If so, do a text search on this forum looking for the words, "quick seal" I think you will find a fairly simple solution providing that you have not let the leak get so serious that your oil is contaminated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: bobby
Date: 05-Jul-05
i have an 05 chevy regency rst 4.8 vortec, 2000 miles and the oil pressure drops to zero, anybody experiencing that
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Lizard needs help
Date: 29-Jun-05
I have a vortec 5.3 and Im loosing coolant.
Is this a common prob. or does mine just suck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Lizard needs help
Date: 29-Jun-05
I have a vortec 5.3 and Im loosing coolant.
Is this a common prob. or does mine just suck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Chris
Date: 28-Jun-05
Hi Chris,
A compression test might be the cheapest... then a Cylinder Leak-down test to double check.
Either way, the engine needs to be taken apart regardless of which cylinder.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chris
Date: 28-Jun-05
how can i tell which cylinder head has a crack in it
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 23-Jun-05
i have a 1998 chevy with a 5.7 and i was considering putting electric cooling fans instead of my belt driven fan. does anybody know if it really does improve the power and gas milege? or if it just a waste of money. thank you very much chevman84@msn.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Kly
Date: 20-Jun-05
Hi Kly,
Regarding the liquid sounds in the dash: Make sure that your coolant system is full. air bubbles can cause these noises That can be a sign of a leaking intake manifold gasket or other leakage. If the overflow bottle is always needing to be topped up, you are being warned.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vortectrucker to Ron
Date: 19-Jun-05
Thank yoou for your advice. I checked the motor mounts and the linkage from the shift to the transmission, and everything seems to be in order. I am thinking the squeak IS a U-joint, but I still dont know about the other noise I talked about. Other people have herd it and they say is sounds like liquid trickling thru. it is definetly coming from behind the dash and you only hear it inside the truck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ed edson
Date: 18-Jun-05
I have a 1997 sierra and after putting on an after market cat back exhaust system i found the catalytic converter was rattling. So i went and put on a very expensive high flow catalitic converter and after only six months find that this one is coming down with a similar problem with a very fast vibration around 2000 rpm and sometimes a little rattle at idle. i was wondering if i could do away with the catalitic converter all togeter without sacraficing fuel mileage or having my check engine light on. does anyone out there have a vortec engine with out a cat? any help would be appreciated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: klystron59
Date: 18-Jun-05
Ron,
Thanks for the reply. I order the MS 89000T today in lieu of the MS 90301.... Not available in Colorado Springs or Denver. The auto zone I am using will have T or W.
I'll check w/the dealer for the manifold bolts, I think that is a good tip. The bolt in position eight has signs od corrossion at the thread to stock sections.
No rely much corrosion where the manifold gasket seats. I havent't read enough to sitch from the read antifreeze. I bought the car used w/high mileage an zero known maintenance history. I plan on sending through a good flush and periodic flush the system more often than in the past.
I wrestled w/the idler pulley this am w/zero head way. I was however able to get enough play out of the bracket that the manifold will drop straight down w/zero sliding back and forth.
I will say that idler pulley is on good. I used a big strap wrench, 3/8 allen and 18 inches of encouragement, leverage pipe and the allen bolt in the center of the didn't give whether I went CW or CCW. I strongly beliieve it should come off because under the pulley is two bolts I loosened to earn some ac bracket give.
I appreciate your reply. Thanks for the encouragement and yes I use the the principle to step back and have a beer when the frustration meter starts to peg.
I'll keep you posted my success. In the mean time I purchased all the usual part and will enjoy fathers day putting them in will there is some significant working space.
Have a good fathers day
Mark
klystron59@yahoo.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Mark
Date: 18-Jun-05
Hi Mark,
That is the gasket I was thinking about. Was there much corrosion on the manifold where the gasket sits? Do you still intend to use the red coolant?
The manifold bolts are what I was refering to. The dealer should have the replacement type and the service bulletin that suggests they be replaced with the improved version. It was about a year ago that I saw it mentioned. There may have been some special washers as well.
Good luck with the pulleys and brackets. Unlike me, you have the real McCoy to work with..
Try not to have too many parts left over, eh? .. ;>)
Remember... when something is too difficult, it is time for a beer.
Subject: Advice to remove the fan and AC bracket
From: klystron59
Date: 17-Jun-05
Ron,
Thanks for the reply on 14 Jun. I did pull the manifold. The machine shop removed the snapped nipple and installed new fitting for 20 dollars. Terrific break
I am starting to re-install every thing. May I ask you a few questions?
1. The different bolts, I assume you mean manifold bolts?
2. Like TJmiller, back on the 29 Sep 03 message, I am having trouble wrestling with the ac mounting bracket. I am open for suggestions explaining how to remove it?
We have a 99 tahoe and the AC unit is on the right. On the bottom of the bracket is an idler pulley for the cerpatee belt. I will appreciate any tips how to remove the pulley and or bracket? I think the pulley must come off in order for the bracket mounting bolts to be exposed.....
3. What is the combination to remove the fan? Auto zone tool, loaner is for ford 150's, it is the C wrench and spanner wrench to go over the fan pulley mounting bolts. It doesn't work on GM. I thought it might (did a water pump job on my 86 150, what a time saver) I'd like to get the fan off for work space and I am fearful maybe the H2O Pump is bad or leaking....
I welcome all suggestions. Thanks for the gasket tip MS9800t from feltpro. It was a 10 Mar 05 message, is that the gasket you are referencing?
Mark Klystron59@yahoo.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to BHavil
Date: 17-Jun-05
Hi B,
Have you had your engine scanned for codes?
An intake manifold leak can cause such symptoms. If you can get the truck running, a mechanic can use a propane gas source to flood the manifold area to see if the engine sucks the gas through the leak, resulting in big changes in idle speed..
Right now, your Mass Air Sensor is likely giving the engine the signal that there is enough air coming through the throttle body, when in actuality, the engine is getting additional air through the manifold leak which causes a higher RPM with far less power behind it. Did the truck actually stall or backfire when you tried to accelerate?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: bhavil2581@yahoo.com
Date: 16-Jun-05
I have 1996 chevy 1/2 ton 305 vortec It started out when you got into the gas it would hesitate now it will not even start. Has a new fuel pump, fuel filter, cap, rotor and a new coil. any iddeas on what is causing the problem? please e-mail me if got any idea cause im out of them.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to vortectrucker
Date: 15-Jun-05
Hi,
Have you looked at your motor mounts to make sure that they are firm and not alowing too much engine movement? The only thing that goes against this theory is, A motor mount would usually make more noise the harder you stepped on it.
If metal touches metal or if there is any engine part which can touch the frame when you accelerate, that needs to be corrected. Transmission shift linkages can also cause a bit of a rumble when the engine moves around, so make sure that there are no loose connections in the linkage. A transmission shop would be able to help you rule this out. Just don't let them tell you it is going to be fixed when you replace the transmission. :(
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vortectrucker@yahoo.com
Date: 14-Jun-05
I forgot to mention that the truck has 86,500 miles on it and Ive taken real good care of it. From the looks of it the last owner did too. I think that thered be less problems with the Vortecs if peopler took real good care of them from the beginning and used top quality parts and fluids.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vortectrucker@yahoo.com
Date: 14-Jun-05
I've got a 99 Sierra w/ a 5.3L Vortec motor. The vortec is a great motor with a great trans behind it despite its flaws. Ive had the knock problem on cold mornings and it only lasts a few minutes then it runs like a champ and Im gonna try putting Mobil 1 synthetic in. Im want to know if anyone can help me wwith a noise Im having. The truck squeaks when I back up, but only when Im doing it slowly. Theres also a little bit of a squeek when Im goin foreard too. I want to know if anybody else has this or knows what the hell it is, other than a possible blown u-joint. Thers also another question Ive got but it has nothin to do with the sqeeek. When I give it gas on a hill I hear a noise from the engine. Its not a knock or a tick, but a it sounds like marbles rolin around on a peice of wood What is it? it only does it when I accelerate and does it more when its been running hot w/ the A.C. on. please respond to my email
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 14-Jun-05
Hi Klystron,
The "easy out" will do the trick to remive the heater connector in the manifold.
The big question is whetehr you will still have to remove the manifold in 6 months to fix a leaking intake manifold gasket.
If you have not changed the red coolant to green, and have about 50K miles on the truck, it is better to not risk a blown engine or a seized/broken camshaft. Take th emanifold off and save future grief. Also ask the dealer about the new replacement bolts that are better able to cope with the movement of different metals when they are heated and cooled. There is also a vegetable based sealer which should be added to the rad when you are done.. They use it at the factory to ensure no leaks in the compound and dealer dealer lots.
If you look back in this list a few weeks, you will see an article about a new and improved intake manifold gasket that does NOT have a plastic liner which can separate. That is the gasket you want bcause it can not shrink and break.
Goodwrenches to you
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: wjb36
Date: 12-Jun-05
You can get an easy out made just for the job from the local tool supplier ,Snap-On ,Mac, etc.
Subject: Snapped heater line adapter from intake manifold
From: klystron59
Date: 11-Jun-05
Hello All, I stumbled onto you site tonight while I am looking for an intake manifold for a 99 tahoe. I am suprised to see the number of people out there w/the same leaking antifreee problem. I my case there is a little additional twist. The heater core line near the thermostat housing snapped. The treaded adapter betweem the intake mainifold and line corroded and snapped. Threads are still in the manifold. There isn't a big enough easy out to back out the corroded threads. So, I'm pulling the manifold and shopping for replacement or will see if a machine shop can push the threads through in the manifold through the inside out. Prior to this exercise I havce been noticing a cooling leak behind the passenger tire. drip, drip, drip. It sound to what your are all describing. With the drip down teh back of teh truck I am wondering is it safe to say it's not by any chance water pump. I haven't seen any comments to indicate it could be the pump. With teh fron of the engine compartment I would like to take care of any suspect characters while I'm on this job.
Is there any new tips to pass allong. I've just disconnected the gas lines and am preparing to remove the throttle body. I just bought the 10 mm DW socket this afternoon and will hopefully have teh TBI off in an hour and teh manifold off w/i and hour after that.
Did past mechanics disconnect all harness connections, or just disconnected enought to work the TBI off? I saw in one of the other comments on that web site the dealer quoted 700. That's steep for my blood right now. I welcome any additional tips. Mark Colorado Springs CO
Subject: Snapped heater line adapter from intake manifold
From: klystron59
Date: 11-Jun-05
Hello All, I stumbled onto you site tonight while I am looking for an intake manifold for a 99 tahoe. I am suprised to see the number of people out there w/the same leaking antifreee problem. I my case there is a little additional twist. The heater core line near the thermostat housing snapped. The treaded adapter betweem the intake mainifold and line corroded and snapped. Threads are still in the manifold. There isn't a big enough easy out to back out the corroded threads. So, I'm pulling the manifold and shopping for replacement or will see if a machine shop can push the threads through in the manifold through the inside out. Prior to this exercise I havce been noticing a cooling leak behind the passenger tire. drip, drip, drip. It sound to what your are all describing. With the drip down teh back of teh truck I am wondering is it safe to say it's not by any chance water pump. I haven't seen any comments to indicate it could be the pump. With teh fron of the engine compartment I would like to take care of any suspect characters while I'm on this job.
Is there any new tips to pass allong. I've just disconnected the gas lines and am preparing to remove the throttle body. I just bought the 10 mm DW socket this afternoon and will hopefully have teh TBI off in an hour and teh manifold off w/i and hour after that.
Did past mechanics disconnect all harness connections, or just disconnected enought to work the TBI off? I saw in one of the other comments on that web site the dealer quoted 700. That's steep for my blood right now. I welcome any additional tips. Mark Colorado Springs CO
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to all
Date: 11-Jun-05
HI (Ron and Others)
Could it be that people who are looking to buy are not doing any homework BEFORE they do so?
All vehicles have their own list of problems, but we would rather spend hours reading about which digital camera or MP3 player is the best buy or quality.
We deserve what we get if we don't research.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Dave
Date: 11-Jun-05
Hi Dave,
Did your work order list your complaints and will it be enough to prove that you notice something was wrong while you are still under warranty?
If you can get them to put in writing that your complaints are NOT A PROBLEM and to put in writing that you will be covered if it causes engine failure after the waranty is over that would be a bit of insurance... Of course, you could always get the extended warranty ASAO to put the ball back in their court.
If you are getting valve noise and piston slap on start-up, ask about a replacement oil filter that prevents oil from draining back into the crankcase. It could be what you need.
Enjoy.. Your next vehicle could be a Prius :(
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron and others
Date: 08-Jun-05
Did anyone notice how many letters there are regarding the General Motors VORTEC motors?? Why do people still buy them?? Why hasn't GM done something to curtail these problems........sorry I mean "rumours" Or are they really that big? Hmmmmmmmmm, I guess they don't have to be concerned. Oh, well..........C'est La Vi. Dave
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dave to Ron
Date: 08-Jun-05
Hi, Ron. Well I took my Sierra with 6l Vortec in and they did a diagnostic, did a tune up,plugs etc, cost me $420 CDN and guess what..............miss is still there although not as bad, they found nothing to be concerned about regarding the clunk.........are these people deaf??? The "lifter noise at start up is normal" and the knock is normal for a high compression 300+ HP engine. They say everything is normal and will not affect engine reliability. Sooooooooooo...I guess I do what one of the other fellas mentioned, turn the radio up a bit louder and that way you won't hear the ominous engine noises. The anti-freeze is the redish type but they say it is only like...........food colouring. What can I say? I guess I'll just drive it 'till it drops and switch to that Dodge 2500 in a couple of years. Thanks for your input Ron. It is nice to read letters from some one who is machancally competant. NOW, I can load the camper and go fishing!! Dave
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Low
Date: 04-Jun-05
Hi Low,
If you did not have this vehicle from new, who knows what happened to it before your got it? Did this problem begin after some repairs, or was it fine and suddenly started doing this?
Is it possible that your oil pan was removed for some reason in the past and maybe the wrong pan was put on?
There has to be some reason why the pump is sucking air when you are on a hill.
It is also possible that your dipstick is going down too far and getting an incorrect reading.. (Might be the wrong dipstick) You might be underfilling the required to keep the dipstick looking like it is at the right level. That is not good. When you put in the right number of quarts, does the dipstick show too-high an oil level?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: low oil pressure
Date: 04-Jun-05
I have a 94 chevy 1/2 ton 4x4 5.7 v-8 which is losing
oil pressure. when I rev the engine the oil pressure drops dramatically. I pull boats and lose so much power going up hills, anyone with information on this problem please let me know asap, I do boat repair and need my truck to pull the boats. thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: low oil pressure
Date: 04-Jun-05
I have a 94 chevy 1/2 ton 4x4 5.7 v-8 which is losing oil pressure. when I rev the engine the oil pressure drops dramatically. I pull boats and lose so much power going up hills, anyone with information on this problem please let me know asap, I do boat repair and need my truck to pull the boats. thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 01-Jun-05
i already have exhaust and a cold air kit? i have a 3" spintech exhaust and a k&n kit. what else would be an upgrade? would headers make a difference? i have a throttle body spacer and underdrive pulleys.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevyman84
Date: 01-Jun-05
Intake and exhaust is the best bolt on performance. breathe in breathe out.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 31-May-05
what is the best bolt on performance add to a 98 vortec 5.7? i need a little bit more pulling power.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Steve
Date: 28-May-05
Hi Steve,
If your vehicle uses a similar system to the 3.8 V6... the coil packs mount on a plate that is called the spark control module. Two cylinders fire at the the same time for simplicity with no problem.. One on the exhaust stroke and the other on the compression stroke
If the same two cylinders are still not firing no matter which coil you use there, they are fed by a single coil pack. That spark control module will cost you at least $120 US... or more for OE
Subject: RE: Chevy Vortec V-8 Gas Engine
From: oscar the goodguy
Date: 28-May-05
HBuy yourself a Dodge and then you can spend your Saturdays fishing with the kids while your neighbor works on his GMC and laughs at your other neighbor whose Ford had to be towed home again. Gee ain't it amazing how many word I got in one sentenece and all spelled correctly. Not bad for a Yankee.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: stevefurby94@hotmail.com
Date: 27-May-05
1999 Gmc 5.3L Not firing on the #2 and #3 cylinders. Changed the coil packs, and the crank shaft positioning sensor. Along with plugs and wires. Still no spark. Checked all fuses and even checked to see if maybe got defective parts. Nothing need some help.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: stevefurby94@hotmail.com
Date: 27-May-05
1999 Gmc 5.3L Not firing on the #2 and #3 cylinders. Changed the coil packs, and the crank shaft positioning sensor. Along with plugs and wires. Still no spark. Checked all fuses and even checked to see if maybe got defective parts. Nothing need some help.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 25-May-05
HEY LARRY TO ME IT SOUND LIKE THE HEATER HOSE FITTING THAT GOES INTO THE INTAKE MANIFOLD, OR THE FITTING TO THE THRMOSTAT BYPASS HOSE THAT GOES INTO THE WATER PUMP. THEY ARE FAMOUS FOR LEAKING THEY ARE A QUICK EASY FIX. BUT IT ALSO COULD BE A LEAKY INTAKE GASKET. BUT LETS HOPE IT ISNT THE GASKET BECAUSE THEY ARE A PAIN IN THE @$$. BUT THERE ARE A FEW SUGESTIONS. chevman84@msn.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Larry
Date: 25-May-05
I have a 2000 motorhome with the 7.4L engine. It has22,000 miles and is less than 5 years service. The last two days there has been what appears to be coolant dripping from the frame in between the front tires. Anyone have any ideas to the problem???
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 22-May-05
Hi Dave,
If you still have the red coolant in your truck, I would be one of many to tell you to get it out and put in the green stuff.
Also add some Quickseal to the rad to make sure that future problems don't suddenly appear.
On interesting test you can easily do on your coolant to check for corrosion problems.... is to open the rad cap and use a digital ohm meter to check the resistance of the coolant.
If you connect one testlead to the block or other convenient bare screw and then touch the liquid in the rad with the other testlead, you should have a very high resistance showing or almost infinity (a few meghoms).
If the coolant is dirty and contaminated with rust, the resistance may be as low as a few hundred-thousand ohms. Compare this measurement to what you see in another vehicle with newer or different coolant... if you doubt a connection between corrosion and coolant cleanliness.
Fish ON!!! ;>)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dave to Ron
Date: 20-May-05
Sorry Ron, I didn't answer your main question! No, there has been no coolant loss and there doesn't appear to be any in the oil. Good suggestion though!!. Thanks. My truck goes in May 10 for the 'big' check up. Now, time for some fishin'. Good health to you. Dave
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 18-May-05
any body know where i can find a 3.4 vortec crankshaft for my lowrider??? emaile me at www.dhssoftballchic2007@yahoo.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dave to Ron
Date: 18-May-05
Thanks for the help, Ron. I will have that checked out at the GMC Dealer here and have them check for any service letter or "hidden warranties". I had a 460 (Ford) that had a similar problem and it turned out to be the rocker pivot wearing through the rocker arm. I replaced the rocker myself for about 20 bucks and a greasy afternoon only to find out a year later that 'good old' Henry Ford had an oil delivery problem on this model of 460 to the 4/6 cylinder valve train assembly resulting in possible failure of rocker arm/pivot/spring assembly, covered by a service letter. I had it in to the dealer to check and of course they only gave me a repair estimate. Ohhhhhhhhhhhhh, those hidden service letters. I immediately switched to Dodge (should have stayed there)for two vehicles, that was 7 years trouble free driving, I noticed one of the GMC dealers had a special clearout of trucks, did the deal and 94k later "tick tick".
Any way, Ron, thanks for the suggestion I'll follow it through. I'll post the results in a bit. time to load the camper and head for the hills! Dave
Subject: RE: Chevy Vortec V-8 Gas Engine
From: SJ
Date: 16-May-05
I have a 99 with the 5.3 that starts good when it is cold but cranks 4-5 seconds before it starts when it is warmed up. any help appreciated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 16-May-05
hey i have a 98 z71 and i have a 3" spintech catback exhuast with doug thorley headers, i also have a k&n cold air kit, a helix throttle body spacer and i have also had a local performance shop reprogram my computer, and i also have underdrive pulleys on my truck. i think my truck runs great. i am very happy with my truck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jonathon
Date: 15-May-05
ive got a 98 z71 and im looking for the perfect exhaust and k&n air filter kit for my truck. give me some ideas plz. all ideas will be appriciated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 14-May-05
I have a Chevy Vortex, fuel injected, 375 hp inmy boat. Sometimes, when it gets warm...it won't start or it will start but won't respond to throttle. When I let it cools down completely, it will start and run fine. Idling definately lead to this problem.
I need some ideas, pls.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Dave
Date: 10-May-05
Hi dave,
Your valve noise may be due to coolant contamination of your oil... This can be tested to be sure. Do it soon, (before your next oil change.)
Have you noticed any coolant loss, had to top up the reservoir every few months? This is NOT NORMAL and can signal a leaking intake manifold gasket.
This will cause misfiring on start-up, unneven idle, sometimes a smell of antifreeze at the tailpipe at startup... In serious cases, hydrolock can occur when trying to start the vehicle. It can cause damage to the connecting rod, cylinder head etc as the piston comes up to meet a solid wall of coolant.
If you go to Canadian Tire and pick up a little plastic bottle of "Quick Seal" you can stop the intake manifold leak in minutes. The tiny brass particles in the QuickSeal circulate in the coolant and plug any tiny leaks into the intake manifold space or head gasket or frost plugs. You don't have to drain the system or replace the coolant if it is fairly new and uncontaminated... If your vehicle is NOT under warranty anymore, I would also suggest getting the red Dexcool out of your system. It is not a lifetime coolant. It does delay diagnosis of a leak because you are told to leave it in until long after the warranty expires. The manufacturer does install a leak sealant (vegetable based) at the factory. They do not tell you about this. If you change coolant, be sure to put back a similar acting permanent sealant. The Quickseal is sufficient to seal about three vehicles, so don't dump the whole bottle into the rad. You notice that I said RAD. Do not pour it into the overflow bottle because it will never get into the rad from there. Just shake the bottle well and pour about 1/3 into your rad. Keep the remainder in your trunk or glovebox for possible future leaks or to help a stranded motorist with a manifold leak.
If all goes well, your misfire will be gone in a short time and you may never have to add coolant again. You may even lean to like your GM again.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dave D.
Date: 07-May-05
I have a 2002 GMC Sierra with Vortec 6litre which has only 61,000 miles on it. It has one bad lifter noise on warm up regardless of outside temperature and seems to developed a "lope" in the exhaust sound at idle. Also there appears to be a heavy clunk when cold 9when shifting into either reverse or drive)which I have found coming from the transfer case like gear 'take up'. When it idles down, the "clunk" is very slight but still there. Should I be concerned, overly, or is this normal for GMC. When I bougght it for $43,000 Canadain I was told GMC is probably the best name in 3/4 tons. I'm starting to look at those new Dodge 2500's. I also have that annoying 'miss' on idle. Lotta stuff here. Should I do the repairs? Or "make the switch "..............HELP! The dealer is of course of absolutely no help. Thanks, Dave
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Hi, guys.
Date: 07-May-05
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mech.matt
Date: 05-May-05
for everyone who is having a single bank proble.,ie-misfire low power runs rough - with no explanation, they put dual cataletic convertors and sometimes one of them will have a tendacy to plug up. Note this can also cause knocking and pinging.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Shawn
Date: 04-May-05
I have a 98 Chev 2500HD Vortech 5.7 4x4 with 91,000 miles on it. I bought the truck when it had 36,000 on it and it still runs as well as the day i bought it. The previous owner was an older man and had it serviced every 3000miles. He documented everything and made sure that the Dealer sighned all the service times. Since i have bought the truck I have done all the servicing myself as i do not trust anyone working on my vehicals unless im standing there watching. From the day I bought the truck I have used 10/30 Castrol Syntech. Ive experienced the Knock you all are talking about only once and It was in the morning in -12 degree weather in Spokane Washington. The Knocking sound was very faint and went away after about 5min. I havent ever heard it again. I have a slight leak coming from my heater hose connection on the intake but im not worried. Easy fix when i get home from the other side of the world. I recomend these things to anyone interested: 1. replace your stock Rocker Arms with Cran Cams 1.6 or 1.7 stamped roller rocker arms. It increases Valve lift and alows the engine to breath way better!!! 2. Have the exhaust replaced from the cats back to true dool pipes, also alowing better engine breathing. 3.Synthetic oil is the best bet for obvious resons. I swear by Castrol as a mechanic myself and my father a mechanic for 30 years swears by it as well. Although he isnt a big spender of the synthetics. 4. Replace your oil filter with K&N's Oil filter it has a valve that prevents the oil from draining back on shut down thus preventing a dry startup and knocking. 5. K&N air filter element, to go along with the other engine breathing mods. That one is self explanitory. 6. Buy a throttle body spacer, they improve milage, HP, torque, I didnt think it would but i was amazed! 7. Use Boch platinum +4 spark plugs! you can use these on this engine there isnt anything saying you cant except some people on here that think they know what they are talking about. The improve milage, cold starting (i should know) torque and HP. Dyno it if you dont believe me! They are spendy but worth it! 8. Headers! self explanitory! 9. Change the timing chain to a double roller! 10. Clean your throttle body, use carb cleaner and a tooth brush or acid brush. 11. this is going to sound wierd to most of you but its a really old trick to get rid of carbon in the engine and its cheep! get a 1 gallon jug and fill it with water, insert a long piece of vacume hose into the jug and connect it to a vacume port on the intake of your engine. There isnt many on this year truck so you will just have to ind one that fits. start your truck and run it at 3000-3500 rpm's untill the water has been compleatly drained from the jug. your truck will blow steam and smoke like you have never seen before and it will spit and sputter even at 3000rpms but rest assured your engine will be nice and clean inside. However when the water is gone let it idle for 10-15min to get those cyl walls nice and lubed up again with the synthetic oil. This will alow any of the synthetic properies (teflon) that was removed from the cyl walls to re-bond. DO NOT!!!! repeat this again for a few months!!! It can wash the cyl walls and cause damage if done improperly or often. I only do mine 2 times a year and thats plenty. There is no mirical cure for all the problems that everyone is having. These things happen mechanical problems are always going to come up as long as the world still turns. I have been a mechanic all my life and i am currantly a Flying Crew Chief in the Air Force. I maintain 40 year old jets, you want to see problems come to work with me for a day! thats all i can think of for now but if you just try those simple things im sure you will not be sorry!
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 30-Apr-05
Hi Kim,
Why not keep the 88 Burb? At least you know its' foibles.
If you do want a new vehicle, why not get a diesel?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 30-Apr-05
Hi Jerimiah,
You have taken troubleshooting to an art.
Good that you did the cylinder leakdown test on cylinder #1 but what about the others?
Also, you did not mention looking in the rad for air bubbles or watching for an increase in rad pressure with a pressure guage.
Subject: 5.7 severe misfire...
From: jeremiahrabe@hotmail.com
Date: 27-Apr-05
I am working on a 96 yukon w/ a 5.7 vortech. The truck developed a hesitation and we found the distributor was bad. The problem went away for a couple weeks, then returned. The 'reman' dist we had put in had gone bad. 2nd one has been good since (hasn't thrown a code and gives a nice waveform on an osciloscope.) Ignition wires were jumping to the exhaust manifold heat shields so those got replaced. The new set of wires went bad and there is a new set on it again. The new parts are: a new coil, coil driver, cap 'n rotor, plugs, crank trigger pickup, injectors, lifters, Intake manifold gaskets (all,) head gaskets, and valve seals. I have OBD-2 for a laptop, the only code the POS GM computer throws is multiple cylinder misfire. I'd like to take a moment to thank the morons who decided that was an acceptable code to throw for a vehicle that is completely undrivable. Diuuuaah, why did they go to OBD in the first place? The OBD-2 program actually shows a ton of stuff as far as whats going on with the fuel/ignition system. It shows that bank 1 is adding 50% fuel to make up for a lean condition. (where obviously the problem is.) Bank 2 adds about 7-8% to make up for a lean condition, (which i assume is normal.) It also shows the MAF is seeing 2.2lbs a minute at idle, I have no idea what is normal for these. It seems like there are 2 injectors in bank 1 (drivers side i'd assume) that are plugged? They are ALL bosch reman injectors that supposively go through a billion tests before they go out... So i doubt they are bad but i will check these tomorrow. I'd assume they are connected electronicly, Maybe its dumb to assume the computer would notice something sensible like that. I put a timing light on each plug wire to make sure they were being fired. All cylinders were very steady, i didn't see any evidence of cross firing. I decided to do a test to see if the intake manifold was leaking. I put the leakdown tester in cyl #1 on the intake stroke (feeds the air into the intake) and i capped the throttle body. I put ~3psi in. I sprayed soapy water around the Intake manifold at all sealing areas. NO bubbles anywhere. I also plugged the crankcase to see if it was leaking into there. None. So i'm so lost right now as to what is going on. I have about 20 hours into this and i can't think of many more things to test. I am going to check the crank trigger signal with an osciloscope tomorrow, but with rock solid timing i doubt this is funky.
So, anyone have any ideas for me? Please reply to jeremiahrabe@hotmail.com Thanks in advance.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: votec V8 rough idle & misfire
Date: 26-Apr-05
Replace Vortec rail kit fuel injectors assembly with presure regulator $380. This fixed fuel pump problems and hesitation on heavy loading with quick speed increases. Injector cleaner did not help. Also had a problem with rough idle,misfire, highspeed backfire 60-75mph if your cap and rotor,coil, EGR is ok, disconnect crank sensor wire then pull it up from the top and look along and around the wire for melted sections from Exhaust manifold it happend to me and found it myself. a bad crank sensor wire. Leave e-mail address at the end of your message so all of us can Help You! max00711@yahoo.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: votec responce
Date: 26-Apr-05
Leave e-mail address at the end of your message so all of us can Help You!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 26-Apr-05
i was wondering if anyone has delt with the after market torsion keys? i have a 98 and i am thinking of buying one of these torsion key kits to rase the overall hight of my truck 1" to 2" taller the kit includes the torsion keys and a 2" lift block with u-bolts for the rear end. i was wondering if anybody has delt with these? are they a waste of money? or are they worth it to lift my truck about 2"? thank you Tel Bolinder chevman84@msn.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 98 chev silverado
Date: 24-Apr-05
My 98 Chev Silverado with 5.7 engine has an after market remote start, when I use the remote start strange things happen, all associated with the vehicles electronics, door locks engage without using door lock buttons, transmission shifting screws up, etc, turning off the ignition and waitting a few min cures the problem, I quit using the remote start and no more problems except antifreeze problems. other than that, I like my truck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 20-Apr-05
As of today April 20th 2005 what is the general opinion on the quality of the 8.1 Vortec?
Does it still have piston slap issues or is that fixed?
Can anyone say something good about it?
I have an 88 Suburban with 454 that still runs great and I am thinking of buying a brand new one with 8.1 vortec.
I am real interested to know.
kim.reed@sympatico.ca
Subject: RE: Chevy Vortec V-8 Gas Engine
From: max00711@yahoo.com
Date: 20-Apr-05
Replace Vortec rail kit fuel injectors assembly with presure regulator. This fixed fuel pump problems and hesitation on heavy loading with quick speed increases. Injector cleaner did not help. Also had a problem with highspeed backfire 60-75mph if your cap and rotor,coil, EGR is ok, disconnect crank sensor wire then pull it up from the top and look along and around the wire for melted sections from Exhaust manifold it happend to me and found it myself. a bad crank sensor wire.
Subject: RE: Chevy Vortec 6.0 V-8 Gas Engine
From: ex-ford
Date: 03-Apr-05
2003 1500 hd 4x4 6.0 losing coolant (internal) compression good on all cyl. i have read some comments on intake gasket leaking on vortec's. does this also apply to the 6.0? dealeships are giving me a bad run around on this. any body having problems with steering shafts? have had one put on wife's tahoe now the hd needs one. been told about a lub kit for the shaft....any truth any help????????
Subject: RE: Chevy Vortec V-8 Gas Engine
From: i need help
Date: 01-Apr-05
ok heres how it happen. i have a 1994 chev blazer with a vortex eng.was driving down the highway at 60 miles a hour blazer started cutting out and died....after sitting there for 1 hour with NO ONE stopping to help i tryed to start it and it started (after trying for 15 mins) drove it 3 miles and it quit again...Now after being towed back to a garage....Had new fuel pump and fuel filer put on...Blazer would start and run but it you gased it to much it would cut out....Put it on a computer to see what was wrong with it....the computer says its fine....drove it 3 miles about never got it home after it warmed up.....NOW IT WONT START....Can anybody help me PLEASE>>>>every garage in my area is stummped about this problem.The last place has had my blazer for a week with no help...e-mail me at green_eyes_322002@yahoo.com if you can help...Thank you
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 30-Mar-05
i was wondering if anybody out there has delt with headers on a 350 vortec? i am looking to put headers on but i am not sure if it is worth $800.00 or not. and i am also not sure what brand of headers to do? right now i am looking at jba and doug thorley. is there better headers for the money or what is the best header? and will i really get that great of power difference? please let me know. thank you
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 29-Mar-05
has anybody delt with headers? on a vortec 350? i am looking to put headers on my 98 but am not sure if it is worth $800.00 or not. I am considering doug thorley but am also not sure what brand is the best? thank you
Subject: RE: Chevy Vortec V-8 Gas Engine
From: hotrodder a hudson.net
Date: 27-Mar-05
i have a 2001 gmc sierra 4.8v8. i have what sounds like lifter noise , not only on startup but even louder when hot . my dealer says it is the polution system making the noise. i recently changed plugs and it stopped for about 20 min. this truck has 23k, was purchased new and has never been abused. i recently purchased a 2005 silverado 5.3L 4x4 and no noise. is it possible the egr system is causing the problem? can it be removed?i took this truck new from the dealer and spent $25,000.00 turning it into a show truck .looks great if you don't start it,then it's a nice truck CLACK,CLACK,CLACK, maybe time to try a ford.
Subject: RE: Chevy Vortec V-8 Gas Engine COLD KNOCK REMEDY
From:
Date: 25-Mar-05
Hi All,
Here is a link which was posted before. Maybe it will help some with the noises that are so troublesome..
http://www.baldwinfilter.com/engineer/94_3.html
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron TO Jenny
Date: 25-Mar-05
Hi Jenny,
Some vehicles do have service interval timers for oil changes. Have you read your owners' manual?
What kind of mileage have you put on the 4X4 since you got it?
The idiot lights and computer can give you false messages if your chassis and body grounds are loose or corroded.. The instrument panel also has grounding straps which can work loose especially if somone had to take it apart to add a new sound system. If a lot of indicators are messing up, it is likely due to ONE problem. When did this all start? The batery may be fine, but the ground cable may be corroded or loose.
Don't believe a shop which insists it is an expensive fix until they rule out the simple things first. Give them an hour maximum to tell you what the problem is. Never let the money-clock run while they throw parts at it.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 128KINse
Date: 22-Mar-05
Sorry I posted the same basic message 3 times about $900 sticky injectors. Discussions in this group are not being listed chronologically when I visit the website, so i re-posted. (Alias: power-restored; alias 114KinSE)
Subject: RE: Chevy Vortec V-8 Gas Engine
From: power-restored
Date: 22-Mar-05
Paid Chevy dealer $900 to replace two sticky Vortec fuel injectors. This fixed backfire and hesitation on heavy loading with quick speed increases. Injector cleaner did not help. Also, I added radiator stop leak frm NAPA almost a year ago to DEXCOOL and no coolant has leaked out since. If you ever change your water pump or coolant, stop leak is a MUST when re-filling system coolant. And also, if your engine won't start in cold because fuel pump is not running, but runs later after temp rises, you may as well change your pump cause it keeps happening - most stores will sell you the entire pump assembly for $350 but its just the motor part thats bad and motor can be purchased separately says a Advance-Auto salesman. I replaced the whole pump assembly, took most all day.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 128KinSE
Date: 18-Mar-05
1998 7.4L vortec: Loss of power and backfire on heavy acceleration was fixed by dealer for $900, they replaced two fuel injectors that were sticking. Injector cleaner did not help. (Also, the gray bottle of radiator stop leak purchased from NAPA fixed my coolant loss problem, its been 9 months and no coolant has leaked out.)
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 115KinSE
Date: 16-Mar-05
Rough idle and loss of power in my 1998 7.4L Vortec was sticky injectors. Injector cleaner did not help. Finally took it to dealer. They replaced two injectors and charged me $900, But that fixed the loss of power and backfire during heavy acceleration. (side note, The gray plastic bottle of radiator stop leak purchased from NAPA about a year ago is still working great even with DEXCOOL. No coolant has been added for a year.)
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 14-Mar-05
Ive been shopping around for a 92 - 98 Z71 and am quite surprised to learn that GM has unleased a mechanical asshole on the public with this vortec engine. I have two trucks now from the good old days a 1978 silverado 305 with 535,000 miles on it and a 1979 silverado camper special 454 with only 90,000 miles on it both are as tough as a D11 cat. My question is if i found a decent Z71 with a blown mechanical asshole vortec , could i swap in a good old boy carburated 350. Im mainly wondering about bolt patterns on the trans, ring gear compatabilty and engine mounts. Or maybe i should just locate a low mile 70,s silverado to replace my old truck and avoid all that electronic crap altogether, I mean think about this really ,when an HEI goes out I get out the whole entire spare distributer i got from a wrecker for $50 , unplug 1 (one) wire drop her in and away i go. Fuel pumps are right there in the open etc. But the plush ride of a Z71 with a 70,s style eng has got me wondering. Anyone done this swap?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 13-Mar-05
Hi David,
Thanks for the heads-up
I wonder if the manufacturer will ever make this gasket standard equipment, or will fear of admitting it was their fault all along prevent them from doing so.
I hope that everyone knows that this forum can be searched with your edit / find function. There is a lot of good info here if you search the right words.
It saves a lot of reading when you use the "find" feature.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: David H
Date: 10-Mar-05
For all you leaking intake manifold gasket owners... Fel Pro has recently come out with a new design for the gasket that is supposed to eliminate the leaks for good. Part # is MS98000T, replaces the OEM style gasket MS90131. The main difference is the carrier is metal, instead of plastic. The original style gasket is a 1/8" thick piece of plastic with 2 rubber seals (1 per side) that are inserted into a channel on each side. The problem is the plactic carrier cracks, and coolant leaks through the crack, even though the two rubber sealing surfaces are still intact, and sealing. Info. on this new gasket can be found at http://www.heffs.net/ This gasket has only been out a couple of months, it may not be locally available in your area yet. My guess is that if your vehicle has been repaired already with the original style gasket, you are due to leak again in another 60-80K.
David
Subject: RE: Chevy Vortec V-8 Gas Engine
From: t_manatu@yahoo.com
Date: 04-Mar-05
Un like my last RE On my Chevy 5300 is there any thing i can do to the air intake to make it run better and sound better??????
Subject: RE: Chevy Vortec V-8 Gas Engine
From: t_manatu@yahoo.com
Date: 04-Mar-05
I have A 2005 z71 pickup With a 5300 Vortec motor that has 6,000 miles on it But it makes a noise like it's a Diesel is that normal. (not even driven hard)
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 03-Mar-05
Subject: RE: Chevy Vortec V-8 Gas Engine
From: desperate 4 help
Date: 03-Mar-05
OK..WHILE WAITING FOR A RESPONSE FROM MY EARLIER POST I WENT BACK AND READ THROUGH OTHER POSTS ON THIS SITE..I AM SHOCKED AT WHAT IVE FOUND OUT! I KNOW THE FIRST PLACE ILL BE GOING AFTER I GET MY TRUCK ON THE ROAD IS TO GET MY COOLANT CHANGED OVER. I HAVE NOTICED THE LEVEL IN MY OVERFLOW DROPPING ONCE IN AWHILE..NOW I KNOW WHY..ANOTHER BREAKDOWN IN THE MAKING..WHATS NEXT? IVE HAD NUMEROUS PROBLEMS WITH MY BRAKES,HAD THEHEATERCORE REPLACED ALONG WITH THE THERMOSTAT AND SOME OTHER VACUUM CRAP CONNECTED WITH THE HEATER..I NOW KNOW WHY..ITS FUNNY HOW THE DEALER NEGLECTS TO TELL YOU WHAT CAN CAUSE THE HEATER CORE TO GO OUT BUT THEYRE RIGHT THERE TO REPLACE IT..AS WITH MY FUEL PUMP ISSUE, WHEN I BOUGHT THE TRUCK I INQUIRED ABOUT THE EXCESSIVE NOISE COMMING FROM THE PUMP."OH THATS NORMAL"..TWO MONTHS LATER MY TRUCK WAS DYING EVERYTIME I STOPPED AT A RED LIGHT..I KNOW IT WAS THE PUMP BECAUSE I COULD HEAR IT IN THE CAB..IT WOULD WIND UP LIKE IT WAS STARVING FOR FUEL THEN DIE AND LEAVE ME SCREWED IN THE MIDDLE OF TRAFFIC..THEN IT WOULD ALL OF A SUDDEN WORK AGAIN.. DEALER SAID THEY COULDNT FIND A PROBLEM WITH THE PUMP AND WANTED 700$ TO REPLACE SO I TOOK THE PUMP OUT AND CLEANED THE SOCK ON THE END AND BLEW IT ALL OUT..THAT PROBLEM WENT AWAY BUT NOW 7 MTHS LATER MY TRUCK IS SITTIN IN THE DRIVE "LIKE A ROCK" OH YEAH ABOUT THE INTAKE GASKET DEAL...I CANT FIND A LEAK ANYWHERE AND THERE IS NOTHING IN MY OIL AS FAR AS I CAN TELL..ANY OTHER MEANS OF LOCATING MY MISSING COOLANT? AS FOR THE KNOCK..I HAVNT HEARD IT YET..BUT AM LOOKING FORWARD TO IT 99 GMC SUBURBAN 5.7 VORTEC 91,000 MILES
Subject: RE: Chevy Vortec V-8 Gas Engine
From: desperate 4 help
Date: 03-Mar-05
i have a 99 gmc suburban..two weeks ago i went outside to start it up and my fuel pumpwouldnt engage..no sound no nothing..i check the relay .took it out then back in still nothing...then all of a sudden i heard the pump wind up and it started right up...then a week ago it did it again,came out of work and nothing..the truck would turn over but not start. nothing from thr fuel pump..now ive replaced the pump the filter and the relay...still cant get anything from the pump.is there another fuse perhaps or another relay?someone said my computer my have went out? wow that fast?is there a reset switch?..any advice would sure be appreciated
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-Mar-05
Hi. please help me . I need to know where do I find the sensor crank shf\posn on a 2001 yukon 5.3 2\wh\dr
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Bob
Date: 02-Mar-05
Thanks Ron. I don't know much about the Titan (and likely can't afford it). I do know that there are a few Tundras around that are looking better now and I know they will last. I had enough frustration with my 96 Windstar's headgasket issues - I don't need any more. Thanks again and goodbye (for now) GM.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Bob
Date: 02-Mar-05
Thanks Ron. I don't know much about the Titan (and likely can't afford it). I do know that there are a few Tundras around that are looking better now and I know they will last. I had enough frustration with my 96 Windstar's headgasket issues - I don't need any more. Thanks again and goodbye (for now) GM.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 01-Mar-05
Hi Bob,
Look at the bright side of things... You can print a few articles and gets ome very helpful bargaining chips if you go to the right dealer to buy a used vortec. If they give you an extended warranty on gaskets and piston slap at no cost, you might be a very happy buyer.
Problem is that come resale time, you will hope that you do not meet any "educated" buyers.
Makes the Titan look pretty good, doesn't it?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Bob in Klamath Falls
Date: 28-Feb-05
I WAS getting ready to buy a 2003 Silverado 1500 Z71 4x4 extended cab w/ the 5.3 Vortec, but common sense is now saying whoa there fella. Is this whole piston slap thing still unresolved in the 2003's? How about the head gasket issues? Is this Dexcool stuff bad enough in itself to steer me towards a Toyota? Thanks folks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: MJP
Date: 25-Feb-05
It's getting back to basics all these vehicles have multitude of sensors and computer directed controls. If we step back look at what actually makes an engine run: ignition, fuel,air delivery, tight seals and vacuom connections then with the help of a scan tool trace it down. My issue was air that was coming in after the mass and before the throttle body. BUt the scan tool gave me codes that I was lean in both banks. What makes it lean??either too little fuel or too much air. At first I replaced the fuel filter(10000miles)and the codes came back, good fuel presure. ThenI just looked at the K & N setup and I saw the light. So that's the story. If any one uses the K & N setup just beware of the connecting seals. THey may work for a while but eventually they loosen up or swell beyond the design they were intended to be used. Hope this ramble helps out.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 24-Feb-05
Hi MJP,
Thanks for the followup. I am sure that you have helped others with the findings you posted.
Glad that it didn't cost you any big coin.
It is nice to hear that I am not as dumb as my kids think I am.. ;?)
Live long and prosper \\//
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mjp
Date: 24-Feb-05
Ok stupid easy fix on my 1996 tahoe vortec. Ran a scan tool cleared the computer of errors. Since I have a open element air filter set up by K & N I checked the all the attachments and found that the clamp to the throtle body attachment was loose, obviously leaking in air after the mass,also found the adapter from the tube to the mass air to be difficult to clamp securely, another air leak, soooo I removed the adapter and trimmed the tube back about an inch, then the mass is the exact internal fit of the tube clamped this down nicely, reset my hypertech powertuner and have not had any error codes for over 100 miles. So anyone out there with the K&N setup just beware of this potential leak after the mass. I also dumped that huge box around the filter.Hoped this helped somebody out there and thanks to the fellow who suggested to concentrate on the mass. ,
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 22-Feb-05
Hi Sitco,
Open you fuse box the next time the truck won't start and connect a voltmeter across the fuse very carefully without jarring it. There are two tiny holes in the plastic handle with metal that must be contacted.. Make sure that you meter leads are pointy If you read a DC voltage of any kind, the fuse is going open. Why not replace that fuse in case it is not making a good contact? Make sure that water is not getting at the fuse.
Then go get your fuel pressure checked. The pump maybe working hard and drawing more current causing the fuse to corrode especially if it is a bit loose.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: sitko308@alltel.net
Date: 21-Feb-05
I have at 1999 suburban with 98,000 miles on it. It was cold and wet that day. It would crank over but would not start. So I changed fuel filter. That didn't help. So I called a friend, he took out the fuel relay fuel fuse, pushed back in and It started right up and ran good. So I drove it for a couple days. Same thing, will not start, I'm thinking the fuel pump is the next thing I what to check. My buddy say check crank sensor. Did anybody have this problem and what solved it.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 20-Feb-05
Hi MJP,
Don't shoot it yet! :)
Why not try a new mass air sensor? Somthing is telling the engine computer that there is a lot less air coming in than there really is.
Be happy, for now, at least you are getting better gas mileage.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mjp
Date: 20-Feb-05
1996 chevy tahoe 127000 miles jacobs ignition shorty headers new cats performanc exhaust customized intake sensor hypertech tuner new gas filter. i get a lean left bank and right bank code on reader any ideas out there
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 20-Feb-05
I just finished replacing intake manifold gaskets on my 2000 7.4L - plan on an all-day job. Chevy dealer quoted $850 including parts - gaskets alone are about $80 from Fel-Pro.
Chiltons says gaskets *should* be re-usable, but port gaskets were crushed - they were junk.
Current problem is dropping oil pressure. Ran fine at 40/idle to 60/2500 RPM. Just now dropped to 30/idle 55/2500 RPM, but only when hot. Still runs OK - no clatter yet.
If you're going to swap gaskets, might as well do lower radiator hose and cap/rotor. You'll see what I mean when you get into it!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 20-Feb-05
I just finished replacing intake manifold gaskets on my 2000 7.4L - plan on an all-day job. Chevy dealer quoted $850 including parts - gaskets alone are about $80 from Fel-Pro.
Chiltons says gaskets *should* be re-usable, but port gaskets were crushed - they were junk.
Current problem is dropping oil pressure. Ran fine at 40/idle to 60/2500 RPM. Just now dropped to 30/idle 55/2500 RPM, but only when hot. Still runs OK - no clatter yet.
If you're going to swap gaskets, might as well do lower radiator hose and cap/rotor. You'll see what I mean when you get into it!
Subject: 8.1 loss of power
From: Gary
Date: 19-Feb-05
I have a 2001 Suburban with the 8.1. while returing from a trip towing my 7000 lb trailer it seems to of lost alot of it's power. It use to go up hills at 70MPH in 3rd. Now it will downshift to 2nd on the smallest of grades and has trouble maintaining 55MPH. Without the trainer it seems to run fine and has plenty of power. I took it to the dealer to check out and of course they found no problems. Any ideas what may be wrong
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 19-Feb-05
HI, I am ready to buy a 2005 coachman freedom 27' rv with workhorse 6.0 liter chevy and allison transmission. I am real hesitant after all the bad stuff I have read about the vortec family- piston slap, knocking, oil usage, fuel pump, etc.. I have the option of gettting the ford triton v-10 motor and it sounds like I should pay more for the ford motor ? no one says if the knocking goes away when engine warm. I dont want to be stuck with a knocking or pinging new rv at 30,000 miles. any more advice ? Randy
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Rick
Date: 17-Feb-05
Hi Rick,
In the warmer weather, you might want to try 10W30 to see if that helps with the piston slap and the oil consumption. Two quarts in 3000 miles really isn't that bad for a big engine.
I suspect that the rotor problem is with the front rotors. (They do about 75% of the work and do run hot. You might need new front pads once a year.
Of course, you might have a dragging pad and that would tend to help overheat the rotor. An infra-red thermometer or camera could give you more accurate comparisons after a few miles of driving and a gentle stop. (A hot rotor will stay hot for at least a few minutes.)
Good luck in your quest.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: check engine light
Date: 17-Feb-05
I have a 1996 s-10 i get random misfire faults, and occasionally it runs like shit! I am a bmw technian and have done everything i can think of to get this stupid light to go off, but it has gotten to the point i just carry my scanner in the back of the truck and when it goes on i just pull it out and clear the faults!
but if anyone has any info on actually getting this fixed i would love to hear it. I switched parts from a buddies truck that isn't having the problem and i still couldn't get this thing to stoP or even narrow down the problem area! any help would be greatly appretiated!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: check engine light
Date: 17-Feb-05
I have a 1996 s-10 i get random misfire faults, and occasionally it runs like shit! I am a bmw technian and have done everything i can think of to get this stupid light to go off, but it has gotten to the point i just carry my scanner in the back of the truck and when it goes on i just pull it out and clear the faults!
but if anyone has any info on actually getting this fixed i would love to hear it. I switched parts from a buddies truck that isn't having the problem and i still couldn't get this thing to stoP or even narrow down the problem area! any help would be greatly appretiated!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Rick
Date: 16-Feb-05
I have a 2001 Sierra C-3, 6.0, mild piston slap, uses approx. 2 qts of 5-30 Mobil 1 between 3000 mile changes, and 4 wheel disc brakes self destructed (rotor delamination etc.)now at 42,000 miles. All considered to be normal.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Joe
Date: 16-Feb-05
I have a 1999 K2500 5.7L I have noticed lately that my coolant resevoir has been going low after about a week, also see coolant on the exhaust pipe on the right side. After doing some checking, I found coolant on right side of engine, top of Valve cover & head. I just replaced the heater hose fitting on the intake. How hard is it to change the intake gasket?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 15-Feb-05
Hi Jamie,
Are you experiencing a misfire? Have you looked into a possible intake manifold leak?
Have you had you oil checked for coolant contamination? Have you pulled all the plugs in the morning and dipped an absorbent stick into each cylinderhead to check for coolant sitting on top of the pistons.
Put the plugs back in and start the vehicle. Let it run for about two minutes and then remove the plugs again. Pay attention to the colour of the spark plugs.. The one- or ones which are bathed in coolant will look different from the others.
There is a vegetable based sealant that can be added to the antifreeze which will seal tiny gasket leaks. If your coolant was changed a while ago and this sealant was not added again, the leaks will come back. The sealant is added in the factory, so it must have some merit. I guess that is why they don't want you to change the coolant for 100,000 miles (after the warranty is long gone)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jamie
Date: 14-Feb-05
I have a 2000 chevy 4X4 with a 5.3 litre in it. I was wondering if you knew any site i can go to for help on changing my fuel injectors?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Greydead
Date: 13-Feb-05
I have a 2001 Silverado 5.3 and there is only 55k on the engine and it sounds like a diesel on start-up. I brought it to the dealer about this piston slap issue. The only answer the dealer said was, "Don't worry all VORTEC engines do that". HELLOOO! Not cause they all do it that it makes it alright. Anyway,I am going over this idiot dealer's head. Appointment with my lawyer this week!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Andrew Douglas
Date: 10-Feb-05
I need help. I have a 2002 Tahoe with a 5.2 Vortec engine. It knocked from new and was reported under warranty. As usual, I was told about tye carbon build up and not to worry. Well the noise became worse. Now with 51,000 miles it is in the shop. Stripped down and I am told that pistons are under sized. I really do not think this is the problem but the dealer and GM insist. Any one else having this serious a problem I would like to here from.
Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ccdc82403@aol.com
Date: 10-Feb-05
can anyone tell me if bad intake gaskets can cause water to be in the oil and can an average person change them?
can someone email me with an answer at ccdc82403@aol.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 09-Feb-05
why is my suburban burning so much oil?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: trble_57
Date: 08-Feb-05
hi i'm new at this. does anyone no about the run around that gm motors is giving to people with V8 Vortec/8100 engines? I have an 2002 Avalanche/2500 and Gm Motors is putting it through an oil consumption test. Are there very many of these engines having this problem.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Al
Date: 07-Feb-05
Hi Al,
Sorry I took so long to get back.
It is good that you say there is no leak, but the leak may be invisible if it is going into a cylinder. Of courese you will still loose coolant from the overflow bottle.. Did you mark the cold level on it?
Before you spend any more money, on engine work, try putting the cube of vegetable sealer into the rad. If it stops the misfire problem, you have proven the point. It doesn't hurt to have it in the rad in case a tiny leak should develop. I hope you are not using the red coolant.
It is possible that you do have a bad spark plug wire from the pulling that may have been applied to remove them. The scope should show a misfire or a bad plug. Has that been tried yet?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Jenny
Date: 06-Feb-05
Have 2000 Silverado Ext. Cab 4 x 4. I keep getting "Dummy Lights" that say Service 4WD & Low Fuel (even when) its full of gas. Okay fuel sensor, $400 Nut at dealership says Service 4 X 4 means it needs fluid changed. Or am I right is the 4 wd going? Battery almost dead could this make the computer go crazy and cause the dummy light to go crazy too?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: GMC man
Date: 06-Feb-05
I own a 96 gmc 5.7 and when key is turned on all the power to truck takes a few secs before kicking on anyone help me ?? :{
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Walter - wrwelton@hotmail.com
Date: 05-Feb-05
I have a 1997 305 pickup and it has 125,000 miles. The problem I am having is the intake is leaking water in the rear. At the same time the water pump went. The front freeze plug also went at the same time.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: boatman
Date: 04-Feb-05
Ihave 96 7.4 with 50,000 yes with leaking intake gaskets is it best to replace with GM gaskets or aftermarket
Subject: RE: Chevy Vortec V-8 Gas Engine
From: BURB241
Date: 03-Feb-05
I have a 2002 Chevy suburban with a 5.3 V8. Lately the engine starts hard and runs rough when cold. The service engine soon light comes on with engine misfire and fuel lean codes. As soon as the engine warms up, the light goes off and it runs fine. So far the dealer has changed the fuel filter, fuel pressure regulator, replaced all 02 sensors, replaced all plugs, coils and wires, cleaned the injectors. The problem still persists. Does anyone have any ideas as to what can be causing this. It is frustrating. The truck is very well maintained,oil changes every 2500 miles religiously, transmission fluid changed. Any ideas?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 03-Feb-05
hey i was just wondering if anyone out there has delt with headers and the 350 vortech 96-99 models? thank you!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Al Schulz
Date: 31-Jan-05
Ron, thank you for your imput.. I still don't understand why after they put a new intake manifold and gasket on the engine that I would develop a engine misfire. Could they have possibly torqued down the intake uneven and caused the new gasket to leak. My coolant leaks has stopped. Now I just have this misfire going down the highway. This misfire was not there before they removed and put on ther new parts. Now they want to try to fis it by replacing spark plug wires which they did andd no fix. Thye want to power clean the injecters and they also told be that in my 2002 van with the 5.7 that the injectors may be bad and want to replace them. I am no brain doctor but maybe they have to remove the new intake and gasket and start over as that was the problem in the first place. Don't these techs anlylize anything anymore or just try to tix this stuff by remove and replace. Waht happened to the good mechanics that actually think and fix instead of just tearing crap off and replacing what ever in hopes of a fix?? Thank you for you imput, Al
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 31-Jan-05
bought 2001 gmc 49'000 miles no problems till 59;000 black smoke ticking on starting up goes away sometimes light tickin when idling sometimes not dealer sayin fu
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 30-Jan-05
Hi Al,
You need a cylinder leak-down test. Compressed air is blown into each cylinder, through the spark plug hole and the bubbles are looked for in the rad among other things. http://www.dsmgrrrl.com/FAQs/leakdown.htm
If you are leaking, you can ask why they did not put a cube of vegetable sealer in your rad.. (like they do at the factory.) Did they install the new substitute replacement gasket or the same as the original?
I hope they did not put more red coolant back in the system.
Good luck.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Al Schulz
Date: 30-Jan-05
I have a 5.7 Chev. I just had the intake manifold and gasket changed. Now whae I go down the highway I get random misfire and it can be 2 and 7 or what ever. The Chev garage told me that if the new intake and gasket they put on was leaking I would have a code error. Oh! really? or they giving me a line of bull. This whole thing started after they put on the new intake maifold. Is there anyone out there that can give me some advise as what to do. They want to run injector cleaner through which I have done and now they want to power clean them. I think I am getting a con job here...
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Paul
Date: 28-Jan-05
Looking at putting a DynoMax muffler on my 96 Tahoe. Any issues with this? (Back pressure, etc)
Subject: RE: Chevy Vortec V-8 Gas Engine
From: crew cab
Date: 28-Jan-05
NO RECALLS ON A CHEVY TRUCK BUT I KNOW THERE ARE RECALLS ON FORD FOR THEIR TRUCKS CATCHING ON FIRE WHILE EVEN AT THE OFF POSITION. SUCKS TO OWN A FORD.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 2000 crew cab 7.4
Date: 28-Jan-05
Hi I have a 2000 crew cab 7.4 k3500, is there any recalls on the truck
Subject: RE: Chevy Vortec V-8 Gas Engine
From: To Scott
Date: 27-Jan-05
Hope you didn't put that red/orange antifreeze back in it that stuff is junk. Ruined my water pump on a 96 tahoe vortec caught it before it did any other damage.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: P Spisak
Date: 27-Jan-05
I have a 1996 chevy tahoe vortec loaded. Put Mobil 1 synthetic in it from the start. Engine never knocks runs like a champ with 70,000 + miles. Fuel milage is getting low though. Had tune up at 40,000$ Any suggestiuons.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Big Block
Date: 25-Jan-05
Just purchased a left over 2500HD Ext. Cab Silverado. Its got the 8.1 liter, Allision trans and 4.11, Locking rear end. Its a LT model. Should I purchase the extended ser- vice contract for 85,000 miles at $1650. Money back if not used at end of contract. I'm new to this site. I'm looking to hear from anyone with similar optioned truck. I'd like the good, bad, ugly of what to expect. Thank you for any help. Big Block
Subject: RE: Chevy Vortec V-8 Gas Engine
From: alschulz@ez-net.com
Date: 23-Jan-05
I have a 2002 5.7 It is missing. I just installed new plugs and fuel filter, and new wires. It still misses. I have had two PCV valves installed in the past as this seemed to cause the missing. I just had on installed in Aug, 2004. Is there a problem with these things. Do they get carboned up? What can one do to eleminate this problem? Any ideas out there? Thanks, Al
Subject: RE: Chevy Vortec V-8 Gas Engine
From: deandog
Date: 19-Jan-05
I need some help. I have a 1999 5.7 vortec. I just replaced head gaskets and rebuilt the heads. Now I am getting a p1345 OBD code.
Can anyone help?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: marreo64@yahoo
Date: 19-Jan-05
Well im during a senior project on the difference between a stock engine and a crate engine and i want to know were i could find some information and i you could help me out
Subject: Oil capacity for the Vortec 5.3?
From: foutz_7076@hotmail.com
Date: 18-Jan-05
Got the oil changed in my 99 pickup and they said it onlt took 5 quarts. I was told my engine took 6 quarts. What is the correct number
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 18-Jan-05
hey i was wondering if anyone out there has any feedback on a granatelli mass air flow sensor for a 98 5.7? or even a super chip hand held programmer? please let me know thanks chevman84
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dave
Date: 18-Jan-05
ATTENTION SCOTT:
I've had a massive failure related to sudden overheating. Driving in a snow storm when I notice the Service Engine Soon light on and, keeping my eyes on the road, did a quick scan of the gages and when it stayed on pulled off in a safe place and saw the temp gage pegged. Shut down immediately and it would not start. Let it cool down and limped off the road. No sign of leakage prior nor loss of coolant so it was instaneous failure. Bottom line is a new engine, water pump coolant lines and NOW the trans has been damaged as well and am told it is all related to the overheat. Sounds like we've got problems with that engine. Mine's a '96 with a Vortec 5.7 in a 4x4 Suburban.
Subject: RE: Chevy Vortec V-8 (When to change coolant?)
From: Ron to Larry
Date: 13-Jan-05
Hi Larry,
If you don't even have a need to top up your coolant reservoir, keep an eye on the cold level.
Mark the plastic bottle with a premanent felt tip marker and watch it carefully to see if it drops over a few weeks. If it does, you are loosing coolant, likely internally. If you are still under the factory warranty, make sure to point out the coolant loss to the dealer and insist that they try to fix it. Once you get this on record, you have a better chance of getting repairs subsidized or fully paid for, if the gaskets should fail completely after the warranty runs out. (Just don't loose your copy of the work order.)
To prolong the life of the internal manifold and head gaskets, most owners will tell you to get "the RED out" ... meaning the red permanent Dexcool.. If you open the rad and see any thick pasty sludge, a thorough coolant flush and refill with a name brand green coolant is the next step. This could void your warranty so, it has to be thought out. If you are already past the warranty, then it is a no-brainer... Change the coolant. Adding a vegetable based or metal flake based leak stopper to the coolant (as is done at the factory) is also very advisable. (Yes! They add a leak stopper on the production line to plug the factory leaks.)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: larry@liquidfit.com
Date: 13-Jan-05
I have a 2003 chevy vortec V6 and I have had no problems so far, are there any recalls on this truck yet.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 08-Jan-05
Hi Bogi,
Regarding the coolant leak...
Do a search on this forum for "Quickseal" and you will see some of my older posts.
There is also a vegetable based cube of sealant which can be added to your rad, which will stop the internal leak in a short time. Apparently, this is used on the production line to assure no complaints come back too soon... I wonder if this is why they tell you that the coolant should not be replaced for 100K.
Those who DO change coolant before that time has gone by surely are not putting new sealant back in the rad.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Bogi
Date: 08-Jan-05
I just changed the fuel pump on my 97 Chevy Tahoe (Vortec 5.7 engine) A week later (today) it takes about about 15 to 20 seconds verses before 1 to 2 seconds. At one point it backfired and white smoke started coming up thru the hood. It runs fine around town and on the highway. There is no smell of gas. I have notice in the last 3 to 4 months I have had to add at least 3 to 4 cups of anti-freeze every 10 to 12 days with no visible sign of any external leaks. I changed from RED to Green anti-freeze at 30,000 miles in 2000. It now has 107,000 miles and has never had intake gaskets replaced. It looks like getting rid of that RED anti-freeze help on saving the gaskets. Do you think the problem could be the fuel regulator or something else? My brother in-law took his 96 Vortec P.U. with the same type of starting problem into the dealer and the whole Spider assembly with ejectors were replaced free of charge parts and labor. This problem was an emission recall if the vehicle supposably has 100,000 miles or less. Has anyone ever heard of this kind of fix from the dealer? Thanks! mebogart@sbcglobal.net
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Bogi
Date: 08-Jan-05
I just changed the fuel pump on my 97 Chevy Tahoe (Vortec 5.7 engine) A week later (today) it takes about about 15 to 20 seconds verses before 1 to 2 seconds. At one point it backfired and white smoke started coming up thru the hood. It runs fine around town and on the highway. There is no smell of gas. I have notice in the last 3 to 4 months I have had to add at least 3 to 4 cups of anti-freeze every 10 to 12 days with no visible sign of any external leaks. I changed from RED to Green anti-freeze at 30,000 miles in 2000. It now has 107,000 miles and has never had intake gaskets replaced. It looks like getting rid of that RED anti-freeze help on saving the gaskets. Do you think the problem could be the fuel regulator or something else? My brother in-law took his 96 Vortec P.U. with the same type of starting problem into the dealer and the whole Spider assembly with ejectors were replaced free of charge parts and labor. This problem was an emission recall if the vehicle supposably has 100,000 miles or less. Has anyone ever heard of this kind of fix from the dealer? Thanks!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: wwwdonsdad07.com
Date: 08-Jan-05
buying a 2003 2500 hd have they fixed piston slap yet??????
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Caleb in Texas
Date: 07-Jan-05
I'm going to check with my mechanic about the flywheel. It's very evident at low RPM, especially idle at roughly 600 RPM. I can still hear it faintly up through 3500 RPM (I don't drive either truck very hard, especially with the engines being new). I'll start going through the earlier posts about the piston to see if it applies to my engines. Thanks for your help.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 07-Jan-05
Hi Caleb,
GM has had trouble with (too thin) cracked flywheels causing a cliking sound which goes away as RPM is increased. Hopefully this was not missed when the engine was swapped. I can't see how it would be missed.
Others have mentioned that a special piston was required on one cylinder to prevent parts touching internally. Maybe somone will link you back to such posts in the long list.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Scott
Date: 07-Jan-05
Just thought I'd pay my dues: 97 350 vortec owner, just replaced intake manifold gaskets/water pump at 110,000 miles. Actually surprised it made it that long, I was going thru a gallon of antifreeze a week with no apparent leaks, all out the exhaust. Runs good now, switched to the green antifeeze. I'm not a professional mechanic, but I changed the gaskets myself. I can see how the labor rate adds up on this fix. It took me three days/(4) hours each night after work to get this one done, but suspected savings of $600 in labor. Good luck and happy running all! Oh ya, also developed piston slap early this past spring, wasn't too bad then, but when it started getting cold this year, it was totally embarrasing, sounded like hell, it was so loud and I was so pissed at chevy I was seriously looking for a Nissan Titan to replace the Z71! I kept my eye on this site all along... I switched to 0W-30 mobile one synthetic at $5 a quart and a Fram oil filter. Seriously have not had the piston slap since. I only notice a faint knock on super cold mornings for less than 15 seconds. I really can't explain it, but paying the extra for the oil, if it keeps the knock, knock, whos there, my chevy engine: away is well worth it to me!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 5.0 Vortec
Date: 06-Jan-05
Will Flowmasters adversely affect the performance on my 5.0 Vortec because of the backpressure issue?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: matt
Date: 06-Jan-05
i have a 99 yukon and has a leaking intake gasket that causes a random missfire it had a lifter tape in the morning so i was told to run a cleaner through the engine called ( C FOAM) it really worked also i had to put a ac delco oil filter on it
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jlbrad
Date: 05-Jan-05
anyone have a problem w/their fuel gauge?
My 2001 Silverado gauge just started going crazy. Shows full, then empty, the 1/4, the full, then. . .
Dealer said it's a broken fuel sensor sender and it's gonna cost about $400 to fix. bummer
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 04-Jan-05
hey caleb, the hp on the 5.0 is 235 the 5.7 is 255 hp.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 04-Jan-05
hey caleb, the hp on the 5.0 is 235 the 5.7 is 255 hp.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Caleb in Texas
Date: 02-Jan-05
I have a '98 5.0 Vortec that I just got back from the shop. To make a long story short, my water pump started to go out the same exact time that the engine developed a coolant leak. This happened going about 70 on an old FM road. Anyways, the block cracked and tore everything all to pieces. A new 5.0 was installed to the tune of $4,000. I aso have an '82 SWB C-10 with a new crate 350. On both trucks I've noticed a clicking sound every time the engine makes a revolution, from idle through acceleration. There's no misfire, and it's not a knock, and both engines are new and taken care of by the best technician in Killeen, TX. I've noticed this sound on lots and lots of GM engines, and I'm just wondering what it is.
Also, if anyone knows the HP/Torque specs on a 98 Vortec 5.0 I'd love to see them. I've seen it rated at 235hp and 255hp on random websites, but it sure as hell doesn't drive like it.
Thanks for your help, and Happy New Year
Subject: Chevrolet Tahoe Multiple Misfires.
From: kyfarmer
Date: 02-Jan-05
Ok, I have read all the posts and pretty much everything on the internet and I need some advice before I spend way too much money.
I have a 1996 Tahoe with the vortec 350 and 123k miles on it. At 80k the intake manifold gasket was replaced because it was leaking. Now two years latera nd just 500 miles ago a miss started at 60 mph when I would barely lift my foot off the gas. Service engine light code read 1406 EGR Pintle Position Circuit along with 0300 multiple engine misfires.
So, I replaced the EGR valve and had the converters gutted. I also replaced the plugs, cap, rotor, wires, fuel filter. Problem persisted and I was forced to go the Chevrolet dealer. He ripped my off by running some injector cleaner through it.
It now runs WORSE than ever before. The miss used to start when I would lift my foot slightly off the pedal, now it misses from 0-60 accelerating or decelerating. Could someone please give me some ideas before I spend any more money on this truck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: racolanti@snet.net
Date: 29-Dec-04
I have a 97 350 113k in a suburban that has been dealer serviced. Recently turn signal relay clicking issue has been an intermittent problem. Clicking can stop if brake pedal is pushed. Relay clicking does not cause turn signals to flash. Turn signals work as do all the lights just the noisy click intermittently. Yes I did replace it and now just coincidence I have an issue with very rough start, excessive vibration at idle or acceleration and poor performance.Seens to be a misfire. Recent cold had me fill the tank and add a gas treatment. NG. Flashing check engine light is the symptom. Lastly I am going to install a new fuel filter and PCV.Any trick to change filter as the fuel system is pressurized and I would like to minimize a mess. Any tips would be appreciated. Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron (reply to Stranger)
Date: 28-Dec-04
Hi Stranger,
I believe your next move should be to add some some vegetable based sealant.. or a product called Quick Seal (from Canadian Tire in Canada) to your rad.
The misfire could easily be due to coolant getting into the combustion chamber and causing either a wet spark plug or carbon deposits.
Scroll through the index on this list to see others with the coolant loss problems and misfires..
Get the "Deathcool" (red coolant) out and flush the system to hopefully stop the internal corrosion.
Merry Christmas
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: golfar@telus,net
Date: 27-Dec-04
I HAVE A 2002 SIERRA WITH AN 8.1 VORTEC AAND IT USES 2 OR 3 LITERS PER 3000 MILES HAS ANY ONE HEARD OF A FIX FOR THIS PROBLEM.GM TELLS ME THIS IS NORMAL FOR THE 8.1 BUT I BELIEVE IT'S BULL.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 24-Dec-04
hey anyone know how to get a little more power out of my 1998 5.7?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: sranger@shaw.ca
Date: 23-Dec-04
1997 5.7l Vortec (wife truck)
PROBLEM: Severe hesitation under heavy throttle or heavy load. Severe misfire (only sometimes). Engine light on sometimes. Transmission shift probelms sometimes. Coolant loss.
FIXES: 2 new O2 sensors-no change. New spark plugs-no change.
IDEAS: This must be a computer problem (sensors etc.). I bought an inexpensive code reader and it indicated the O2 sensors, so I changed them, to no avail. Spark plugs were next cheap idea. I also pulled the Throttle Position Sensor and checked for smooth resistance and there was. I will now attempt to 'tap' the Air Flow Sensor.
The reason I feel the problem is the computer/sensor is because the truck runs very well under light to medium acceleration and the problem only comes to light when the truck tries to pull hard. The sever misfire only comes sometimes and then it's gone. It will also run very poorly sometimes and if I reset the computer, using the code reader, it runs better for a while. I've erased the computer ten+ times.
Any ideas??
Scott
sranger@shaw.ca
Subject: RE: Chevy Vortec V-8 Gas Engine
From: MY PROBLEMS
Date: 22-Dec-04
I HAVE A PROBLEM. I BOUGHT A CHEVY. WHAT DO I DO?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: krazy mo
Date: 20-Dec-04
Tim
If you're engine is a hard cold start you can try switching to a lighter weight oil. Also, your battery may be low or if it is a cheap one this could be the problem (stick with AC Delco).
Just how cold is it though? If we're talking -15 to -20C (0 to -10F) or colder you may want to look into a block heater.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 20-Dec-04
hey matt, your exhaust performs better with 2 into 1 because it builds the necessary back pressure. I'm sure there are some things you can do with the exhaust to improve performance, but make sure you do your homework on it first.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Tim
Date: 20-Dec-04
I got 96 Gmc 5.7L , It is hard starting now that it has gotten cold , it rans fine once it's starts. I did not have this problem until it starting getting cold. Has anyone seem this problem , Thanks Tim
Subject: safari 1999
From:
Date: 19-Dec-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 18-Dec-04
Hi Rdawson,
Whatever the cause, it is likely that you will find out once you take off the inner door panel.
More than likely the pusher arms have partially come off the lower edge of the glass.. Does the door make a lot of noise when closed with the window partialy down? This commonly happens when it is very cold and you try to open a window which is frozen in place.
It is an easy fix, once you can see what is happening.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rdawson1@ns.sympatico.ca
Date: 18-Dec-04
Wondering if anyone else is having problems with power windows. Mine is a 2001 GMC Sierra and the F$%#&*ing window won't go up all the way. Is this a common problem?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Matt
Date: 17-Dec-04
i have a 97 chevy 1500 its lower and has a few proformance parts in it and exhaust I was just wondering. The exhaust on my truck goes from the manifold to the cadalidic converter to a single 3" pipe. Its a 5.0L. I was just wonering if that affects my proformance. It sounds great but im not sure if it does. Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: krazy mo
Date: 17-Dec-04
I forgot to mention a problem I once had with my 96 where it did the same thing after a long road trip. Check your valve springs. With a lot of cars you would hear it clanging, but I didn't hear it when I broke mine.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: krazy mo
Date: 17-Dec-04
ok mike, check the fuel distribution system. It consists of the fuel meter body, injectors which sit in it (these use plastic fuel rails with poppet nozzles), and the fuel pressure regulator. If you're not noticing much power loss while driving at high speeds, the misfire is probably not happening at that time. If you're noticing any smell of gasoline, this is definately the problem.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 17-Dec-04
Hi Nuke,
Are you loosing any coolant without a visible leak? If so, add some Quick seal or that vegetable based factory seal to the rad.
Good luck Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mike
Date: 16-Dec-04
i got a 1997 z71 5.7 craptech. at 94,000 miles or a little before after a long trip, is started cutting out under a load on the interstate and noticed a huge power loss. replaced plugs wires cap roter. upon inspection of plugs 3 were soaked in oil werent even firing. took it to my mechanic uponf further inspection was running on 5 cylinders amazing not even much of a difference between the 5 and 8 just on take offs. damn thing would still run like a champ. any way replaced the valve seals ran better for three days then started again, still shooting oil in the three cylinders. tore it back apart and on the # 6 and 8 the lifters were worn down about 1/4" more than the others. so i just opted to put a new engine in rather thsn to rebuild it. every thing was fine untill after another road trip now is misfiring again. check the injectors number 4 was getting no fuel at all. replaced the injuectors cap rotor o2 sensors put new gm plug wires on fuel filter intake gasket for the 3rd time got rid of THE HORRIBLE RED SHIT. still have the damn misfire, its not in any specific cylinder the scanner just shows a mis fire. i have spent way to much money on this more than i can really afford, i will try another cap rotor wires. and possibly coil it has a msd coil on it that is only a year old but i'll try another one i just want t his damn problem fixed its been driving me insane trying to figure it out i have done everything and my mechanic has done everything we can think of. if anyone knows what the hell thin problem can be please let me know this ios just ridiculous i take more than good care of this thing, i put every cent of extra money i get into it and cant stand to keep haveing the same problem and not a clue what it is. PLEASE HELP. shy_redneck2003@yahoo.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: krazy mo
Date: 15-Dec-04
ram air is a hood with a scoop. you have to reroute the intake hose to the hood scoop. it allows for a big blast of cold air and makes the biggest difference on take off.
Be careful when selecting aftermarket exhaust kits, this engine uses back pressure to develope much of it's power.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 15-Dec-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84
Date: 15-Dec-04
hey what is a ram air kit? does anyone know if a granatelli mass flow sensor does much on a 1998 1500 5.7L or how about a underdrive pulley? or headers? i already have a k&n cold air kit, helix throtle body spacer and a resistor in the computer, and a spintech exhaust.
Subject: 2002 chevy 2500 6.0
From: wjb36@bellsouth.net
Date: 15-Dec-04
According to my manual you have to remove the starter to get to it.
Subject: cylinder 5 misfire on Vortec V-8
From: wjb36@bellsouth.net
Date: 15-Dec-04
I had a misfire on cylinder 5 only. I tried dist.,rotor, cap,wires, plugs,etc. but nothing worked. I developed another problem, intake gaskt leaking. Replaced gasket and misfire disappeared for a couple of months. I read about some stop leak that is vegetable based that can be purchased at the dealer in this forum. It cost less than $2.00. Just add to radiator and drive and it should stop the antifreeze leaks in the intake. I haven't had a misfire since. I guess a small amount of coolant was seeping into cylinder 5. Thanks for all the suggestions.
Subject: cylinder 5 misfire on Vortec V-8
From: wjb36@bellsouth.net
Date: 15-Dec-04
I had a misfire on cylinder 5 only. I tried dist.,rotor, cap,wires, plugs,etc. but nothing worked. I developed another problem, intake gaskt leaking. Replaced gasket and misfire disappeared for a couple of months. I read about some stop leak that is vegetable based that can be purchased at the dealer in this forum. It cost less than $2.00. Just add to radiator and drive and it should stop the antifreeze leaks in the intake. I haven't had a misfire since. I guess a small amount of coolant was seeping into cylinder 5. Thanks for all the suggestions.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: alabamacwboy
Date: 14-Dec-04
where is the crank shaft position sensor located on a 2002 chevy 2500HD 6.0leter
Subject: RE: Chevy Vortec V-8 Gas Engine
From: krazy mo
Date: 14-Dec-04
shali brown
have them check for a problem with the immobilizer if it's equipped. If it's screwing up it will shut off the fuel line and not give any fault codes. It could also be a problem with the ecm, it will also cut the fuel line if it thinks the immobilizer is being bypassed.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 14-Dec-04
hey chevyman84... go with ram air if you want a quick blast of power on take off, but don't do this if you're a heavy off roader, the last thing you want is mud flying into your air filter.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 14-Dec-04
randy... you can't... sorry.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Randy
Date: 13-Dec-04
How do I reset the timing on my 2000 chevy 5.7L?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chris
Date: 11-Dec-04
Hey all, I found the flooding and hot hard starting problem on my 97 5.7. It was the fuel pressure regulator. Not an easy job, but the truck runs great. ood luck to all. 210,000.00 and still going!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 09-Dec-04
Hi Melvin,
Have they tried installing some temporary idiot lights to monitor power to the coil, the ignition switch, and power to the fuel pump? Ignition modules have been known to go intermittent. Ideally you would see a light come on when a switch went open, or see a light go off when power quit for any reason. All you do is tell the tech which light was acting abnormally. Save a lot of head-scratching. I am surprised that the chevy shop was throwing parts at it without more diagnosis.. If they tell you that the air conditioning is causing the problem, it might be. :( Does the idle increase when the compressor comes on at idle? (That would only cause slowing RPM problems at idle but not stalling or hard starting.)
There are also black boxes which can be plugged into your diagnostic connector, which you can activate when you have a problem.... The box then saves the previous hour of data while things were humming along smoothly. The tech then goes over the data to see what happened just before you activated the recorder.
All this, and no stewardesses.... too bad.
Fuel pumps can overheat when they are not submerged in gas. Does that correlate with when you might have trouble? An external fuel pressure guage can be connected, so that you can watch for fluctuations when you have stalling. If your fuel fump does prove to be the problem, you might want to consider an external one for ease of service and better price. You don't even want to ask how much the one in the tank costs.
If you were Santa Claus, I would contract out the delivery this year... Good hunting.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: melvin
Date: 09-Dec-04
Hey Ron, I put a new distributor which had a a new reluctor in it. Howerver I have not tried wiggling the wire while idling. This thing is still in the chevy shop. I talked with the tech working on it he thinks that either the fuel pump is going bad, sticky injectors or a leaky fuel regulator. Who knows, if and when the phamtom shows its self I will pass the info on. I will check the wire or have the tech check it. If you can think of anything else please pass it along I have been fighting with this problem for a year!!!!! thanks melvin
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 09-Dec-04
Hi Melvin,
Have you considered the possibility of changing the little reluctor inside the distributor?
There should be a wire coming out of the lower part of the distributor and this can sometimes develop an intermittent break. You can try wiggling the little wire while the truck is idling to see if you can cause it to stall.
Good luck
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevman84@msn.com
Date: 08-Dec-04
i was wondering how to get more power out of my 98 chevy 5.7? i already have a k&n cold air kit, helix throttle body spacer, spin tech exhaust, and a resistor in the computer. i was wondering if the underdrive pulleys make a difference? or what else could i do to get a little more power without having to go to the extent of a supercharger. if anyone could please let me know. thanks all please e-mail chevman84@msn.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 08-Dec-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Robert G.
Date: 08-Dec-04
I have a 2000 Chevy V-8. In the mornings, it revs up the motor then suddenly comes back down again. It does this a few times til it warms up, then it's OK. Does anybody out there know what the problem might be?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: melving@landau.com
Date: 08-Dec-04
98' z71 350 shuts off while driving , some times runs just fine, some time misses, rough idle. Changed cap, rotor, plug wires, battery, fuel filter. 155000 miles. engine light on, muti misfires is what the code flashes. been in the chevy shop for 3 days can not figure out whats up. any ideals
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ED. in va
Date: 07-Dec-04
I have about 76K (hard miles) on my 97/98 Z71. Interesting enough I wish I would have found this site a few years ago. I encountered the rough shifting from 1st-to 2nd and so on. First started about 50k. After 1800 in transmission repairs the problem turned out to be a 40 dollar solinoid sensor in the transmission case. Got rid of the engine lite. After doing some research I'm sticking with the DEX- Orange stuff. Its basically the same, and people that have changed to the regular anti-freeze have had major problems after the long haul due to sludging in the radiater. I solved my ticking on cold start-ups by using a oil-filter with a backflow valve. Which some of the more expensive oil filters do not have.
I'm in the middle of flushing the coolant, and having difficulty accessing the drain valve? Also can anyone steer me in the right direction as to wear the fuel filter is located (the one the size of small beer can) thanx
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Shali Brown
Date: 06-Dec-04
I have a 2002 Chevy Avalanche. I am having a problem with it stalling or "cutting off" randomly. I have had it to the dealer several times and they say they cannot reproduce the problem. Luckily, my service agent did witness it cutting off one time so they don't think I'm imagining it. It happens completely randomly - at speed, slowing down, speeding up, full tank, 1/2 tank, 1/4 tank. Sometime it will go a week without happening, then sometimes it will happen 3 times in 15 minutes.
Has anyone else had this problem or heard of anyone having this problem and what was done about it? I'm still under warranty. Please help if you can.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: James T
Date: 04-Dec-04
I have 97 1 ton with 190,000 miles. It's got The 5.7L Engine,and it's been THE BEST truck I have ever owned. I,m a rigwelder so it get's alot of wear on it, but has never left me {Knock on wood}. I want to Overhaul the whole truck for my son, when I buy me A new one next year. I need to know a good web sight for part's and advise that specify on this truck and moter, and if one even exsist. thanks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: James T
Date: 04-Dec-04
I have 97 1 ton with 190,000 miles. It's got The 5.7L Engine,and it's been THE BEST truck I have ever owned. I,m a rigwelder so it get's alot of wear on it, but has never left me {Knock on wood}. I want to Overhaul the whole truck for my son, when I buy me A new one next year. I need to know a good web sight for part's and advise that specify on this truck and moter, and if one even exsist. thanks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: James T
Date: 04-Dec-04
I have 97 1 ton with 190,000 miles. It's got The 5.7L Engine,and it's been THE BEST truck I have ever owned. I,m a rigwelder so it get's alot of wear on it, but has never left me {Knock on wood}. I want to Overhaul the whole truck for my son, when I buy me A new one next year. I need to know a good web sight for part's and advise that specify on this truck and moter, and if one even exsist. thanks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: James T
Date: 04-Dec-04
I have 97 1 ton with 190,000 miles. It's got The 5.7L Engine,and it's been THE BEST truck I have ever owned. I,m a rigwelder so it get's alot of wear on it, but has never left me {Knock on wood}. I want to Overhaul the whole truck for my son, when I buy me A new one next year. I need to know a good web sight for part's and advise that specify on this truck and moter, and if one even exsist. thanks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: James T
Date: 04-Dec-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-Dec-04
mark003.... need more engine info for torque specs ie: year and size.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-Dec-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-Dec-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: crazy mofo
Date: 02-Dec-04
chris, check your egr valve and pcv valve. Hope it solves your problem cause they're easy jobs.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-Dec-04
Hey chris, check your egr valve and pcv valve. both of these are designed to stop problems such as that.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-Dec-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Derwood
Date: 01-Dec-04
Hey Chris All have to check thay fuel filter. thanks for the tip.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 01-Dec-04
The company I work for just bought 3 1997 chevys with the 5.7 vortex engine. All 3 have less than 30,000 miles and all 3 were leaking coolant from under the intake and 1 had a warped head which caused coolant to leak into #5 cylinder.That caused a miss on #5 cylinder and also did piston damage.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mart003@comcast.net
Date: 01-Dec-04
installing new crank shaft and bearings . and i need torq specs for the rods and mains
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Chris
Date: 01-Dec-04
210,000. miles. 1-engine,(piston knock)"yes dealer installed under warranty" (Lawyer threat), 1-intake gasket set, 1-fuel pump, 1-wiper board, multiple exaust doughnuts, gotta fix this heat soak problem. P.S. Pay the extra money for the platnium plugs, change oil often and moniter the coolant bottle for coolant useage.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chris
Date: 01-Dec-04
Derwood, my fuel pump has failed once already. I've found the pump will get noisy when the filter starts to get dirty. Replace the filter and see if the pump quiets down. Mine did. Now I know when to replace the filter.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Chris
Date: 01-Dec-04
I have a 97 Chevy Suburban 4x4. Hard to start after sitting 30 min. or so. Heat soaked. It's flooded, once it starts and clears out it's fine. Now my chck engine lite is on. Cranked it over and pulled the plugs, none wet. I've also been through the intake gasket thing and the piston slap, I feel for all of you. If anyone has a sugestion for the heat soak problem you can e-mail me at Chris@eaglemarine.com or reply here. Thanks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 29-Nov-04
not really sure... I get about 550 - 600 km per tank if I drive nice... that's about 350 - 375 miles for all you yanks out there. that's on the 5.7L
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Derwood
Date: 29-Nov-04
Thanks. Do you have any idea what my gas mileage should be like? Or where I might find other specs on my truck?
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 29-Nov-04
hey derwood, if you can hear the fuel pump that means it's working, you might just be paranoid because it's your new truck, I did the same type of thing when I first bought mine. Just watch for excessive fuel consumption, loss of power, or fluctuations. You may also want to check your fuel filter.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: crazy mofo "heartshapedbox32@hotmail.com"
Date: 29-Nov-04
I have a problem with my 96 5.7 It's idling and running rough. I talked to one technician and he said it could be a fuel distributing part that he referred to as the "spider". I then talked to another tech and he didn't have a clue what that was. Does anyone know what the hell this guy is talking about? someone help pull the web off my eyes!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: derwood
Date: 29-Nov-04
I just recently purchased a98 2500 4x4 chevy. The fuel pump is loud and i have never noticed it on any other chevys. Does this mean its going out? Should I be worried? Thanks for the info.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 29-Nov-04
hey girl with truck... do not use flowmaster exhaust with this engine. it relies too heavily on back pressure and the flowmaster could actually decrease your performance. just thought I'd let you know.
If anyone else is wondering, these engines typically have gasket problems for intake manifold. they switched to a plastic like material with thin layer of rubber in the middle, so they can blow quite easily.
Another common problem is the passlock anti theft feature, and/or bad ignition switches for 96-98.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to little riley
Date: 28-Nov-04
Hi Riley,
Have you looke around for an EXTERNAL fuel pump? You can install it in the fuel line and leave the old one where it is... I believe any valves in the pump are one-way and you can draw through them without a problem. I think they were put in the tank to keep them cool, but if you always drive with a 1/4 tank they don't last as long.
You could ask at a parts supplier if this will work. (try sucking through a new pump with a vacuum pump (or your lips) if no one knows for sure Maybe even the internet search will come up with a reply.
Good luck.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mwright@horizonview.net
Date: 28-Nov-04
Ihave a 98 350 vortec in a 3/4 ton truck which like everyone else suffers from the same problems.It has 100,000 miles now,intake gaskets replaced twice, brake,radio,lights,wiring problems etc. Noises in engine now. I have always ran syntec oil in all vehicles. My fords, some having 250,000 miles and never had an oil leak or any of them been apart. The gas mileage is about 5 mpg better on a ford with better throttle response and power. I also have a v-10 ford 4 wheel drive that does 5 mpg better than the chevy 350. I bought it to tow with because the chevy is to light and the 350 is underpowered,and only gets 6 mpg as the ford v10 get 11. I also have a new escalade with the 6.0 litre engine. Has very poor mileage and miss fires while driving. Mileage 14 at 55mph. Handling sucks. No more GM's for me.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: littleriley@bellsouth.net
Date: 28-Nov-04
I was wondering is there an older or newer model interchangable fuel pump for 1998 5.7 v-8 vortec gas engine in tank.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 2500HD 6.0 intake mods rjoraw@northerntel.net
Date: 28-Nov-04
Just traded a 98 7.4 for a 03 6.0 because I don't tow as much any more, hope I'm not disappointed.My question is has anybody had any experience with Vararam products, the VR velocity stack, and VR king cobra ram air and cold air induction systems. Talked with a guy with a velocity stack, he is very happy with increased milage and HP, for a cost of $50. Next he's trying the king cobra. VR guarantee's products performance or will buy it back, so they say. Also, he put on a set of Gibson headers with stock exaust and was impressed with milage, hp, and torque increase, then replaced rest of system and was not impressed, to little back pressure, torque decreased. He stated to me Chevy's problem has always been can't get exaust out of heads fast enough. His advice was headers with stock exaust. We are at 3150' elevation in Montana and he stated we can't get enough air into system to create the problem of exhaust not getting out of oem muffler. I wanted to change to "pro flow" 2500 muffler, he said I was starting on wrong end.Please feel free to email me with experiences, and comments.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chevyman127us@yahoo.com
Date: 27-Nov-04
FUEL MASTER what is this product an where would i find one i have a 96 gmc truck have helped the gas mileage some with aftermarket addons but would like to see if i can still get more bang for the buck
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Rich
Date: 24-Nov-04
Hi Rich,
Have you had your fuel pressure checked? If you have any erratic shifting or failure to downshift, it could be due to the throttle position sensor.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine 1999
From: Workhorse Rich
Date: 21-Nov-04
I have a 1999 Workhorse 454 Vortex motorhome. It has been working fine until lately where I am loosing power up any grade. Had the fuel filter and replaced and fuel induction service performed a year ago. Had it to the dealer and they can't find anything. I am thinking the fuel filter should be replaced again as it has been 17 months since this service was performed. Any comments on this? I am pretty sure there is only one in line filter on the coach. Can any on confirm this? If I have to replace the fuel filter on my own should you fill the filter with fuel before replacing? I also heard Workhorse had a problem with rust in the fuel tanks and could be a contributor to the filter clogging so quickly.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Girl with truck
Date: 20-Nov-04
Hi GWT,
Sometimes keeping on top of your fluid levels is fine, but if you are always having to add antifreeze and water to the rad overflow, there is a reason that needs to be isolated.
Have you ever had the smell of antifreeze come from the tailpipe when you first start up after being parked all night? Does there seem to be a big cloud of steam even on relatively warm days which could point to water in the cylinder/s?
It should not be necessary to add coolant to an engine ever, (if there are no leaks) Just put a marking pen line on the overflow bottle to keep track of any decrease in the level. A serious leak should show up in a few days as long as you always check when the engine is cold after being parked overnight. If you believe that there might be an internal coolant leak, there is a trick which can fix it without taking the intake manifold off. If you are in Canada, go to Canadian Tire and get a product called "Quick Seal" and add some to the rad. (I/4 of the bottle is often enough) The manufacturer recommends adding a vegetable-based leak sealer (tablet) to the rad when the coolant is replaced. Do you think that they do this to help get vehicles off the production line and into the storage yard?... (I do.)
There is no connection between the stubborn air vents and the coolant level. The air vents are controlled by little swinging doors, which need to open and close completely when you change the knob or lever positions. If you are able to open and close the vents quickly enough, it is possible to hear the doors slamming in the duct. Of course, you have to be in a quiet location and you may need to have someone outside, or under the hood to hear the doors thumping. They are lined with sponge rubber gaskets to help seal and prevent rattles or leaking air. If they don't close completely or open as they should, heat will be compromised.
A common problem with some older GM vans was that when you selected the upper and lower heat at the same time, it sometimes allowed direct cold air from outside to go directly to your feet and all the heat went to the windshield. By carefully adjusting the blend control, you could get some of the heat to go down to your feet, but it was often not agreeing with the pointer on the heater control dial- indicator. Once you find the right position... LEAVE IT THERE and don't adjust it unless someone moves it by mistake. You DO need some heat on the windshield at all times to keep ice melted and to blow away condensation, but you need heat on your feet TOO.
Take care.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: girl with truck
Date: 20-Nov-04
ron, thanks for the info! I do have the gurgle! i dont have the low coolant light but i really stay on top my fluid levels. i did have a leak, it would drip front and center behind the radiator. i had a new water pump installed and it didnt correct the problem. it must be the gasket. thats gonna be fun to replace! i dont quite understand the connection between my stubborn air vents and the coolant level though. i get that if the temp sensor didnt allow vacuum to the lines it wouldnt work but i have this prob on a/c too? i must have two seperate problems?
96tahoe, no i still have my flowmasters on. i had heard after time the material inside of them gets burnt out and they are no good after a while. im at a point on my exhaust issue where i really cant decide what i want. ive also been tossing around the idea of gettin rid of the flowmasters and just puttin straights on it. do you know how that would affect gas mileage? i love a good deep rumble but dont want to sacrifice anything for it!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Girl with truck
Date: 20-Nov-04
Hi GWT,
Your heater controls sound like they may have a connection to the vacuum system in order to control the various doors and air diverters which adjust the air flow to the places you want. If any of these doors are stuck, or if there is a leak in the vacuum lines, things may not always do what you want.
If you can find the main vacuum line that feeds the heater system, have it unhooked and tested to assure that there are no leaks. If that checks out fine, then there is more work in store if you have to check the damper doors. You will need help to do this.
Some vehicles also have a temperature sensor to prevent vacuum from being applied to the heater UNTIL there is some engine heat to be appreciated. (My 76 Thunderbird would not blow any air until the engine was warm, or you moved the selector to defrost.)
Do check your coolant overflow bottle to see if it is empty. If so, you will find that heat is not always coming out of your vents. A low coolant level in the engine starves the heater and prevents flow until you rev the engine or the coolant gets hot and expands sufficiently to fill the voids. If you sometimes hear gurgling in the dash, that is the cause. Do you have a "low coolant" light coming on once in a while? This is a sign of a leaking intake manifold gasket which affects many with GM products. Good hunting, girl
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: get-r-done72801
Date: 19-Nov-04
Dave in Mich I had the same thing w/ my 2001 and gm has a cleaning the do they say is regular maint that the do to the throttle body they did it on mine and it worked that has been about 5k ago good luck it will start knocking soon Good luck o it is about 150 bucks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 96tahoe
Date: 19-Nov-04
HEY Girl with truck. first off it sounds like you took your flowmasters off. why would u do that? if they are in good condition still, slap them back on. if not, go buy new one's. if your going to upgrade in intake you might as well up grade in outtake hence as a analogy if your going to upgrade in breathing in you need to upgrade in breathing out. your a/c problem...beats me...
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 96TAHOE
Date: 19-Nov-04
HEY KENNY ITS PROBABLY JUST CONDENSATION FROM THE A/C OR WATER PUMP?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: kenny
Date: 19-Nov-04
My 98 Z71 is leaking water out of front of the transmission
Subject: RE: Chevy Vortec V-8 Gas Engine (sticky gas pedal
From: Dave In mich.(dnafedewa@msn.com)
Date: 19-Nov-04
I have a 2001 cab1/2 2500hd chevy w/vortec6000 engine. My gas pedal is sticking, can be vary dangerous,if you are in a tight spot. you got to push quite hard when cold to get it unstuck ,sometimes when engine is warmed up. Does anybody have this promblem. It started around 35,000 miles,little at a time.now I have 48000 miles and getting worse. Gm dealer tells me it my injecters ? please email Thanks , Dave
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vncyng@yahoo.com
Date: 18-Nov-04
if your vortec is such a bother you can alway build an engine like the one i had in my 75 gmc 2500 van. i built a 350 with ported small chamber heads. a paw cam with 442 lift intake 465 lift exhaust 272 intake duration 292 exhaust duration stock qjet intake and carb. small tube headers and dual exhaust. trans was a th350 and rear was 3.42 gear. she got 10 mpg on a trip from idaho to connecticut while pulling a 3000 lbs trailer. this van flattened the biggest of mountains and made short work of long interstates. do it yourself and learn something!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: girl with truck
Date: 18-Nov-04
i have a problem with my a/c. everyone ive asked about it has a different answer so lets see how many you guys can come up with! it blows just fine hot cold whatever but it always blows out the dash vents! set on floor, defrost, whatever it always blows out the dash and blows just a little out where you set it to. i dont really think its the knob cause every once in a while it works just fine(for a few minutes).
Subject: RE: Chevy Vortec V-8 Gas Engine
From: girl with truck
Date: 18-Nov-04
i believe any time you replace a part you might as well upgrade! I am do for new plugs and wires. im sitting at about 103,000. i have a regular k&n filter (bought it the same day as the truck!) but i just came across (at jegs.com) the k&n fuel injection performance kit. it sounds pretty good.If i do go with new headers would it defeat the purpose to slap my flowmasters back on there or would it be best to go all new exhaust?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vncyng@yahoo.com
Date: 18-Nov-04
what most people fail to realize is that todays trucks are high performance machines. they should be treated the same as corvettes and vipers. the compression ratios hover near 10:1 and if you are using med grade fuel you will get detonation. carbon build up raises comp ratio br reducing chamber area in the heads. just a little carbon can bring the ratio up one full point. the vortec v8 is the best of there kind and should be handled as such. any 5000 lbs vehicle will have awful mpg so don't complain about 13mpg. keep your foot out of the engine and use your cruise control on long trips. it helps and keeps you from speeding. the piston slap at start up is due probably from the use of forged pistons. forged pistons are denser than cast pistons and shrink more than cast pistons when cold. when the engine warms up the tolerences are tighter and the slap goes away.why were the old trucks so rock solid reliable? because they were less sophisticated. remember your truck cost over 30k treat her that way.talk to an old hot rodder they know alot!!!feel free to email me.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to engine fire
Date: 18-Nov-04
Hi engine fire
Too bad, So sad... What happened? No coolant? clogged rad? broken gas line?
Tell us more! Enquiring minds want to know. :)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: engine fire
Date: 18-Nov-04
gm pick burn up do to engine fire
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 96TAHOE
Date: 18-Nov-04
Hey girl with truck. Save your money on the plugs and wires and keep the stock ones unless they are due for new ones (stick with the AC Delco's). You dont' want to "rice out" a chevy truck. If you want to increase performance with out getting a new engine a good intake system would be by airrade or anything with a K&N air filter on it. Go to www.truckperformance.com or www.jegs.com I think any brand of headers with a new exhaust system would do, preferably by Gibson.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: girl with truck
Date: 17-Nov-04
i have a 1997 z71 5.7L. i am trying to find out how to increase performance. i want to know the best plugs, wires etc. im also looking at new headers and air intake. any suggestions or warnings would be greatly appreciated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to Dan L
Date: 16-Nov-04
Hi Dan,
The manufacturer will tell you that oil consumption is normal, but if you are only adding a quart every 2000 miles, you really can't complain. Today's oils are thinner by design to reduce drag and cold starting problems and to improve fuel economy.
If you are concerned, you could try using a higher number viscosity oil starting in about April and until the weather turns below freezing. If you see a little puff of blue smoke when you first start up after parking all night, that could mean that oil seals on your valves are worn. Thicker oil will also help to reduce this loss. An oil additive such as moly-slip could also help keep things moving more freely without the need of going to a thinner oil for the winter.
Replace your Dexcool with a brand name (other coolant) and flush the cooling system or you will have bigger problems soon. If your heater blows cold and your add coolant light comes on from time to time, consider yourself warned. If you are loosing coolant the problem is already waiting to cost you some repairs. (Read back in the posts here) Look into your rad to see if there is a brown sludge coating all over things. That is what you must clean up.
Good hunting... Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dan L. in Calif.
Date: 16-Nov-04
2001 GMC Sierra 2500HD crew cab, long bed with Vortec 6000 bought it brand new, no knocks. 30,000 miles later, (almost exactly) knocks when cold, then goes away after warm up. My mileage is still good, but I have noticed I am losing oil, no leaks; but check oil comes on between changes. (Check oil, not change oil).
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Billgeorge15@hotmail.com
Date: 15-Nov-04
well for all you vortec lovers out there...wich they are not many i herd these days.....bit i have a 1995 chevy silverado lifted on 35 in what i did was go to a crate engine 350 no vortec put in a 400 crank cams lifters headers 3 inch exhaust all the way back and 4:88 gears in lockers in the rear now doing this cost me a good 6 grand in i blow away all vortec all little hondas in such so i really believe that you look into what i did instead of rebuliding your vortec...by the way i push a nice 390hp in 450 lbs of torq and at 70 mph im taching 2700 rps not bad
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 99 chevy
Date: 13-Nov-04
my 99"100,000ml" 5.3 started ticking with valvoline high milage oil. I switched to chevron 5-30 & no more tick.AS FOR THE WHOLE M.P.G. THING, JUST TAKE THAT VORTEC & RUN IT UP OPECS GREEDY ASS & YOUR GAS WOES ARE SOLVED!
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 12-Nov-04
Hi Gary,
It is more important NOT to use the Dexcool coolant.
Havr you tried flushing the system and then adding s tiny amount of vegetable based stop leak? It is used at the factory to assure no small leaks when the vehicle is manufactured.
It could prevent the leak form worsening and may stop it entirely.
Worth a try.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 10-Nov-04
unless your vortech is worn out not tuned or maint reg.youre propably looking at the #5 injector
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 96TAHOE
Date: 10-Nov-04
Misfire can be cause of bad distributor, plugs, wires etc.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: wjb36@bellsouth.net
Date: 09-Nov-04
what can cause cylinder 5 misfire ? this is the only cylinder that shows a misfire.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: dollingertt@cox.net
Date: 08-Nov-04
I have a '97 GMC Sierra K1500 w/5.0L engine. I developed a problem where it takes 3 - 4 minutes of cranking the engine before it finally starts. This is only a problem when the engine is cold and has been sitting for a while (i.e. first thing in the morning or after work). Mechanics said it was a leaking injector spider assembly, which is common for this vehicle. I have replaced the complete injector spider assembly and fuel pressure regulator. I have replaced the fuel filter, plugs and rotor.
The key on/engine off test provides 55 psi from the fuel pump. The engine runs at 55 psi and when shut off, the pressure climbs to 60 - 61 psi and holds steady. However, the problem still exists.
The question I have is that the fuel pump specs. call for 60 - 66 psi. Mine is putting out 55 psi in the key on/engine off test. I don't see this as the problem, however, could the 5 psi difference be the problem or am I missing something else?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vortec "knock issue"
Date: 08-Nov-04
have a 96 gmc with 5.7l @ 48,000 began to use coolant w/cold start knock. r&r intake gasket due to hard failure at gasket. 84,000 pulled it out due to gasket failure and wife. only got to 260 when i pulled in the driveway. complete rebuild of eng was needed. disassembly showed a poor design issue at the head to intake joint. gasket may hold for the warranty period.
all interal parts showed damage due to coolant in lube oil. this is going to happen with this joint. way we delt with this issue is to rework heads and intake. 3,000 on the rebuild. 298hp 395ftlbs on the dyno. need to dump the dex-cool accelerates this issue due to the make-up of the intake gasket.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Tim Calif
Date: 08-Nov-04
I have a '96 5.7L 1500 that is leaking water either out the back of the intake manifold or a screw in sensor just behind it. It looks like a few other people are experiencing this problem. Is it the intake manifold gasket or that fitting that is failing. Is it a common problem. What are the recommendations for repairing it?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: daryl
Date: 06-Nov-04
went through the knock issue with 5.7l from 28k until eng failure at 80k. two intake gasket changes. eng serviced every 3700mi by way of schedual oil sample, k&n 10 micron filters valvoline 10/30 full syn lube oil, rebuild process showed issues with the cylider head to intake joint (no way the joint will last) change the coolant, silicone composite gasket and ec-1 coolant don't work (put the green stuff in it). $600.00 in machine work to rework heads and block, quality replcement stock parts, and some labor of love.
oil samples showed coolant in lube oil from 17k right throw til falure. mass production is not the american way
failed parts: multipul lifters win scored boress due to coolant. heavy brg fatigue due to coolant contamination.
been running grate for 3 months now, 2200 on the rebuild and no knocking
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 06-Nov-04
Just wondering if anyone who posts here with a problem ever comes back to check for replies?
Hopefully, some of the replies are of some help to those who just read the posts.
Good luck to all.
Remember.. engineeers need job security too. That may be why they never get anything 100% right the first time. :Q
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Erick
Date: 04-Nov-04
1996 Tahoe. Two radiators, Three fuel pumps, One radio, One Gov-lock rearend repalced. CAUTION: When this motor overheats one time your toast. I have been in a fighting with oil and water mixing in my motor for 6 months. DO NOT use the aluminum type stop leak in your radiator. The little particles of aluminim find the lifters (unless you like the soild lifter sound)in your engine and play havoc with your oil pressure until your engine heats up. Every two weeks I drain Mobile 1 and an extra gallon of antifreeze from the motor. I love the Tahoe but this is one Ho thats got to go!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Erick
Date: 04-Nov-04
1996 Tahoe. Two radiators, Three fuel pumps, One radio, One Gov-lock rearend repalced. CAUTION: When this motor overheats one time your toast. I have been in a fighting with oil and water mixing in my motor for 6 months. DO NOT use the aluminum type stop leak in your radiator. The little particles of aluminim find the lifters (unless you like the soild lifter sound)in your engine and play havoc with your oil pressure until your engine heats up. Every two weeks I drain Mobile 1 and an extra gallon of antifreeze from the motor. I love the Tahoe but this is one Ho thats got to go!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: don
Date: 04-Nov-04
2001 gmc 6.0liter it sucks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Problem
Date: 02-Nov-04
Ok...here's my problem...I have a chevy? Enough said.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 31-Oct-04
HI Ron H,
I don't blame you for doing what you do with yearly coolant changes.
I hope you have stopped using the dexcool entirely and have moved to prestone or another brand name.
If you are not loosing any coolant as time passes, continued good luck to you. If you are loosing any coolant, there is a sealant additive called Quick Seal, which is tiny flakes of copper or brass that circulate in the coolant to plug any tiny leaks in the manifold. It is a cheap fix that could save taking the manifold off to replace the gasket. (It will NOT clog radiators.) I believe you can get it from auto parts suppliers in the US. Canadian Tire has it in Canada and it is distributed from the US.
Take care and thanks for passing on the info.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: brasilmichaele@sbcglobal.net
Date: 31-Oct-04
what is the best chip upgrade for the 5.3litre in a 2003 Cherolet Express Cpnversion van. thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron H
Date: 31-Oct-04
I have A 99 Chevy Sub with 5.7 vortec.70,000 miles.At about 40,000 miles devloped coolant leak at intake manifold. Changed out intake manifold gasket,flushed coolant sys and have been flushingcoolant sys once A year.haven't had any leaks since.Runs like the first day I bought it.What happens is the Dex Cool coolant that comes with your new vechile starts to turn acetic and starts eating away at your intake manifold gasket.change that coolant and I'll see you down the road
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 30-Oct-04
Hi MCF,
You might want to check with the motor vehicles department in your area to make sure that there are no major changes in pollution controls that would be expensive to adapt.
Usually, one can not go wrong by putting a NEWER motor into an older vehicle. Going the other way sometimes has limitations.
You may want to change differential gear ratios to improve gas mileage if you do switch motors. You won't need such high RPMs with a more powerful mill. A two speed rear end would be the best of both worlds.
Good luck.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mycoldfeet
Date: 30-Oct-04
I have a 99 sierra with a 4.8 v8 in it with an automatic trans 4L60E and thinking about dropping a 350 LT1 in it, the 350 is a 96 and computer and harness comes with it, anyone know if the 350 will bolt up and any problems I might run into, love my truck but the 4.8 is more expensive to rebuild than i thought possible, a gm crate motor is more than the trade in price lol. then I'd still be stuck with all the high milage accessories. Any input would be appreciated, ps the 350 LT1 has only 2100 miles on it complete. thats my big reason for the change thx all.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to DEAN
Date: 30-Oct-04
Hi Dean,
You didn't mention which codes are coming back... Have you ruled out a problem with the "Mass Air Sensor" and the "Throttle Position Sensor"?
It sounds like you are not getting the proper start mixture or the computer thinks the vehicle is already running. Have you tried pumping the accelerator a few times BEFORE turning the key?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: andre
Date: 29-Oct-04
i have the same no power problem.mechanic can't find problem,it ticks me off.we did change the egr valve and it did give me alittle more power.i have a 1990 sierra z71 side step.new pipes.new converter and new y pipe.power you won't believe for 1 week could not believe it.then,slump.a moped.anyone with advice please get back.they say it might be an air flow problem.i'm burning gas like its free.e'mail me at adpalermo@rogers.com. thnaks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: elmer
Date: 29-Oct-04
i changed the intake gaskets on chevy 5.7 need to know how to set the distr.back
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mr. gdw
Date: 29-Oct-04
Today is the first day i have visited this disc. group... I am amazed of all the people who have these 95 and newer vortech's and the only good thing i'v heard said is THEY'RE POWERFULL you cant take civil action against GM If its under warranty you can arbitrate after 3complaints of the same problem they don't have achoice but to buy it back.As far as piston rattle on the 99 newer vortech GM was supposed to come up with a easy fix solution by 12/01 or start replacing engines by 5/03 due to double production time, thats just what came across my service advisors desk back in summer 01 Do not use anything other than vegetable tabs to seal your vortech cooling system after a head set,intake set/or water pump, get rid of DEXCOOL its not 150,000 mile coolant its 5 mile coolant, its liquid mud, any temp over 230 solidifies it gm wont admit it but thats the way it is. have fun with your GM products
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mr goodwrench
Date: 29-Oct-04
Good morning everyone,If you own a 5.0 or 5.7 vortech and are experiencing intake leaks, rest assured its normal, its a easy job to replace intake set set the timing with a tech 2 or equivalent scanner +2 -2 0 IS PERFECT,As for your 99 and newer vortechs you will never get rid of the rattle due to design flaws they have 2 teflon pistons to help in balancing when you start engine cold teflon piston has to heat up to expand gm has bulletin on you have to make them show it to you as for misfire problems you first need to replace the fuel filler rubber tube its made of SHITTY RUBBER melts when you put gas in clogging injectors
these are the places you need to be looking for answers
Subject: RE: Chevy Vortec V-8 Gas Engine
From: dneuf2@hotmail.com
Date: 28-Oct-04
I have a 96 tahoe 4x4 that was beginning to crank longer and longer during starts (have experienced this before, as fuel pump was going out). I replaced the fuel pump preemptively. The truck ran great for about 30 seconds, so I considered the job done. The next morning the truck stumbled and shook violently, and check engine light flashed. I figured the new pump for a dud and suspected low fuel pressure. I first changed the fuel filter thinking that I may have knocked sediment loose during repairs: no such luck. I went ahead and put the old pump back in, but of course, no difference. Now the truck is as it was, except for a new fuel filter, but the stumbling and "check engine" flashing is still there. I figured I may have moved the exhaust pipes around during the fuel pump romoval, but the O2-sensors are all intact. I never touched anything under the hood, and I have absolutely no clue what else I could have damaged (I've tried clearing the codes... They come right back). Hopefully someone has either seen this before, or can think of something I haven't, because I'm out of ideas. Also, This is the second time I've changed the fuel pump... The first was a success, so there is nothing tricky about it. There just must be something I'm missing.
Thanks, Dean
Subject: RE: Chevy Vortec V-8 Gas Engine
From: troylgraham@sbcglobal.net
Date: 27-Oct-04
Does anyone know how to decipher the engine code on the front passenger side of the engine? It reads T0617XDY. It's supposed to be a 1996 Vortec 7.4 or 454.
Thanks, Troy
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to PTerrill
Date: 27-Oct-04
Hi Pterrill,
If you go to your dealer, they can put a flight recorder on your ignition system and you can drive around with it recording when you want it to capture a problem. All you do is press a button when the problem occcurs and it captures the last few minutes before you press the button.
That will be the key in figuring this out.
My guess is that the wire to the distributor cap that connects to the reluctor (pick-up) is going open when the truck is working hard and causes the stalling. You can wiggle this wire when it is idling to see if you can cause the engine to stop. This has been a problem with some disributors for many years.
Good hunting.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: TAHOE MAN
Date: 26-Oct-04
HEY GS I FEEL YOUR CONCERNS REGARDING THE VIBRATION. I HAD THE EXACT SAME THING AND IT WAS THE PITMAN AND IDLER ARM.
NOW FOR MY PROBLEM...ANYONE KNOW HOW MUCH IT COST TO REPLACE A U-JOINT?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: GS
Date: 26-Oct-04
I have a 97 Chevy Z71 w/ a 5.7l vortec engine. The truck has been a great truck but has developed a vibration on heavy accelerations between 50-70mph. Hooked the computer to the truck, the check engine light was coming on and it said I had a missfire on #4 cylinder, changed #4 injector and new plugs and wires. Seemed to do better for a while. It runs great other than that and runs fine when you don't get down on the accelerator. Any suggestions on what may be causing this problem. You can feel the vibration is the gas pedal as you are accelerating and it vibrates the truck.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: pterrill@socket.net
Date: 25-Oct-04
Sorry, I forgot my email on above HELP
Subject: RE: Chevy Vortec V-8 Gas Engine
From: pterrill
Date: 25-Oct-04
HELP!!! I have a 99 tahoe with a vortec 5700 V-8 engine. It dies while driving down the road. It first happened while driving at a slow speed. But it does it at high speed also. When it first happened, I had plugs put in, fuel filter and air filter changed. Also had a fuel pressure test done. Two days later, the service engine soon light came on. When tested, it gave a 300 code, which they told me was a random misfire. I had plug wires put on. It still dies while driving down the road. So far, it has started back everytime. When driving it, I just put it in neutral, restart it, and keep driving. Does anyone have any help?????? Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Peter SA
Date: 25-Oct-04
I tweeked my V8 5700 Vortec on my 97 chevy and I street raced it and his a dog now I got to clean my hood of hair
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mowrys@multiband.tv
Date: 24-Oct-04
by the way, it does this only while towing and it was 5 and 6 that was misfiring. I have replaced cap, rotor, plugs, wires, all AC Delco. I run 5-30 Amsoil, truck gets regular service and has never been beaten up.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mowrys@multiband.tv
Date: 24-Oct-04
How about this one. 97 z-71 with vortech 350. Multiple misfires only occur while pulling a trailer. About 2500 rpms the trans shifts into O/D and then the check eng light starts flashing at me. Pull shifter down to 3rd and the stupid thing runs fine. Dealerships cant figure it out. They see the multiple misfires and think I need to have all the injectors replaced. However the service manager has the exact same problem and it didn't fix his. Don't think I am going to spend the 1,100 dollars on that waste of parts. ANY help would be appreciated. I am a Die hard GM Man. But I would like to see this fixed.
email; mowrys@multiband.tv
Subject: RE: Chevy Vortec V-8 Gas Engine
From: snatchsmeller
Date: 23-Oct-04
I have a 2004 silverado extended cab 2 wheel drive w/ the 5.7 fuel injected vortec and I would like to know if or how I can adjust the idle on it.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: RDY4WAR
Date: 23-Oct-04
I am considering purchasing a used 1997 Silverado w/ 7.4L votec engine, dealer claims the mileage should be about 7 miles per gallon? That can't be right, does anyone know for sure by experience what it actually should get under normal use? Or direct me to a site where I can find out.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: BEATTHEHELLOUTOFIT
Date: 21-Oct-04
I run a '98 GMC 1500 4x4 Z-71. I have installed a Jacob;s off road ignition with ultra coil, uphill power module,secondary trigger, and plug wires. Also i have installed a K&N FIPK kit and flowmaster true duals. Along with a JET SCU 2000 speed control unit. I am on the 3rd set of BFG All Terrain tires becasue I am so hard on this vehicle. Besides having to get the 4x4 wiring harness for the front, the vehicle has been flawless. I did change the battery to a Optima yellow top too. I am getting almost 14mpg around town and 21 on the road. So far with 81,000 in it I can't complain.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron (reply to John re: firing order)
Date: 16-Oct-04
Hi John,
I hope this post I found, is what you need... http://www.enginepowersource.com/html/gm_5_7l_v8.htm
Subject: RE: Chevy Vortec V-8 Gas Engine
From: John
Date: 15-Oct-04
could someone tell me the firing order for a chevy silverado 350 5.7 liter v8 engine
thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rdub89
Date: 14-Oct-04
I have 2000 silverado 4.8 103,000 miles starts perfect in the mornings when cold but in the afternoon when warmer outside it has to crank for about 8 to 10 seconds which isnt right fuel pressure is ok I replaced the plugs and fuel filter anybody else have any suggestions? I have been told maybe oil pressure sensor or crank shaft position sensor could be the prob.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron (reply to MikeP)
Date: 14-Oct-04
Hi MikeP,
Be happy that you have to take the heads off to do the valve seals. That way you will get your money's worth and deal with two birds with one stone.. If you need to change a bent or scored valve it will be so much easier. That dexcool may have gotten into your oil and damaged the pushrod and the valve lifters as well as the cam lobes, so don't ignore visible wear or you may have to take it apart again.
There is also a newer gasket that is supposed to be used for rebuilds which is supposed to be resistant to dexcool. You may not need that gasket IF YOU USE PRESTONE or other aftermarket coolant. It will be a tough decision since the newer gasket appears to be better and partly plastic. Don't forget that it is your decision, unless you find a parts person with a lot of experience about what is working better.
When you are finished, don't forget to add some "Quick Seal" to the rad coolant.... It is a fine copper or brass powder in a liquid supesnsion which will flow into any voids and seal them to prevent any tiny leaks from getting into the combustion chambers. Many truck manufacturers are using something similar (like rad stop-leak) on the production line to reduce the chance of early failure before the warranty is up. (Could that be why they recommend that you do not change the coolant for 100,000 miles?)
You can get "Quick Seal" at Canadian tire, so ask about it at your "Pep Boys" or other parts chain.
If you need more info, let me know here.
Good Luck.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mikep@plano.gov
Date: 13-Oct-04
I have a 90 1500 pickup with a 5.7. It now has 140K mi. on it, and for the last 80k mi. it "puffs" bule smoke out tailpipe for a few seconds when you start it up. I have heard this is due to valve guide seals. I have also heard its due to a leaking intake gasket. Who is right? Whats the best way to fix it? Thanks.......
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 13-Oct-04
I HAVE THE SAME PROBLEM W/ MY 5.7 V8 (LEAKING FROM THE INTAKE MANIFOLD IS THEIR A FACTORY RECALL ON THIS PROBLEM???
Subject: RE: Chevy Vortec V-8 Gas Engine
From: red z71
Date: 12-Oct-04
i have a 99 chevy 4wd with the 4.8 and a 5 speed. the truck has a hypertech programmer (at the 93 octane setting) and an air raid, it is getting 19mpg with factory tires and factory 3:73 gears
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 11-Oct-04
Hi Gilltowner...
Have you checked the fuel injection fuse?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: knock,knock,raddle,raddle,we hear it 2 miles away.
Date: 11-Oct-04
chevy????? why,why,why, i hope gm wakes up or they wont be around 10 years fom now. and i hope gm takes care of all of their die hards,or they will shop else wear. sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad,sad, !!!!!!!!!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: shawn
Date: 11-Oct-04
I HAVE A 2002 CHEVY SILVERADO 1500 HD PAID 30,00 2 MONTHS AGO 50,00 MILES ON IT. PUT 5,000 IN CUSTOM BODY PARTS. ENGINE ALL FACTORY 6.O 350. 480 A MONTH PAYEMENTS RIGHT AFTER I BOUGHT IT ENGINE KNOCKS AND LIFTERS CHATTER WHILE DRIVING DOWN THE RD. AND I CAN HEAR THEM AT A STOP LIGHT OR AT MC DONALDS DRIVE THROUGH ECOING OFF THE WALL. IM DIE HARD CHEVY SINCE 16 IM NOW 30 I CALLED GM AND PUT IT IN A DEALER SHOP TO GET A DIOGONISTIC ON IT COST ME 75 DOLLARS TO SEE IF THEY WILL FIX IT. IF NOT..... I WILL NEVERRRRRR BUY ANOTHER CHEVY AGAIN (NEVERRRR) ILL TURNE FORD ALL THE WAY OR TOYOTA MY CHEVY TRUCK LOOKS BETTER AND TUFFER THAN ANY FORD,DODGE,TOYOTA IN MY CITY OF TOLEDO,OH. BUT KNOCKS AND CHATTERS AWAY. SO THOSE WHO DEFEND THE CHATTER,OR KNOCK GET A LIFE YOU PROBABLY CANT AFORD A NEW TRUCK AND ARE SPEAKING FOR THE OLD GOOD TUFF CHEVY REPUTATION NOT THE NEW. SO GM I HOPE YOU SMELL THE COFFIE AND WAKE UP AND TAKE CARE OF THE OWNERS WITH THESE PROBLEMS OR WE ALL WILL TURNE ANTI CHEVY AND TRADE THEME IN ON NEW FORDS OR OTHER NONE GM TRUCKS. SAD BUT TRUE !!!!!!!!!!!! E MAIL ME, AQUAPONDLLC@SBCGLOBAL.NET
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 11-Oct-04
Where is the thermostat on a 1999 chevy blazer (4.3)?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Bill
Date: 11-Oct-04
I have a 1996 Chevy with a 350 Vortec Engine that had the same problem. Replaced the intake manifold gasket and promptly blew the head gasket within 40 minutes. The manifold was also warped. Nice going GM with this one. Had to replace the engine and manifold and it's still in the shop.
From what I've found out there should have been a recall with this engine.
Bill
Subject: RE: Chevy Vortec V-8 Gas Engine
From: gilltowner
Date: 10-Oct-04
I was running about 70mph and doing great when all of a sudden it was like i shut the switch off and the fuel gauge,oil gauge and the speedo all took a dump at the same time. now it wont fire and the fuel pump isn't coming on. I dont even know where to start looking. can some one please help. thank you.
Subject: RE: Chevy Vortec V-8 Gas Engine(reply to Bigdaddy)
From: Ron
Date: 09-Oct-04
Hi Bigdaddy,
Have you tried a little silicone grease on the o-rings?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: bigdaddy
Date: 08-Oct-04
To anyone who's done the intake gasket replacement job and removed the upper intake. How did you get the fuel injector pack to fully seat into the upper intake.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 200,000 miles
Date: 06-Oct-04
mine knocks too. only when cold runs good though
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mario in Hawaii
Date: 05-Oct-04
In have a GMC 1997 GMC suburb. as soon as the warranty ran out I started it and I got a rouph idle and the discovered I was losing water every 2 o 3 days. After about a month of just filling the water and turning up the music trying to forget about it. I had a friend plug the D#$ thing in the computor to discover a had a misfire in #4 cylinder and all of the exhaust senors were failing. I did a compression #4 was low at 70-80 psi. Im going to check the distributor packs to see if thier is a spark to the spark plugs. (which where changed) Im hoping it's just a small problem that doesn't require shaving the heads or maybe replacing the engine. The as#%#$%# car salesman who sold me the truck brand new cheated me on the deal anyway until I got a lawyer. I should have arrested him when a had the chance for DUI. I hearing stories that this group of chevy and GMC engines were made in mexico at cheap labor cost. Makes me want to go back to the dealer in Maui and have a talk with him that he want forget..............
Subject: RE: '95 Z-71 350 - V8
From: Changing Oil Pump - Have you been there?
Date: 05-Oct-04
I'm planning on replacing my oil pump w/ a new high flow one (my mileage is 118k), and was wondering how long this has taken others and/or if I'll be able to do it without having to drop my engine. It is 4 wheel drive, so the only thing that appears to be in my way is the cross-member which I can remove to drop the oil pan. Any takers?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Frustrated
Date: 04-Oct-04
HELP!!! I have a 2000 Silverado 4.8 Vortec. I just turned 100,000 miles on it. I decided to change the spark plugs and since then it will not start when its warm. I have to hold the pedal to the floor and I can smell gas after it starts. What can I do? I don't have this problem when I first start it in the morning. Hopefully its something I can take care of.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: sarah
Date: 03-Oct-04
The truck sucks, i have had to do so any repairs on it, just kidding it's great ilove it
Subject: RE: opinions on buying a 5.3 vortec
From: mike in atlanta
Date: 02-Oct-04
I was looking into buying a 2000 5.3 vortec silverado, it has 87k. i test drove it, it ran pretty good. Do you guys think i should buy it???
Subject: RE: Chevy Vortec V-8 Gas Engine
From: crutchy@verizon.net
Date: 01-Oct-04
I have a GMC yukon XL 8.1, Yes I have had problems and still have problems. The motor blew up at 28000miles, then GM replaced the complete motor, however now 12,000 later I still have the same knocking noise, no it does not go away. Yet GM nor the dealership will do anything
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Roy Rivera
Date: 01-Oct-04
I have a 3500, van with a 5.7 Liter V-8 well it quits running after replacements of a Ignition coil and magnetic pick up, and a rotor, it rans for maybe a minute and it quit and doesn't want to start up again, can you help here?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: marvp
Date: 28-Sep-04
i forgot on earlier post, send any reply as soon as you can to mpensala@co.lake.il.us thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: marvp
Date: 28-Sep-04
have a 96 gmc 5.0 vortec, hard starting after sitting overnight.turns over fine, and starts fine the rest of the day, even if i start it 20 times during the day. next morning, same thing, turns over, but doesn`t fire. changed plugs to ac iridium, checked firing, all okay. any ideas out there? thanks guys
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ron harvey
Date: 27-Sep-04
I have a 1998 chevy siverado with vortec v-8 5.7 and my air condtion will not blow cold or out of vents it only blows on top.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jtaguer@dbnj.com
Date: 27-Sep-04
HEY DOES GM EVER GET A COPY OF THIS OR THE FTC. NICE TO COMPLAIN BUT DOES IT GET ANY ACTION.
I HAD A '97 TAHOE 5.7L I purchased new. In Yr 2000 @50,000 mi I had a leaking intake manifold gasket. Fortunately I had the extended warranty. Cost would have been $800.00. In YR 2004 it reached 102,000 miles, just off the 100k mile warranty and it had a very small crack in the intake manifold. Cost over $1,000.00 to replace the manifold.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 2wd in alaska
Date: 26-Sep-04
i have owned my 96 gmc ext. cab short bed pick up for about two years. i bought it with 177,000 miles on it in s.e. missouri and did a quick service on it and started out for the alcan. i packed a 3 bdr mobil home in the back of it and in a small trailer i was towing. my fuel average was 17mpg for the 4600 mile treck across the us and canada. now that its empty i can get a whoping 24 mpg out of it and heres my secret on how i do it. first of all i should tell you that it is a 5 speed 2wd. that helps alot on the fuel economy. the best way to get good fuel milage out of your vortec is proper care and service. i run the bosh double platnum series plugs with a borg warner 8mm plug wire. the o2 sensors are a key in fuel milage. they reccomend replacing every 100k miles but i reccomend every 70k. i know it sounds excessive but every time you have the oil changed you should change the air filter and pcv valve. an engine that dont have to stuggle for air will improve on fuel milage and horsepower. my recomendation would be like a k&n air filter. you dont have to replace them as often because the retailers that deal in them have recharge kits thats availible. they are a performance filter that allows a higher level of air into the intake. i have found the 5.7 vortec to be a very fun and dependable motor. i have also found that in my heavy old pick up with a stick shift that the L1 corvets have a tough time keeping it from light to light. but one of the biggest keys in getting good fuel milage out of them is to resist the temtation of putting your foot in the peadle just to hear the tires bark. i now have 191,000 miles on my pick up and its still going strong. if anyone needs any information or if i can be of some help please feel free to contact me at frozeinalaska@yahoo.com . have a great day and good luck to all you gearheads.
Subject: insprational songs saying
From: stephy and edward
Date: 26-Sep-04
and please where do i download it because i cant find it.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: wcpenrod@yahoo.com
Date: 25-Sep-04
I have a 1996 GMC 1/2ton 2wh drive 5.0. Extreme rich condition at times. Anyone have any ideas out there as to what is causing this. I have replaced several things and have not cleared up the problem. I am totally frustrated and would appreciate any ideas>> Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 25-Sep-04
Vortec 5.7 1998 vintage 30,500 miles. Well I paid out the ass to have the intake manifold fixed today at one of GM dealers here in Alaska. $95.00 per hour shop rate, 4 hours, and $180.00 in parts gaskets, oil change, antifreeze etc,total bill $580.00 out of my pocket. This was my first Gm vehicle, $30,000 Sierra pickup,and it will be my last GM vehicle. Front brakes and rotors redone at 12,000 miles, power steering hoses replaced 15,000 ball joints and tie rods all replaced at 15,000 miles, central port fuel injector replaced 19,000 power steering PUMP replaced at 19,000 engine cooler lines replaced at 19,000, alternator replaced at 28,000, water pump replaced 29,500 miles and last but not least the infamous INTAKE MANIFOLD GASKET, REPLACED 30,500 MILES.I want to mention this truck has Never seen abuse of any kind what so ever. Would I EVER purchase another (GM)product? ^*&%^&&(& NO!!!!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: shad754
Date: 23-Sep-04
any news on the 2004 suburbans 5.3L
Subject: RE: Chevy Vortec V-8 Gas Engine
From: drhooklures@yahoo.com
Date: 20-Sep-04
I have owned several chevy trucks from 1978 until present I bought a 2001 Z71 Extended Cab (NEW) from a larger G.M. dealer. It has the 5.3 Vortec engine, it developed a tap in the engine at around 5,000 miles. The dealer said it was normal noise for this engine. At about 20,000 miles it developed a knock at start up for around 20 seconds. Dealer said this was normal. At around 80,000 miles both tapping and start up knocking had became louder. Dealer still replies this is normal.I have had truck serviced every 3,000 miles.(I was a G.M Tech. from 1978-1983) This noise is not normal! I had bought extended warranty at purchace date (100,000 miles) I asked dealer to replace engine at 90,000 miles. He said G.M. would not pay for it,this was normal wear noise. The engine dropped a rod at 102,000 miles. I replaced the engine which has 20,000 miles on it at this time. It knocks as bad as the first did at 80,000 miles. (G.M. WHAT HAS HAPPENED TO YOUR QUALITY) G.M. will not help You on the cost. What can I and others do about this. I can't afford a class action suit on my own. Does anyone have any suggestions on what to do to recover my loses because of bad engines. If so, Please let me know.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: noisy fuel pump on a 1998 GMC with 5.7 liter
Date: 18-Sep-04
I purchased this truck with 130,000miles and just noticed in the last two days that the fuel pump is quite loud. It seems to be working fine but I also noticed that my gas gauge will move on its own between empty and full but will settle down on the amount of fuel I have.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: johnsonrosanne@shaw.ca
Date: 14-Sep-04
Knocking woos !! You all might try replacing the knock sensors - not one, but both. Double check those wires and connections for any faults. IE..., dirty, greasy, wet, corroded, frayed. The onboard computor does not turn on the dash light unless there is an absolute problem. As the sensors and wiring may just be barely working as per the specs being put out through the computor. (that is why they are called idiot lights.) It is this knocking that ruins the insides of engines and eventually will cost you thousands in repair bills. Good mechanics are hard to find, but once you find one, they are like gold. I recommend GM original parts. You may have to ask if there might even be a change up part for your particular model. Do not be shy, ask those questions. Don't pretend you know it all, because if you did you wouldn't be having these problems! I also recomend Castrol 5W/30 full synthetic engine oil with a GM or Fleetgaurd filter. It has helped my knocking woos. I own a 2002 Chevy 2500 4x4 extended cab with a 6.0 vortex. (I traded a 2002 ford ranger for this truck and have been happy ever since-I hope this continues.) Allthough I have not heard of many knocking problems with the 2002's. This might help you too. Good Luck To All. Please keep me posted.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 14-Sep-04
That 98 Sierra in Alaska, has the 5.7 I might add. This truck still looks like it came off the assembly line, with only 30,000 miles on it. It makes me sick, to think that this truck is falling apart in the dam drive way. It's never been abused wifes vehicle,from what I have read on here,am I understanding things correctly, that if your vehicle shows signs of this antifreeze leak on the outside,that its also leaking on the inside as well and contaminating ones oil? Would appreciate some feed back please on the subject, and some imput on how to put some pressure on Gm. Thanks in advance
Subject: RE: Chevy Vortec V-8 Gas Engine
From: blown away
Date: 14-Sep-04
I forgot to mention that all my other cam lobes and lifters looked good. I took the cam and lifter to my local chevy dealer and they said it looked like a machined service defect but since im no longer under warranty all they could say was sorry. So it seems that chevy does not have to own up to there mistakes. I too am a die hard chevy man, but this is starting to make me consider other options. vort3c2001@hotmail.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: blown away
Date: 14-Sep-04
I have a 99 chevy 5.3 . I have had the front differential rebuilt after it grenaded. It still makes horrible noises and has been torn down twice since and the wear patterns are good. I have 75,000 on my motor and the front cam lobe and lifter went to shit. I have all my oil changes performed by my local chevy dealer. They wanted $5000,00 to put a new engine in. They couldnt find the problem and I tore the engine out myself and replaced all the bearings, gaskets, oil pump, timing chain, cam and one lifter. I blew out all the oil galleys on all parts and block. The only thing I didnt do is replace the cam bearings since I have never done that. Had a good shop do that. Started it up and at idle my oil pressure fluctuates from 0 go 20 with no oil to my rockers. If I high idle it, the oil pressure runs at 40 but still no oil to rockers. I need a flow chart for the oil through my block, and any ideas would be greatly appreciated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ssbc@gci.net
Date: 13-Sep-04
Another owner of a 1998 Sierra 1/2ton with 30,000 orignal miles. At 28,500 alternator went bad, 29,000 water pump went bad, now at 30,000 guess whats leaking,intake gasket.Extended warranty ran out in April,never got to use that (money wasted)When I called Gm, to ask for help, they basically said sorry. Mine is leaking down in the front of engine,dripping down on the tie rod.It appears that right under the thermostat on the manifold itself to be wet,does this sound like an intake manifold leak to the rest of you. Thanks, in Alaska.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 2002 2500HD 6.0L
Date: 13-Sep-04
I have had the same knocking noise since new. I love my truck except for the embarrassing knocking when I start the truck. I'm going to voice my complaints to the dealer for the first time later this week. Has anyone had any luck getting the problem fixed, or a new engine replaced for free, since I'm still under warranty?
Subject: i have air fuel mixture problems
From: thinus
Date: 13-Sep-04
i have problems (350 vortec '96 cheyenne 4x4)my air/fuel mixture goes up to 13.0 instead of 14.71 as suppossed to when i ran it constandly on the dyno can anyone help me please i live shithole SOUTH AFRICA no chev agents here.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: CHEVY CEO
Date: 13-Sep-04
Hi I'm the CEO of GM. I noticed your concerns about your GM/Chevy Trucks/SUV's. We take carefull consideration of people's problems & I assure you your complaints are taken very seriously. We have high volumes of cars coming on and off the line. We run through carefull inspection of each vehicle before it is sold at the dealerships. I assure you GM is proud to be America's best selling cars & trucks.
Have a great day.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Narada Jerry
Date: 13-Sep-04
I have an 03 Chevy Avalanche 2500. My only concern is on start up it makes a noise that sound familiar to that of a diesel engine for a short period of time and then it stops. Is that how it is supposed to sound ?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: disgrunteled vortec owner
Date: 12-Sep-04
I too have a 96 Yukon with just about all the same problems as everyone else on this web site. I too have found the leaking intake gasket and now want to know if it can be changed by me or should it be taken to a mechanic. I also have the same problem with the misfiring as well. I am hoping this will fix the two problems. If anyone has any advice please e-mail me at the address below. Also if there are any good web links to check out addressing these problems as well. Thanks Kevin
kgranata@lancastercountysc.net
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 12-Sep-04
Hi Walter,
The carboning up could be due to coolant leaking into the heads. Did you ever have the intake manifold gasket replaced because the add coolant light kept comming on?
Have you been noticing that you need to keep adding coolant since the engine work was done? Did you get the red Dexcool out and replace it with the green stuff? You should.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: kgranata@lancastercountysc.net
Date: 12-Sep-04
I too have a mifire in my 96 Yukon on the #6 plug changed plugs, wires, etc. But it still misfires when it idles. When the gas is mashed it goes away. I haven't found anyone to give me a reason for this. Any info or tips on what to do would be greatly appreciated. I have heard on of my friends say that it can be linked to the intake gasket needing to be replaced. Also one other thing if this is the case how do you change it other than going to the dealership. T
Subject: RE: Chevy Vortec V-8 Gas Engine
From: E67caminolan in minnesota
Date: 11-Sep-04
I have the same question as Dave R. asked on 03,May 2003 about the replace procedure for the 98 vortec v8 intake gasket and any difficulties involved. I appreciate your help.Thanks Lanny F.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: JOYCE IN SAN ANTONIO
Date: 09-Sep-04
WHY DOES MY LEFT DRIVERS SIDE WHEEL FEEL SO LOOSE AND IT SEEMS TO WABBLE WHEN TURNING LEFT OR HITTING BUMPS. I HAD IT AT THE CHEVY DEALER SEVERAL TIMES AND THEY SAY IT NEEDS GREASING AND NOW 4000 MILES DOWN THE ROAD AGAIN IT DOES IT. THIS IS THE THIRD TIME . ALSO THE STERRING WHEN I TURN SOMETIMES MAKES IT DRY NOISE WHEN I TURN.I CAN FEEL IT IN THE STERING COLUMN. AGAIN I HAD IT AT THE DEALER SEVERALTIMES AND ALL THEY SAY IT NEEDS GREASING AND IT DOES IT AGAIN. HELP. WHAT SHOULD I DO? ITS A 2001 CHEVY TAHOE.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Walter
Date: 09-Sep-04
Have 1999 suburban with V-8 Vortec. Engine Service Soon light came on. Dealer stated carbon build up on valves caused light to come on after engine tear down. Maintain vehicle - 68,500 miles. Mechanical insurance will not cover. Is this a normal problem with valve heads?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: KNOCK AND HAMMER
Date: 07-Sep-04
I have a 2000 z71 with a 5.3 in it. I had it to the dealed about 10 times for rear end noise which finally got fixed but is now doing it again at 70000 miles. I had the lifter noise in the mornings even when it was new. Like everyone I complained to everyone including GM and they told me it was normal morning start up. Now the tick is a load knock after starting and excellerating for the first half a block. I am a Chevy man and the rest of the truck is great, but this engine thing is going to send me to a Ford dealer this year.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mark
Date: 06-Sep-04
Which is the #5 cylinder on a 1999 Z71 5.3L engine?
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 06-Sep-04
we have a 97 chevy 350 vortec, and we just changed the intake gascots and now we need help on the timing. how do we time it?
Subject: get a life
From: claleff@cox.net (jamie)
Date: 05-Sep-04
I have recently bought an "87" silverado suburban. In six monthes we have replaced the fuel pump twice gotten a new battery, new distributer cap wires and spark plugs, filters, hoses,ignition ciol and water pump. Big Red still floods and dies at low speeds but at least I'm not a spioled rotten ingreat. I'm looking for advise on waht to do next and all I see are a bunch of grown men whining about a knock. My truck is easilly 15 years older than yours, yes it has a different engine in it that doesn't knock but PPPAALeas! Did any of you stop to think that maybee you shouldn't ROMP on it? Horse power is good and all but it is not for every stop light!
And to those of you footing the "bill"... What ever happened to giving your truck the same respact you would give your woman? "87" or "2001" they still need TLC so quit bitchen about the cost of dealership mechanics and start doing some more yourself.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Montana4x4
Date: 04-Sep-04
First off, 5/30 weight oil is thinner viscosity than 10/30 weight. And "because of overhead valves"????? Every GM truck v8 is an overhead valve engine. All that means is that the valve is in the head, not the block. And that has nothing to do with oil viscosity. And last, thicker weight oil does not lubricate better on start up, thinner oil does. In fact many new smaller engines are running 0/20 wight oil, its like water. Why you ask? Lower friction, less wear on start up, less drag on the internal parts means better fuel economy....common sense.
Subject: RE: Chevy Vortec V-8 Gas Engine 6.0
From: Justin
Date: 04-Sep-04
What is wrong with you people? Are your desk jobs causing brain damage? Read your manuals ...6.0 liter trucks use 5w-30. Not 10w! Why? Because of overhead valves. The thicker weight oil lubricates better at start-up to keep that knock down. READ FIRST!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: James
Date: 01-Sep-04
My like a knock Chevy is making the same noise and I have the maint done at the dealer every 3 or 4 K's also, I went in to address the knock and they said that is a characteristic of the vortex motor and I said bull crap the throttle was also sticking and the wind shield sounded as to if it would going to fall out at any min. Keep in mind I only have 31K on a 2001 1500hd 4x4 and they said for the throttle I needed to have the throttle body cleaned that GM recommends it every 30k BULL CRAP is what I told them they said it would also cause the knock to go a way there again bull. So I had it done and the throttle stopped sticking but the knock is still there. I have got w/ a lawyer and he wants to eat this one up. Good luck James
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 31-Aug-04
Hi Never,
How about Moly Slip additive for the oil?
It has been around a long time.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: nevergrownup@hotmail.com
Date: 31-Aug-04
I have a 98 conversion van with a 5 liter vortec engine.
64,000 miles. Oil changed every 3- 4K miles with synthetic.
When it gets cold out, I get lifter noise. The colder it is, the louder it is. It will go away once warmed up.
Winter is coming here in Michigan, so I would like to prevent this from happening again this season!
( Yes, I tried CD-2 additive )
Any ideas???
Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: steve
Date: 30-Aug-04
I need help! I have a 2002 chevy 4x4 1500 6000,givin me a fit. Always ran great then out the blue stated cutting out, thought it was a fuel problem changed out filter and added fuel supplement and seemed to get worse, the check engine light cam on blinked awhile then stopped. It has 70000 miles on it and i service it regular had the dio at the auto store done says it has muiltiple cylinder misfires can anyone help
email sandrbray@hotmail.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: royd
Date: 30-Aug-04
Hey BillyD If your silverado is a vortec v-8 (mine is a 5.7), Check the right(driver's side) top of valve cover for the pcv valve. It should just be a matter of pulling it out of the valve cover and remove it from the hose to replace. When disconnected you should be able to shake it a little and you will hear a "rattling sound". If not you may have to replace it. Have a reliable mechanic check it out. Best of luck!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rdawson1@ns.sympatico.ca
Date: 30-Aug-04
Hey vibration: Have your idler arm and pitman arm checked. May need to be replaced soon. Check by jacking vehicle so that wheel is off the ground and shaking wheel from side to side and watch for "play" around these connections. Might also be tie rod and or tie rod ends. If there is too much play, the vehicle may be too dangerous to drive. Any reliable mechanic should be able to diagnose the problem right away. Best of Luck!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: lnc125@yahoo.com
Date: 29-Aug-04
Engine oil leak from the back of the intake. Can not locate
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron (ethanol may damage aluminum manifolds)
Date: 28-Aug-04
Here is a link worth reading...
http://www.f150online.com/forums/archive/topic/59723-1.html
Subject: RE: Chevy Vortec V-8 Gas Engine
From: BillyD
Date: 27-Aug-04
Can anyone tell me where on he engine is the PVC Valve for a silverado with this vortec engine? And can is it much of a problem to change?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: more gas mileage u need?>??
Date: 26-Aug-04
I have a 96 tahoe with a 350 3:73 gears, I added a Tornado, and a k&n air filter went from 12.5 to 15.5mpg in city, have not done a long road trip yet. 154,000 miles and still kickin
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rarestjewel
Date: 26-Aug-04
Just bought a 2002 GMC 2500HD 4X4 used with 70,000 miles on it.Only had it 3 weeks it starts making a "ticking" noise. Take it to dealer told its a "normal" sound...gets worse every day take it back about a week later dealer says its the lifters, replaces all 16 lifters for $1,982. Guess what noise is still there!!!Refuse to pay and dealer says he has never heard this noise before and wants to do more work.Says he will not charge us for the the lifter work. Says it is not "Piston Slap" any ideas what it could be?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Evilgrizzman
Date: 25-Aug-04
I to have similar problems with my Chevy.Leaking coolant,wipers are on the fritz,whining fuel pump and a slight ticking noise when started cold, but fades within about thirty seconds.I still think that Chevy is better than all the rest(ford,dodge.) as they to have many unsatisfied customers.All of the above problems are not that big of a deal if detected early and fixed right away!I would just like to see GM issue a statement of what to look out for and stand behind any repairs that are needed.I don't see that happening anytime soon ,so it is up to the owner to be well informed before shelling out all that cash for a new vehicle.P.S. I have a friend who has his Ford 150 in the shop on a more than regular basis!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: gutendirt
Date: 21-Aug-04
Hey all, I own a 99'GMC and travel 100 miles one way to work. For that knocking noise I use a product called Gunk Motor Flush every other oil change(6,000miles).I curently at 200,000 miles. I haven't heard it since. still running great,thanks...Rick
Subject: RE: Chevy Vortec V-8 Gas Engine
From: dallas yukon
Date: 15-Aug-04
Hey Vibration;
You did not give the year of your vehicle but you may need a new EVO sensor for the steering.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ray
Date: 13-Aug-04
1996 5.7 vortec fuel pump stick with dealer not jobber parts I also went through 2 jobber pumps in 3 mos dealer part has lasted so far 1 1/2 years
Subject: RE: Chevy Vortec V-8 Gas Engine
From: DU
Date: 13-Aug-04
Hey, can anyone assist with advise on how to get more mpg's out the 6.0 liter vortec ? I get 12 mpg but that's with a real light foot. I know there are after market air filter and exhaust systems, but what really work ? Please advise.
Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: khotxay@sbcglobal.net
Date: 13-Aug-04
I HAVE A 1996 CHEVY TAHOE 5.7L 350 AND THE CHECK ENGINE LIGHT STAY ON . I WENT AND GOT IT READ AND THEY TOLD ME, #5 CYCLINDER MISSED FIRE. I HAVE CHANGE THE INJECTOR, PLUG , WIRE, AND FUEL FILTER STILL THE PROBLEM CONTINUES.IF ANY NO THE FIX PLAEASE EMAIL AT KHOTXAY@SBCGLOBAL.NET THANKS
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 09-Aug-04
Hi Vibration,
Usually the problem you are describing is caused by a wheel that has bumped a curb or other obstruction.
A wheel weight may have been knocked off causing the vibration and the veering may be due to a loose steering linkage which allows the wheel to go where it chooses. If this is left uncorrected too long, severe tire wear can result.
If this happens at highway speeds and not in city driving, then a warped front rotor could be at fault.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: vibration
Date: 09-Aug-04
ANYONE EXPERIENCED ON THEIR CHEVY A VIBRATION ON THEIR STEERING WHEEL AND CAR VIERS TO THE RIGHT WHILE YOUR STEERING WHEEL IS TURNED A LITTLE TO THE LEFT. WHAT COULD BE THE PROBLEM?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: H2 DAVE
Date: 30-Jul-04
i HAVE A HYDROGEN GENERATOR OPERATING ONBOARD. O2 SENSORS GIVING INFO TO THE COMPUTOR WHICH IN TURN IS CAUSING COMPUTOR TO RICHEN THE FUEL MIXTURE THEREBY LOSING SOME OF THE BENEFIT OF H2. WHERE CAN I GET THE PROGRAMS TO REMAP OR PLAY WITH THE COMPUTOR?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: TO ammedhassan
Date: 21-Jul-04
Hey ammedhassan I think your fuel pump is going out or is out. The fuel pump seems to be a common problem in chevy's. Mine went out on a road trip and my car wouldn't start. If no "humming" noise near the gas tank of the car then its your fuel pump (Cost about 400-500 if done by the dealer) Fyi- if it is your fuel pump one way to keep life into your fuel pump is to never let your gas tank run close to empty. Always keep it at least 1/4 full.
Later dude.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 20-Jul-04
Hi Ammed,
Maybe the fuel pump or the fuse.
Good luck
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 20-Jul-04
my 1996 chev pick up burned up today the engine expoloaded and it burned up luckey me the ins co is giviving me 11000 for that pice of shit
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 20-Jul-04
do any body know a good web site for off road pic
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ammedhassan@hotmail.com
Date: 20-Jul-04
I seem to need a sending unit or just to make it faster a new gas tank you see i came up off the free way and i was bone dry I got a cupple of galions and turn the key and no turn over . i gao some carb cleener and she will turn right over so i think its the gas tank . 95 s10 V6 2door 4.3 vortech do you think i am right???
Subject: RE: Chevy Vortec V-8 Gas Engine
From: NEVER TAKE YOUR VEHICLE TO JUST BRAKES
Date: 20-Jul-04
BEWARE!!! NEVER EVER TAKE YOUR CAR TO JUST BRAKES!!! THEY ARE CROOKS!!! IF YOUR A JUST BRAKES OWNER AND YOU READ THIS F YOU AND YOUR COMPANY!!! I WILL BE ONE OF A MILLION PEOPLE TRYING TO GET YOU OUT OF BUSINESS FOR YOUR BAD PRACTICES!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Joe
Date: 19-Jul-04
Add another to the list of leaky coolant from the intake manifold. I was in traffic when my "Check gauges" indicator turned on, and within a minute, I felt like I was driving through fog. I couldnt see much, as it happened around 1:30 am. Anyway, I managed to get off the road into a parking lot. There was so much steam and smoke. I hope the engine's internals are ok.
This happened on my 1999 GMC Yukon Denali 5.7 Vortec. I have roughly 140,000 miles and I hope to get some more years of service. I had to replace the fuel pump and injectors back when I had warranty.
-BTW as for getting a smoother idle and better mileage, a MSD 6A ignition amp, MSD 8.5mm ignition wires, and K&N air intake kit did wonders. The engine purrs, idles very smoothly, and there is no noticeable signs of knock even with 87 octane (minus long hill climbs on hot days). Also got about 50 more miles per tank since the ignition upgrade. (MSD has a pre-made adapter so the MSD 6A is almost a plug and play ordeal)
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron to 115KinSE
Date: 17-Jul-04
Hi 115K,
If you suspect a defective plug wire or arking at the ignition coil, try using a spray bottle with water in it to wet the ignition system at night...
You will see the arking and save a lot of time and guesswork not looking at the wrong places.
Good hunting.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 1997 yukon
Date: 15-Jul-04
hey guys, I have a 1997 yukon 4wd 124k miles on it and my service engine light came on after installing the k n fipk kit. when I got it checked for codes they told me that my bank 1 and bank 2 sensors were bad and causing it to run rich. but these were the same codes that I had before replacing all 8 fuel injectors and thought the problem went away a month earlier when it cleared the light. could my MAF (mass air flow) sensor be bad or should I start replacing my o2 sensors, if so which sensor is bank 1 and which one is bank 2? thx for your help
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 115KinSE
Date: 14-Jul-04
Follow Up To Oxygen sensor, etc: I replaced all four O2 sensors in my 1998 Vortec 454 Silverado and it seemed to run a little better, maybe wishful thinking, but its really the same, ie. knocks on start, runs rough at idle and acceleration, seems to have less power. EGR looked clean, not ready to dump $180 into a new EGR yet. Added injector cleaner to gas and now it runs like a plug may be fouled out. Hot, dry days seems to run much better, maybe ignition coil or rotor cap is getting dampened by humidity or rain?? Noticed rotor cap design is poor and seemed to not provide good watertight fit. Distributor cap area is where coolant has leaked since 10K miles, along with internally to combustion chamber. (Only good news is that radiator stop leak apparently completely sealed internal and external leaks, haven't added coolant in 10 weeks.) Side note, The Gasket Petition website above at www.petiononline seemed questionable due to its un-professional wording, are in others out there?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Michael
Date: 11-Jul-04
Hey! that last address should be without my name at the end. Sorry. http://www.petitiononline.com/GMcnsmrs/petition.html
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Michael
Date: 11-Jul-04
Hey Everyone! If you are interested in reviewing and signing a petition on the manifold gasket problem, go to this site. http://www.petitiononline.com/GMcnsmrs/petition.html Michael
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 11-Jul-04
Hi BOOTCAMP,
If there are no leaks, why are you concerned?
If you plan on removing the valve cover, you will find out then. If there is a light leak, why not try tightening the cover very gently with a nutdriver to prevent any chance of bending it?
If there is an excess pressure in the engine, it can be two things... a bad cylinder loosing pressure into the crankcase, or a plugged PCV valve. If excess pressure is present you will also be loosing oil internally and will often see a cloud of it when you pull away.
Maybe a little more information would help. Did you get the Dexcool out of the system yet?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 11-Jul-04
Hi Mike,
You seem detrermined to do-it-yourself, so maybe you should determine if it is gas or speark related before you go much further.
When it is cold take a spark plug wire off and crank the engine to see if there is spark.
If the fuel pump is working it should not loose pressure when it is cold. You could either buy a fuel pressure guage or take it to a shop and leave it overnight to see if it happens when they try to start it.
If it will not start when cold, HOW do you start it? Getting it scanned for engine codes might also be a good idea.
An intermittent problem is more likely to be electrical. Good hunting.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: BOOTCAMP
Date: 11-Jul-04
Was wondering what is under the valve cover for a gasket.Is it a gasket or rtv.99 5.7
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Mike in Indiana
Date: 11-Jul-04
I have a 1996 Chevy Tahoe that will not start when cold. Engine turns over and I have recently replaced the fuel pump and can hear it working so I am wondering if I should replace the pressure regulator and if so, where is the thing? I have purchased a GP Sorensen part# 800-315 in case I have to need it. Thanks for your time Mike
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 10-Jul-04
Hi Daniel,
Have you tried measuring all the injector resistances to make sure that they are correct and equal? Then connect an LED or a bulb of the proper voltage to the injector wiring to make sure that there is blinking going on when you turn it over.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 10-Jul-04
Hi Michael,
You have done all the right things.
The "goldenseal" sounds
a lot like what I have been posting about. If they are using what looks like tiny flakes of copper or brass in a clear liquid, it may be the same as a product called "Quickseal" which is available at Canadian Tire in Canada... It works and stops coolant leaks before they are even noticed. It doesn't stop the electrolysis, but it does fill in the leaks. Only fresh coolant and getting the "RED" out will prevent electrolysis. If it stays green, you are doing good. I wonder if the real reason why dexcool was put it was to hide the rust.
Keep on truckin' Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 10-Jul-04
Hi HOBBSEY,
Depending on the last transmission service, it might be a good idea to do a complete oil change and filter in the transmission.
If the oil is not pink anymore or if it has a burned smell (check it yourself) It would be wise to replace it and pay close attention to what is found when the shop takes off the pan.
If there are a lot of metal particles in the pan, it may be a sign of more trouble. A trusted shop with nobody on piecework would be a wise choice.
Shifting down a gear on a hill is common, especially with a vehicle that is not very streamlined. Freightliner trucks have to shift down a couple of gears if their speed is not not maintained in high gear.
The clunk could be a loose motor mount, so don't jump into transmission thoughts until you prove this out.
Good hunting.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 10-Jul-04
Hi ALAN,
How about an after-market turbo addition?
Of course, your rear end might be wrong for dragging, but good for fuel economy, so check into this. Since the carbed engine may not be the original, has it been scoped to check the timing and vacuum advance for proper set up? I thought they were all fuel injected in that year. A two speed rear axle could give you the best of both worlds, but it is expensive.
Good luck Ron
Subject: Change the transmission filter
From: Hobbsy
Date: 08-Jul-04
Hi people. I have a 1990 chevy suburban. When going up hills and she gears down she slips down a gear with a bit of a nock. I hoping that its the transmission filter that needs to be changed. Has anyone done this?? Is it hard?? Should i try it my self or bring it to some one. I have changed it and a dodge before but the suburban is new to me.
Thx
Subject: RE: 1996 chevy suburban with a carbed 350
From: Alan
Date: 07-Jul-04
what can i do to make this bad as show car faster. It looks really ganster but I just got it from my dad and I dont know what to do. Should i change the carb to a 4 or 6 barrel or headers and what? Please help me. I hate to see a pimp'd out slammed show burban that has a stock 350 that can barley make it up hills. Thanks for the help, Alan please email me back at multicoins@sbcglobal.net
Subject: RE: Chevy Vortec V-8 Gas Engine
From: awdtsis@hotmail.com
Date: 07-Jul-04
I just changed the oil in my 99 silverado 6.0 and the oil pressure took a while to build up everytime I cranked it yesterday. today I went and cranked it and it had no oil pressure at all and the light come on so I turned it off took of the fram oil filter and put on an acdelco still no pressure if anyone has heard of this or can tell me what is wrong please email me awdtsis@hotmail.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Michael
Date: 07-Jul-04
After reading all this, and just purchasing a '98 K1500, I feel sick! Just replaced fuel pump today. It's easier, by the way to unbolt the bed and shift it back to get access to the tank, than it is to drop the tank. I flushed the Dex-Cool out and put in the good old reliable green coolant with an additive from Bars Leaks, called Goldenseal. This is the same stuff that GM sells in pellet form. It is harmless to the cooling system and will stop mild leaks, but the main purpose is to eliminate the electrolosis that occurs between the aluminum and cast iron parts. I've got a headache. It would be nice if we could get organized,and awake the sleeping giant (GM) to treat their loyal customers with a little more respect. Good luck to us all!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: daniel
Date: 06-Jul-04
HI,I have a 97 chevy stepside and i am not getting fuel to the injectors.i put a new fuel pump,fuel regulater,relay,cam position sensor,module on the distributer and fuel filter.i even took my computer and put it on another truck and it ran.i cam put fuel straight in it and it will crank right up.does anyone have any ideas of what to do.
Subject: RE: Chevy Vortec V-8 Gas Engine (TO BRAKES)recall
From: Ron
Date: 06-Jul-04
Hi Brakes,
It is a common problem for brake rotors on the front to develop cracks in some of the webs between the plates... When this happens there is uneven expansion due to heating. This can cause the brake pedal to feel like it is being hit with a hammer under hard braking. Because it is mainly on one side it may also cause pulling to one side or shaking of the wheel as the braking varies with each wheel revolution. New rotors are the only remedy.
If you have the mechanical antiloc brakes you may also notice a very long stopping distance when there is a light load on the back wheels. This is because of a valve in the brake line to the rear that reduces the braking power to prevent locking-up the rear wheels. (This was a feature in 89 vans ... I don't know when it was discontinued.) Braking ability varies due to how far down the back springs are compressed... Look for this valve and have lever bent a little to increase braking at the rear if you are always empty.
Here is something that you might find interesting... regading brakes... http://www.alldata.com/TSB/11/9611AMFZ.html
Good luck... Ron
Subject: RE: Chevy Vortec V-8 Gas Engine (TO BRAKES)
From: Ron
Date: 06-Jul-04
Hi Brakes,
It is a common problem for brake rotors on the front to develop cracks in some of the webs between the plates... When this happens there is uneven expansion due to heating. This can cause the brake pedal to feel like it is being hit with a hammer under hard braking. Because it is mainly on one side it may also cause pulling to one side or shaking of the wheel as the braking varies with each wheel revolution. New rotors are the only remedy.
If you have the mechanical antiloc brakes you may also notice a very long stopping distance when there is a light load on the back wheels. This is because of a valve in the brake line to the rear that reduces the braking power to prevent locking-up the rear wheels. (This was a feature in 89 vans ... I don't know when it was discontinued.) Braking ability varies due to how far down the back springs are compressed... Look for this valve and have lever bent a little to increase braking at the rear if you are always empty.
Good luck... Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: BRAKES
Date: 06-Jul-04
gotta 96 tahoe LT 4X4. has anyone had any vibrations felt through the steering wheel while braking at certain times. Not sure if its brake related or not. Feed back on this topic would be greatly appreciated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dale
Date: 04-Jul-04
Reponse to 115KinSE. You just hit it on the head. After replacing my head and intake gaskets, I am having severe missing on the freeway. Just replaced one 02 sensor and seemed better for a couple days, (maybe wishfull thinking) I had heard that antifreeze can damage 02 sensors. I'll bet that is my problem as I am still getting misfire codes. Had to have the exhaust cut out last time and a new 02 fitting welded in. What a pain, I tried for 4 hours to get it out. I will post results.
Subject: RE: to all GM truck owners
From: Dale, a million dollar 96 GMC Suburban w/350 owner
Date: 04-Jul-04
Here's some of my list and what I've done to fix them: - Replaced Fuel Pump twice. - Engine knock at start up (spun bearing, dealer fixed while under warrantee. - Rear main leak, dealer fixed under warrantee. - Replaced transmission. Out of my pocket, warrantee gone - Complete overhaul on air conditioning system twice. Out of my pocket, no warrantee. - Replaced water pump once, alternator a lot of times (Once by dealer under warrantee, then Pep Boys lifetime warratee crap). - Replaced every inside door handle, in fact I am going down today to replace one a second time. - Replaced the 2 front outside door handles. - Both screw tabs broke on piece of junk distributor the first time I went to change the cap and rotor. Had to jury rig it with some long screws with large washers. - Replaced the coolant quick disconnect fitting twice. - DEXCOOL Coolant in oil. Unfortunately, I drove the truck for probably 3000 miles or so before I found out the problem. Kept going through coolant, but at the same time, I was going through radiators (4 in all). I thought it was a bad radiator. Wound up being a bad intake gasket. Replaced head gaskets at same time, they were not leaking. Took a week of of work and did in my driveway. what a pain in the _ _ _. Engine doesn't knock or burn any oil since then. - Since replacing head and intake gaskets, I have developed a bad miss between 55 - 75 when the truck is cruising. Quits when you accellerate or let off the gas. It has misfire codes, and one that said bad 02 sensor. Replaced pass rear 02, full tune-up, fuel filter, ran a couple bottles of Red Line. Still missing........ Would appreciate any help on this one.
- This isn't the entire list, my reciept folder is 2" thick. Worst thing is...I leased the truck in 96, bought the truck at the end of the lease, and still owe more than it's worth today! @%$^&*(*%@$#$
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ken
Date: 25-Jun-04
This is a reply to Scott's question about a leaking intake. I own a '96 with a 5.7 and had the same problem. The Dexcool antifreeze is eating away at your gasgets and is also eroding the aluminum parts of your engine. Change your gasgets and switch over to a glycol based antifreeze and your problem will go away. You will have to flush your cooling system when you do this. 60,000 miles since i did mine and no leaks.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 24-Jun-04
Hi DAVE O,
A small pair of long nose visegrips is very helpful.
They do grip nad don't slip. NEVER PULL ON THE WIRE... Pull on the boot as close to the motor as possible,
The ideal tool would have little bent angles on the end of the jaws to pull the boot without pinching it against the porcelain. (If you can picture the way a bearing puller operates) Practice on one in an area where it is easy to pull on the boot without risking smashing your hand into something sharp when it lets go.
Most plugs will last 100K or more, so ask yourself if there is any misfiring that must be fixed. A scope check will prove if you even need to do this work.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Deez Nuts
Date: 23-Jun-04
350 Vortec
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Dave O
Date: 22-Jun-04
I have a 2000 Chevy Silverado 4.8 liter V-8. Does anyone know how to easily remove the insulation boot off of the spark plugs for easy changing?
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 20-Jun-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jackdanielsmc@aol.com
Date: 19-Jun-04
i have 97 chevy step side with a 350 vortec.i am not getting fuel to the injectors.it is getting fuel to where it goes into the intake and thats it. i put a new fuel pump,fuel relay,fuel filter,fuel regulater,crank position sensor and a new module on the distributer.i even took my computer off and put it on another truck and it ran fine.can anyone help me i would be very thankful.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: thePOTZ
Date: 15-Jun-04
MY FRIEND FIXED HIS KNOCK PROBLEM! My friend had the same problem with the knock on his 95 chevy truck, although I don't think it was a vortec. It was under warranty, but they kept giving him the run-around. He's got a Loud mouth and a Short fuse, and still no resolution. After 3 mo. of fighting with the dealership, embarrassing them to fix the problem under warranty, he decided to take matters into his own hands. Early one winters morning, when the knocking was all he could take, he parked outside the dealership service entrance, and propped up a windshild scraper (the kind with a broom on one side) between the seat and the gas pedal, started it, floored it, locked it, and walked away. When he came back after breakfast, it had obviously blown up, and he walked into the dealer, and said, "Now, my truck has an engine problem." "Fix it." ...and they did, (New Engine) with no questions asked. I bought a 95 KIA Sportage, with an extended warranty, and when it had some transmission problems, I took it in 6 times, and they didn't fix the problem, so this time, I called up the service manager to tell him that once again the problem is not fixed, and that once again, you did not even drive it to see if it was fixed, and that he could expect me back in tomarrow. -Well, he got real snotty with me, and told me that the problem was my driving, and that they had done all they could do. So I had the local sign shop make some giant lemon stickers, and I put them all over the car, and then I sat in it on the front entry way to the dealers car lot on a Saturday around 10:30. Needless to say, they replaced everything from the engine to the wheels, and this fixed the problem. Stickers are cheaper than Lawyers!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Mike
Date: 14-Jun-04
I have a '97 Tahoe that I seem to be having electrical problems with. I have been getting a "check engine" light but when it is checked on the computer, it doesn't show anything. The other thing I have noticed with it is that when the light comes on, the steering gets really loose and it really bangs when it shifts from first to second. Any ideas?
Subject: RE: Chevy Vortec V-8 Gas Engine (TO GARYD)
From:
Date: 12-Jun-04
Hi GaryD,
Here is a link which expalains a bit about injector problems, cleaners, bad fuel etc... http://www.corvettefever.com/techarticles/153_0303_fuel/index2.html
I hope something rings a bell..
Good luck.. Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Randy
Date: 03-Jun-04
I have a 96 Vortec 5.0 with a 150,000 miles on it. The intake manifold gasket started to leak water along with the water pump. A shop wanted $1500.00 to repair it. I decided to take it on myself and what a mistake it can be if you don't have patience. It took 3 days and a few beers to finish, but I wouldn't do it again. Other than that it has been a great engine. The inside still looks new without any build up after 150,000 miles is impressive, to me anyway.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: chris073
Date: 28-May-04
Hey all you chevy owners, I too have the knocking noise with my 2001 Silverado, 4.8 engine. It now has 75000 miles on it and no mechanical issues. I know that we all paid good money for engines that have knocking noises when cold,but let's all just learn our lesson, and not be repeat buyers until GM has solved the problem
Subject: RE: Chevy Vortec V-8 Gas Engine
From: garyd1286@aol.com
Date: 28-May-04
I have a 97 3500 with a 5.7,the other day it started cutting out the went dead. It gets fire and will run if you putfuel in the throttle body. Have replaced fuel pump and fuel regulater.Could the injectors burned out when they were not getting fuel? please help im stumped.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: noisy mornings
Date: 28-May-04
I have a 2002 silverado V-8 Vortec and noticed that when cold mornings are noisy but when warm in evening its not noisy at all. Love my truck but from reading these post I guarantee Chevrolet will do nothing, so I will just drive it, thanks for the advice.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rdawson1@ns.sympatico.ca
Date: 25-May-04
I recently noticed an antifreeze smell coming from engine (5.7 Litre vortec). 100,000 miles. I replaced the intake manifold gaskets costing $600.00 canadian after parts and labour. Still noticing the smell but no visible wetness or leaks. Is there anything else I should be looking for? Any other well known causes for suck a problem? Please help!
Subject: RE: Chevy Vortec V-8 Gas Engine (to Randy41)
From: Ron....
Date: 20-May-04
Hi Randy,
Has the "throttle position sensor" been checked? It could also be the oxygen sensor causing it to run too rich on idle. Yours can't be the only one with this problem.
How is the coolant level? If you are adding every few weeks, you might want to check the rad for sludge. A leaking intake manifold gasket is common after 50K miles, but sooner is also possible.
If you are wanting GM to look after the repair, make sure that your coolant loss is DOCUMENTED and attempts are made to repair it long before the warranty is up. If you never say a word until after five years, they will not do anything for free. Engines are expensive, so don't let coolant get into the oil.
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rlcrisner2@aol.com how to find if a re-call
Date: 19-May-04
1999 bonnievill cracked intake manifold, is there anyway of getting gmac to pay, or has there been a recall on this problem. where do i go from here.
thanks roger
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rlcrisner2@aol.com
Date: 19-May-04
1999 bonnievill cracked intake manifold, is there anyway of getting gmac to pay, or has there been a recall on this problem. where do i go from here.
thanks roger
Subject: RE: Chevy Vortec V-8 Gas Engine
From: randy41@juno.com
Date: 16-May-04
I have a 2001 Tahoe 2wd with the 4.8 vortec V8 with a little over 100,000 miles. The idle has gradually slowed to the point that now sometimes when pulling up to a stop it will die. It seems to die most often when slowing and turning the steering wheel at the same time. I had a shop tell me they could not find anything wrong with it. I have used fuel injector cleaner, I have changed plugs, changed fuel filter, and air filter. Since there is no idle adjustment I am looking for someone that has fixed a similar problem. I have owned this vehicle since new and always used mobil 1 oil. It has had what I thought was a valve lifter making noise since new, the dealer said it was not a problem. Any thoughts?
Subject: RE: ford 6.0 power stroke deisel Engine
From:
Date: 15-May-04
Subject: RE: ford 6.0 power stroke deisel Engine
From:
Date: 15-May-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 14-May-04
Hi 115KinSE,
I hope that you are no longer using Dexcool. It seems that almost everyone has better luck without that product. Other coolants with corrosion preventers in it will serve you better. The bottle should say "Aluminum compatible"
That rad sealant will also clog up the cooling passages in the rad, so try to use a different product called Quick Seal with tiny flakes of copper in a clear fluid. It will seal intake and head gaskets, cracked blocks etc much more effectively without cloging the rad.
Take care... Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 115KinSE
Date: 13-May-04
Love my 1998 Silverado's transmission, hate the 7.4L engine rough/knock. Best fix for me so far was the radiator stop leak in gray bottle with yellow and black lettering, used two bottles and only drained enough coolant for stop-leak to go in. Have replaced plugs, wires, rotor, rotor cap, air filter. (Fuel filter change fixed the fuel pump whine noise.) O2 sensors measure good and computer has right voltages at O2 connector. Still runs rough. Why is there no history in this discussion about Oxygen sensor replacement? According to Bosch, Antifreeze will damage O2 sensors, and with all of our gaskets leaking antifreeze internally to the engine, maybe we need to replace O2 sensors even if they test OK and reportedly don't fail that often.?. Oxygen sensor comments welcome. Thanks all, I am not alone!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: WHERE THE CAMARO'S?
Date: 13-May-04
I HEARD THE CAMARO'S ARE GOING TO MAKE A COME BACK. I'VE SEEN CONCEPTS AND THEY ARE GOING TO LOOK LIKE THE 67-69 CAMARO'S KINDA LIKE THE NEW MUSTANGS GOING BACK TO THE SHELBY LOOK ALIKES. ANYWAYS...TOTALLY OUT OF THE SUBJECT BUT WITHIN THE CHEVY/GM LINES.
PEACE MY CHEVY BROTHA'S
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mark.wansing@us.army.mil
Date: 12-May-04
I am thinking about putting a set of vortec heads on a 1998 marine engine. It is a 355 SBC with a jet pump. The top rpm is about 4200 RPM. Could you give me some suggestions on the best cam/carb combos? I have also heard you are not suspossed to run flattop pistons with vortec heads, is this true? What is the best plug to run in the heads?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Booradley
Date: 05-May-04
i also went to a chevy dealership and asked about that engine noise in the mornings (mostly) in the newwer vortec motors. I was told "it is just a characteristic of the motor" maybe it is
Subject: RE: Chevy Vortec V-8 Gas Engine
From: lulu
Date: 04-May-04
I have a 98 Silverado K1500 Z-71. I also have that coolant leak everyone is talking about. The main issue wiht my truck however is the pinion bearing, ring, and gears. I have 107k on my tuck and shes on her 3rd rear end now. I have a claim # with chevy but they didnt help. I also have that annoying clunk in the rear too. I bought the truck used with 62k on it . Had issues since day one. The first owner also complained about the differential problem but the dealer said they couldnt find anything wrong. Im checking into lemon laws in the state, this is crazy. I cant afford all these problems. I baby my truck. The fuel pump cost me $1100 to replace. Im looking at $600 for the coolant leak and each rear end I replace is costing me a ton of money too.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 04-May-04
Hi Boo,
That sounds fair. It is certainly better than most have gotten from GM. You must have been complaining about coolant leaks for quite a while and started doing so while your warranty was still in effect. That seems to be the only way that GM will own up to responsibility for a leaky intake gasket. How long have you been a GM employee... :)
Hopefully, you will receive the new and improved replacement gasket and not another old syle one. If they insist on putting "Deathcool" in your rad again, they haven't learned a thing from years of complaints.
Good luck... Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Booradley
Date: 04-May-04
i have a 1998 Z-71 with the 5.7 vortec and it just hit 110,000 miles and the cam main bearings have gone out. man that sucks. now i think i am going to get a new engine from gm its going to be about 3 grand (including taking out the old one and putting in the new one) sound good?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Booradley
Date: 04-May-04
my friend "had" a 2002 trailblazer and by 6,000 miles the weatherstripping had to be replaced as well as the power steering pump then the engine threw a rod! It was that new 4.2 I-6 though must have been a piece. any similar problems
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Marcus L.
Date: 04-May-04
My 1998 Chevy Silverado with 5.7, is starting to get worse gas milage. Has gone from 18 to 15. Has a horrible vibration when it is setting and idleing. Vibrates the whole truck, kind of jerks. Anybody have any ideas about what it could be. EMAIL livelymike@kvnet.org. I need some ideas on what to do.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: DB
Date: 03-May-04
Just bought a 2001 with the 6.0. Has good power but knocks and pings at idle to 1400. Dealer won't touch it they say it's normal and won't harm the engine. Maybe it won't but I can't stand my truck sounding like a diesel.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 02-May-04
gm is re calling all engines build from 1996 to date call gm for id no and dont let them tell you any thing diffrant
Subject: RE: Chevy Vortec V-8 Gas Engine
From: royal screwing
Date: 01-May-04
whats up with gm my 5.0 has leaking intake gasket and it sucked the dexcool in the engine and now the engine junk they want 3400 for a new engine and 1400 to put it in whats up with these engines i paid 27000 for this truck now they put there hand in my pocket and get more money i wish ill got a ford in sted thanks gm next time i hope i get a kiss befor i get a royal screwing
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Tom
Date: 30-Apr-04
I'm fighting them right now.
please email me at tsaotsaotherebel@yahoo.com on tips in beating this. Anyone here victorious in lemonizing it or getting a brand new motor?
Tom
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jmr3891@aol.com
Date: 28-Apr-04
My son has a 1998 z71 with 40,000 miles with missfire in #4 cylinder. chevy says it needs a valve job to fix the problem. The say its not the popits. Most people are telling me it is the popits anyone have the same problem? chevy will not change them under the campain they have for this problem. I have been told they will do a valve job and while they have the engine apart the popits will be replaced and the problem is gone. Good reason to get you to pay for a problem they dont want to fix. I sold my 1996 z71 with the same problem. if we can fix my sons truck to pass smog (CALIF) it will be sold. Next will be my 2003 Tahoe. After 30 years I think I will be done with chevy VERY POOR CUSTOMER SERVICE.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: txbirdblaster@yahoo.com
Date: 27-Apr-04
Lucky Me. I have a 99 Tahoe with the 5.7 and just like everyone else, it's leaking coolant from right side intake manifold. It's a pinhole and I would not have caught it but the water pump went and the leak showed up under a vacum test. Just read on the internet that DEX-cool has a nickname...death-cool.
Related story. I have a 1995 Z71, during it's life, it went through two intake manifold gaskets (the first at 70k). The second one was caught to late, sucked in coolant, damage was done, burnt the bearings. The new six inch lift just added was now worth more than the truck, so opted for a new 5.7 crate motor. What did it come with?....you guessed it, piston slap. So the problem is not related to just the vortecs.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: txbirdblaster@yahoo.com
Date: 27-Apr-04
Lucky Me. I have a 99 Tahoe with the 5.7 and just like everyone else, it's leaking coolant from right side intake manifold. It's a pinhole and I would not have caught it but the water pump went and the leak showed up under a vacum test. Just read on the internet that DEX-cool has a nickname...death-cool.
Related story. I have a 1995 Z71, during it's life, it went through two intake manifold gaskets (the first at 70k). The second one was caught to late, sucked in coolant, damage was done, burnt the bearings. The new six inch lift just added was now worth more than the truck, so opted for a new 5.7 crate motor. What did it come with?....you guessed it, piston slap. So the problem is not related to just the vortecs.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: cweiser@rcsmillwork.com
Date: 27-Apr-04
I have a 96 tahoe with the 5.7 and I believe (after reading this site) that the intake is leaking. The water is running down the backside of the Driver side and would just like to know if you think it would be a heater fitting or the intake gasket.
Thanks, Corey
Subject: RE: Background story on engine knock
From: Drew
Date: 26-Apr-04
Here is a link you those of you that experience a knock. It is an informative story written by the Detroit Free Press February 2004, for Chevy trucks 1999-2002 year models. It is in a pdf format.
http://www.pistonslap.com/media/free_press.pdf
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Power S & B
Date: 26-Apr-04
I have a 2000 3/4 ton Chevy Silverado 6 vortec 4/4. I have 50k on it. I was just backing up to hook up my horsetrailer when I lost both power steering and power brakes instantly. One mechanic tells me its the Power Booster and another one tells me its the power steering pump. I checked the pully on the power steering pump and I can actually pull it out quite a bit. Would the power steering pump control both. Is this problem common? Thanks for the help.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: brialkev@wyoming.com
Date: 25-Apr-04
Just purchased a 2001 Chev 1500 Z71 5.3 Vortec, 36,000 miles. Truck seems to be in excellent shape except for the knocking at start-up. I am doing some research to find out if an attempt has been made to file a class action lawsuit against GM. If anyone has any info, please let me know. Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: SCREW BY G. M.
Date: 24-Apr-04
I HAVE A 1997 chev pick up to and the intake gasket leaked to and run into no# 6 CLY went i start it the rod caime apart and wrecked the block and oil pan it cost $4000 to get it fixed and gm said go luck sucker
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 23-Apr-04
Hi Classic015,
4.10 gears are great for trailer towing or the 1/4 mile dragstrip, but not for fuel economy. Chances are that you could tow a 30 foot trailer and not get much worse gas milage. If you never tow a trailer, that rear-end was a very poor choice
If you have small wheels, you could try putting the largest wheels that will fit under the fenders on the truck, or look around for a 2-speed rear axle. With today's gas prices, you would recover the cost in less time than you might think. If your RPM at 60 mph is not down near 2000 you are never going to get economy.
Unless you can get the ratio to about 3.25, you will have a hard time getting economy out of a big V8 You might want to get the timing checked in case it is running late.
Happy gearing... Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Drew , Soldat642@aol.com
Date: 23-Apr-04
Classic015@aol.com RE: 04' 2500HD. You are a victim of the HD transmission your truck came with. 4:10 gears will kill any gas milage improvement attempts on your part. The gears are for quicker acceleration. Unless you change the pinion gear and install a lower gear like 3:90 to 3:73 you are stuck with bad gas milage. Or trade/sell the truck!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: dplowman57@aol.com
Date: 22-Apr-04
how do i set the dist. timing?? if you can help..i thank you
Subject: RE: Chevy Vortec V-8 Gas Engine
From: classic015@aol.com
Date: 22-Apr-04
2004 2500HD 6.0 vortex auto trans 4:10 gears... love the truck but the gas milage suck's. Geting 10-12 both city and highway changedto K&N did nothing GM says well thats the best.... really sad when you can take a Dodge and get 19-22 all the time..... know what's im trading for next.... if anyone has any ideas help Classic015@aol.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 22-Apr-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: David 01YukonXL
Date: 22-Apr-04
Ron,
Thanks for the reply. I'll try the downshifting today. As far as I know they have not checked onboard computer. Just cleaned the TBI and that was around 34,000 miles. I had it in at 18,000 for the low RPM, again at 34,000. Now I'm at 50,000. I have not seen Check Engine light come on. I've talked to others who say you can clean it yourself. Most say that STP has a real good TBI cleaner.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 21-Apr-04
if you have piston slap in wont be long and you will be buying a engine your self like me
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ron
Date: 21-Apr-04
Hi David 01,
Have you had your transmission checked to ensure that it is downshifting into 1st gear before your wheels come to a stop?
If it is late in dropping back into 1st, you can put it there yourself by moving the gear selector into Low JUST before you stop. If this prevents the LOW RPM from happening, you have your diagnosis.
It could be your throttle position sensor that is sending false messages to the transmission. Have they looked for codes on your onboard ECM computer? Have you seen your check engine light when this happens?
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: David 01YukonXL
Date: 21-Apr-04
I also have piston slap on start up, so does my neighbor with his '01 Tahoe. My issue is, when slowing down to stop, when I reach about 5 mph, the RPM will drop to around 400, w/wo air cond. on. That in turn makes the voltage gauge drop, which makes the lights dim if on. This lasts for about 5 seconds. I have had the dealer check this out, last time they charged me $180 for TBI cleaner. A co-worker has had it done 3 times, last time with EGR valve replaced, cost about $400. This problem started at about 18,000 miles, before I installed K&N FIPK. I now have 50,000 miles. My MPG in daily driving in Atlanta traffic is approx. 17.2. If I can get on open road, keep it around 65-70, I have gotten over 19. I now have Gibson exhaust, sounds great, but mileage has suffered due to buildup in TBI. Has anyone had this problem, and was TBI cleaner the only answer?
Subject: RE: ChevyABS BRAKES SUCK
From:
Date: 19-Apr-04
I HOPE YOU DONT NEED YOUR BRAKES ON A SNOWY ROAD THEY DONT WORK WENT MY TRUCK WAS NEW I ALL MOST TOTAL IT THE FIRTH WEEK SO I TOOK IT BACK TO THE DEALER HE SAID THATS THE WAY THEY ARE SO WE UNHOOk THEM NOW I HAVE BRAKES WENT I NEED THEM LIKE I SAID ABS BRAKES SUCK
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 19-Apr-04
NOTE IF YOUR LEWSING ANTIFREEZE DONT DRIVE IT LOOK AT REAR OF ENGINE AND YOU WILL SEE IT LEAK
Subject: RE: Chevy Vortec V-8 Gas Engine
From: daniel scriven po box 92 ripley ny 14775
Date: 19-Apr-04
well it happen to me as well my 1997 chevy pick up blew up the intake gasket leaked vac into crank case and leaked antifreeze down right side of engine as well as antifreeze into oil called chevy and got the run around but hallman chevy said there been a lot of them the engine retails for $3400 the ENGINE had 50000 miles on it and they want $1100 to install it i hope this new engine will go 150000 miles like my ford has any one got chevy to pay any part of there bill********************
Subject: RE: Chevy Vortec V-8 Gas Engine
From: daniel scriven po box 92 ripley ny 14775
Date: 19-Apr-04
well it happen to me as well my 1997 chevy pick up blew up the intake gasket leaked vac into crank case and leaked antifreeze down right side of engine as well as antifreeze into oil called chevy and got the run around but hallman chevy said there been a lot of them the engine retails for $3400 the ENGINE had 50000 miles on it and they want $1100 to install it i hope this new engine will go 150000 miles like my ford has any one got chevy to pay any part of there bill********************
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 19-Apr-04
Subject: RE: Chevy Vortec V-8 Gas Engine
From: TAHOE MAN
Date: 19-Apr-04
INTAKE GASKET LEAK. FOR ALL YOU COOLANT LEAKERS ON A GM VEHICLE ITS YOUR INTAKE GASKETS!! CHEAP PART BUT HIGH LABOR COSTS. ITS TO YOUR ADVANTAGE TO DO THINGS YOURSELF
Subject: RE: Chevy Vortec V-8 Gas Engine
From: sprattfamily4@yahoo.com
Date: 18-Apr-04
i have a 1998 chevy 2500HD 4x4 reg cab pickup that is leaking coolant from what i believe to be the rear of the engine, from what i can reach i can feel wetness at the rear of the engine below the valve covers. i am pretty sure that it is not my heater core. i see you posted your message in january, i may have the same problem, if you have found a cure i'd appreciate and be gratefull for any input you could give me.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 17-Apr-04
I've developed a problem with my Buick Roadmaster 5.7 Litre engine. It started hitching as I was driving down the highway. When I pulled up to a stop sign, it stalled. When I restarted, it stalled again just at the touch of the gas pedal. At the fourth try it chugged and farted its way up to highway speed. When I stopped in front of my house, it stalled again. It would barely turn over this time and would not start. After it cooled off, it started and idled perfectly but it bogs out when I try to accelerate and makes a loud roar when I push the accelerator down. Has anyone any ideas?
-Terry
Subject: RE: Chevy Vortec V-8 Gas Engine
From: sdfg
Date: 16-Apr-04
sffg
Subject: RE: Chevy Vortec V-8 Gas Engine
From: RonB (in Toronto Canada)
Date: 16-Apr-04
Hi Jbarnes,
Make sure that your tire pressure is as high as possible without causing uneven tire wear.
Install a low restriction air filter (ie. K&N)
Let the front hubs freewheel if you can. Less drag means more economy.
Place a cold air duct to collect combustion air from the outside to minimize heat from the engine compartment.
Don't carry any unneeded weight in the vehicle. A load of firewood in the back does not improve economy.
If it is a pick-up and you are on the highway a lot, consider a box cover tarp or a nylon web cargo net.
Use the lowest octane gas possible. If the engine knocks a little, the built-in "knock sensor" will automatically retard your timing. If it still knocks, you will learn to not step on the gas so hard. That will improve economy.
If your rear-end ratio is higher than 3.5 to one your highway mileage will suffer unless you have a big overdrive gear.
At 70 miles per hour, your engine rpm should not be much over 2500. The lower the better.
Shift to a higher gear as soon as possible to keep revs low.
Avoid racing those rice burners.
In cold weather, keep warm-ups to a minimum. Oil circulates to all the hard to reach areas in a few minutes. Just drive without over-revving until you can see some movement in your temperature guage. It will warm up faster that way and you will be half way to your destination on the gas you would have wasted in your driveway.
Do not use a remote start in the winter. Clean your windows and then drive away.
Other than that, try to find a route that is downhill in both directions. :)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: RonB (in Toronto Canada)
Date: 16-Apr-04
Hi Jbarnes,
Make sure that your tire pressure is as high as possible without causing uneven tire wear.
Install a low restriction air filter (ie. K&N)
Let the front hubs freewheel if you can. Less drag means more economy.
Place a cold air duct to collect combustion air from the outside to minimize heat from the engine compartment.
Don't carry any unneeded weight in the vehicle. A load of firewood in the back does not improve economy.
If it is a pick-up and you are on the highway a lot, consider a box cover tarp or a nylon web cargo net.
Use the lowest octane gas possible. If the engine knocks a little, the built-in "knock sensor" will automatically retard your timing. If it still knocks, you will learn to not step on the gas so hard. That will improve economy.
If your rear-end ratio is higher than 3.5 to one your highway mileage will suffer unless you have a big overdrive gear.
At 70 miles per hour, your engine rpm should not be much over 2500. The lower the better.
Shift to a higher gear as soon as possible to keep revs low.
Avoid racing those rice burners.
In cold weather, keep warm-ups to a minimum. Oil circulates to all the hard to reach areas in a few minutes. Just drive without over-revving until you can see some movement in your temperature guage. It will warm up faster that way and you will be half way to your destination on the gas you would have wasted in your driveway.
Do not use a remote start in the winter. Clean your windows and then drive away.
Other than that, try to find a route that is downhill in both directions. :)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: RonB (in Toronto Canada)
Date: 16-Apr-04
Hi Jbarnes,
Make sure that your tire pressure is as high as possible without causing uneven tire wear.
Install a low restriction air filter (ie. K&N)
Let the front hubs freewheel if you can. Less drag means more economy.
Place a cold air duct to collect combustion air from the outside to minimize heat from the engine compartment.
Don't carry any unneeded weight in the vehicle. A load of firewood in the back does not improve economy.
If it is a pick-up and you are on the highway a lot, consider a box cover tarp or a nylon web cargo net.
Use the lowest octane gas possible. If the engine knocks a little, the built-in "knock sensor" will automatically retard your timing. If it still knocks, you will learn to not step on the gas so hard. That will improve economy.
If your rear-end ratio is higher than 3.5 to one your highway mileage will suffer unless you have a big overdrive gear.
At 70 miles per hour, your engine rpm should not be much over 2500. The lower the better.
Shift to a higher gear as soon as possible to keep revs low.
Avoid racing those rice burners.
In cold weather, keep warm-ups to a minimum. Oil circulates to all the hard to reach areas in a few minutes. Just drive without over-revving until you can see some movement in your temperature guage. It will warm up faster that way and you will be half way to your destination on the gas you would have wasted in your driveway.
Do not use a remote start in the winter. Clean your windows and then drive away.
Other than that, try to find a route that is downhill in both directions. :)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: RonB (in Toronto Canada)
Date: 16-Apr-04
Hi Jbarnes,
Make sure that your tire pressure is as high as possible without causing uneven tire wear.
Install a low restriction air filter (ie. K&N)
Let the front hubs freewheel if you can. Less drag means more economy.
Place a cold air duct to collect combustion air from the outside to minimize heat from the engine compartment.
Don't carry any unneeded weight in the vehicle. A load of firewood in the back does not improve economy.
If it is a pick-up and you are on the highway a lot, consider a box cover tarp or a nylon web cargo net.
Use the lowest octane gas possible. If the engine knocks a little, the built-in "knock sensor" will automatically retard your timing. If it still knocks, you will learn to not step on the gas so hard. That will improve economy.
If your rear-end ratio is higher than 3.5 to one your highway mileage will suffer unless you have a big overdrive gear.
At 70 miles per hour, your engine rpm should not be much over 2500. The lower the better.
Shift to a higher gear as soon as possible to keep revs low.
Avoid racing those rice burners.
In cold weather, keep warm-ups to a minimum. Oil circulates to all the hard to reach areas in a few minutes. Just drive without over-revving until you can see some movement in your temperature guage. It will warm up faster that way and you will be half way to your destination on the gas you would have wasted in your driveway.
Do not use a remote start in the winter. Clean your windows and then drive away.
Other than that, try to find a route that is downhill in both directions. :)
Ron
Subject: RE: Chevy Vortec V-8 Gas Engine
From: RonB
Date: 15-Apr-04
Hi all,
I just found this forum while looking at the search results for leaking intake manifold gaskets on GM.
I have posted a few people on this topic with what I believe to be a fairly permanent fix for disappearing coolant with no visible leaks. It is definitely not evaoration but the dealerships would like you to think so until the warranty is over. Then they will be only too pleased to repair the leak. 3.1 and 3.4L V6 engines seem to be the most affected between the years of 95 and the present. If you notice any coolant loss while still under warranty be sure to get the complaint on record so that they will not escape by saying you let them know too late. Get copies of the work orders for your file.
Here is the fix that I have used with great success. ---------------------------------------------
I think I can save you some money. Replacement gaskets can also leak, but the following will give you constant protection.
I saw your story on the GM-lemon forum I hope I have written early enough for you to try this idea before you take the motor apart. Too bad that site does not have a message forum where posts can be left and replies can be read. I have a 92 Olds Cutlass with a 3.1 and about 4 years ago, I noticed that a tiny coolant leak became one quart in 10 miles. I noticed it when I was not able to get any heat out of the heater and the "Add Coolant" light was coming on. Problem was that there was no outside sign of a leak, only a smell of glycol at the tailpipe.
After describing this to a shop, I was told that an intake manifold gasket or a cracked block could cause this.
I religiously topped it up before and after work before driving and proceeded to look for a cheap remedy. I went to an auto parts store (UAP) and asked what there was to solve the problem. They said..."A gasket replacement and that they sold a lot of them. Undaunted, I continued my search at a large chain called Canadian Tire... After looking at all the oil additives, performance boosters and sealants, I finally found a 8 ounce bottle called QUICK SEAL for about $6.00 It advised draining the cooling system and refilling with clean water, which I did. If your vehicle is still using the original type of coolant called "Dexcool", that would be best replaced with an after-market coolant. Most of the problems seem to have been since this coolant was introduced. Could it be that the gasket engineers did not discuss their ideas with the coolant concockters?
I saved as much of the coolant as possible to put back in. (frugal I guess) I added the bottle to the rad (after shaking) and added water, then drove the vehicle to circulate the "magic potion?" This seemed to correct the leak (since I marked the coolant level on the overflow bottle). It was quite cold so I could not just leave the water in the system and risk freezing the block. I drained and replaced the water with the original coolant and added more antifreeze to assure protection. It was mostly new since I had the BIG leak for a few days. The next week showed me that there was still a tiny leak that might be causing me to add a quart or less in a week. Not wanting to have to drain the system again, I went back to Canadian Tire and bought another bottle of "Quick Seal" This time, I opened the rad when the engine was cold and shook the bottle to mix the tiny flakes of "copper looking metal" which had settled to the bottom. I poured about 1/3 of the bottle into the "rad* NOT the overflow bottle. (No sense in letting the particles settle in the overflow bottle.) I had to repeat this one more time about a month later and it has been a solution to the leaking gasket. I leave the Quick Seal in the rad all the time, so that it will continue to circulate and flow into any new leaks before they become a problem. I keep the bottle of "Quick Seal" in the trunk along with a bit of coolant. (Just for insurance and peace of mind) So far, I have not had to use it again in the two years following the use of Quick Seal. The car has not been driven this year, but there is still not leaking. I STILL HAVE THE ORIGINAL GASKET and may never have to change it. The bottle says that this IS A PERMANENT FIX. :?) Quick Seal does NO HARM to the engine. All it does is plug tiny leaks as soon as they begin. (Some people have tried rad stop-leak, but that seems to plug up the rad. I refused to consider it.) I did change the oil just to be sure that nothing was going to affect lubrication and there was no sign of coolant or that sludge in the oil. This may not be what you wanted to hear, because it does not replace the gasket or prevent further corrosion, but it does prevent spending a fortune or trying to get GM to cough up the cash. It does save a lot of court costs and aggravation. It can also allow you to sell the car without spending very much. It also gives you the needed time to drive around and shop for a fair price at a repair shop instead of being at the mercy of the dealer. If anything, I would have thought that repair shops would be annoyed about my solution, but after speaking to a few doubting shops, one employee who had his own GM with the problem told me that it worked on his car too. I don't even advise that the coolant should be drained. Just add half a bottle of the "Quick Seal" to the RAD and drive the car. If you have a mechanic friend, ask what he thinks about this.
It is distributed by "XCel Manufacturing Group" in Windsor Ontario and also by "Winston Mfg." in Birmingham MI (The UPC code is 6 22596 20130 4 ) Let me know what you think of this as either a temporary or permanent fix. (Hopefully you have not yet spent the money on the repair.) Good luck and... Feel free to pass this on. (I will also advise a few others.) Ron (in Toronto Ontario) PS (My newer car is not a GM.)
Subject: RE: Chevy Vortec V-8 Gas Engine
From: CHRISinSA
Date: 15-Apr-04
I have a 96 chevy 1500 with the 5.7 vortech. I'm having a problem on the ODB II scanner I get code p1345 Crank position sensor/ Cam position sensor correlation. I have Metered out the crank sensor have yet to meter out cam sensor. Has anyone had this trouble code before and if so could you tell me how to go about curing it? It buck at take off and all speeds slightly more so 45 mph and up. Thanks
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jbarnes@ideafamilies.org
Date: 13-Apr-04
I own a 99' 3500 4x4 crew cab w/ 7.4 vortec, anybody ever found a "power chip" that actually increases fuel mileage? I don't need anymore h.p. just the economy.... also anything else that might be done ie exhuast, intake etc... Thanks to everyone
Subject: RE: Chevy Vortec V-8 Gas Engine
From: TAHOE MAN
Date: 13-Apr-04
MAN MY BRAKE LIGHTS DON'T WORK ON MY 96 HOE. THE REAR TAILLIGHTS, BLINKERS, HAZARDS ALL WORK FINE. BULBS, FUSES ALL CHECK OUT OK. WHATS THE PROB???? SEEMS AS IF ITS WIRING OR CONNECTINOS BUT THAT KINDA SHIZNIT I DON'T UNDERSTAND. ANY INSIGHTS WOULD HELP MY DIAGNOSIS.
THANKS,
CHEVY LOYALTY
Subject: RE: Chevy Vortec V-8 Gas Engine
From: joe_zrt@hotmail.com
Date: 10-Apr-04
i have a 1998 K1500 5.7L vortec. replaced the intake gaskets. replaced the crappy heater hose connection twice(screws into intake and leaks down the intake manifold to the back of the engine and down in between the engine and tranny). i have heard all the complaints about the engine noises and i have them too. the engine runs strong. about 5,000 to 10,000 miles ago it started to knock after sitting over night. after about a minute of idleing it is gone and after 20 seconds of just driving it it's gone. i have shorty headers and you can hear what sounds to be the lifters or something in the valvetrain on the passenger side. i've heard the valves need to be adjusted but others say they have self adjusting valve train. as for the knock from what everyone else is saying is it's the main and connection rod bearings. any help would be appreciated.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: djlimbau@aol.com
Date: 08-Apr-04
Any easy way to get a 1996 5.7 vortec distributor back in step with the rest of the car?!! I'm a determined do-it-myselfer and after a intake gasket swap, my distributor marks were invisible! She'll run fine for a while and then get 'jiggy' on me!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Jeremy in bham
Date: 07-Apr-04
I have a 96 chevy tahoe. Sometimes when I star it sounds very loud and shakes. I also have to restart it. Does anyone know what this might be?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rchumpert@aol.com
Date: 07-Apr-04
Re my post of March 28.
After extended discussions with GM, the Dealer, etc. GM has agreed to pay half of the cost of replacing the hydraulic valve lifters. Total cost is $1660 since the heads must be removed.
Bettern than nothing which was what they offered before.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: TAHOE MAN
Date: 07-Apr-04
IF NOT YOUR BATTERY OR ALTERNATOR THEN I BET ITS YOUR STARTER AND I THINK YOUR WATERPUMP AND IT NOT STARTING IS JUST A COINCIDENCE. I WOULD GO TO AUTOZONE AND THEY WILL CHECK THE VOLTS ON YOUR BATTERY AND ALTERNATOR. IF YA CAIN'T JUMP START IT THEN ITS YOUR STARTER. I HAD TO REPLACE MINE AT THE DEALER FOR 600 BUCKS (INLUDES LABOR) BUT THE STARTER IS LIFETIME GUARANTEE IF ITS A GM PART SO I GUESS ITS WORTH IT. I STILL BELIEVE IN GM. NO CAR IS PERFECT AFTER ALL THEY COME OFF AN ASSEMBLY LINE AND MAYBE SOME CARS GET PUT TOGETHER CRAPPY AND SOME DON'T. MINE WAS MADE IN MEXICO. SO MEXICANS WORK HARD AND DO A FAIRLY GOOD JOB.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Wont start after replacing the water pump
Date: 07-Apr-04
I just replaced my water pum on my 97 chevy sierra 5.7 vortex. The very next day it was a hard start and now a day later there is no start at all. Any ideas?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: mcnair11@bellsouth.net
Date: 06-Apr-04
I went to the transmission shop and got the guy to drive it and he said it was some metal valve that had worn out and it cause this other part to pulse shaking the whole truck, i am gonna keep checking and get a fuel pressure test done soon , email or post any answers! mcnair11@bellsouth.net
Subject: a problem resolved
From: philly
Date: 05-Apr-04
i own a 1999 chevy suburban, 7.4L. i had all the problems discussed above. wiper controller, two intake gaskets, etc. one problem that threw me, missing on #5 and running rich. it turned out to be the fuel back pressure regulator had a cracked diaphram. the excess fuel leaked directly into the intake and flooded #5. fuel pressure holding test found this. I WILL sell this car now. my latest is the transfer case housing has broken. sheared all the way around. beth321@yahoo.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Mcnair11@bellsouth.net
Date: 03-Apr-04
----I own a 97' Z71 witht the 350 votec 5.7L, The problem i am having is under a load or climbing a hill, when you mash the gas or take the truck into passing gear it wont go , acts like it loads up or something, this makes the check engine light to come and and the code says that the #5 and #7 injectors have missed fired. I have already replaced the altinator, intake gasket,#5and #7 injectors and cleaned the rest of them, I STILL HAVE THE SAME PROBLEM, also went and had the CATS checked out and there fine. SO WHATS THE PROBLEM!!!!!?? ANY INFO PLEASE EMAIL, I NEED MY TRUCK RUNNING AGIAN> Mcnair11@bellsouth.net
Subject: RE: Chevy Vortec V-8 Gas Engine
From: W.HARTMAN@INSIGHTBB.COM
Date: 01-Apr-04
IF ANYBODY HAS HAD PROBLEMS LIKE I POSTED PLEASE CONTACT ME, I THINK IF WE GET ENOUGHT PEOPLE TOGETHER WE MIGHT BE ABLE TO DO SOMETHING.COMPANYS SHOULD STAND BY THEIR PRODUCT.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: W.HARTMAN@INSIGHTBB.COM
Date: 01-Apr-04
I OWN A 1998 Z-71 EXT/CB 1500 TRUCK WITH 5.7 VORTEC IT HAS 43000 MILES ON IT,COLD ENGINE KNOCK STARTED AROUND 40000 MILES, THE DEALER SAID IT HAD SPUN MAIN BEARING THEY ARE GOING TO REPLACE IT WITH A SHORT BLOCK, BUT THEY DO NOT WANT TO CHECK OUT THE HEADS, THIS TRUCK HAS HAD A ROUGHT IDLE PROBLEM SINCE IT WAS NEW, THIS TRUCK HAS BEEN IN THE SHOP, FOR IDLE PROBLEMS TO AT LEAST 3 DEALERS THEY ALL SAID THERE WAS NOTHING WRONG, THE RADIO HAS BEEN CHANGED 3 TIMES, BOTH REAR WINDOW LATCHES HAVE BEEN REPLACED, INTAKE GASKET CHANGED. NEW WATER PUMP,NEW BELT TENSIONER,ALL AT AROUND 40000 MILES, DRIVERS DOOR HANDLE INSIDE & OUTSIDE REPLACED,AND IAM SURE THERE IS SOME THING IAM FORGETTING ON THIS LIST, I DONT THINK YOU SHOULD PAY CLOSE TO $30000 FOR A TRUCK TO HAVE THIS MANY PROBLEMS, AND BUY THE WAY THIS IS THE FIRST CHEVY I HAVE EVER BOUGHTAND IAM SURE IT WILL BE THE LAST.......
Subject: RE: Chevy Vortec V-8 Gas Engine
From: smbrink@swbell.net
Date: 31-Mar-04
It should be on the distrubutor cap.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 31-Mar-04
can anyone tell me the piston order for 1997 chevy vortec 5.7
Subject: RE: Chevy Vortec V-8 Gas Engine
From: smbrink@swbell.net
Date: 29-Mar-04
I replaced the intake manifold gasket in my 97 tahoe 350 after an service engine light reading a misfire #5 cylinder. Of course that was after changing plugs and plug wires. When I went to my dealer for a quote and heard it would be about 600 bucks I decided I would give it a try. The dealer also informed me that GM now uses a different(Better?) gasket. It really wasn't that bad, it only took 7 freaking hours! But now It runs like brand new but I don't know for how long.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: rchumpert@aol.com
Date: 28-Mar-04
I have a '94 GMC Sierra 3/4 ton 4x4. This truck has 230,00 miles on it and so far, no problems. A couple of alternators because we have auxiliary electrical stuff on it. It carries a 1 ton steel box of cattle feed and is driven 40-50 miles per day off raod through mud and sand. What a truck!! Not even a new clutch yet.
So I bought a 2001 GMC 2500 HD 4X4. A mistake, it has 76,000 miles on it and sounds like a diesel. GM has stonewalled me. I like GM trucks. I use the recommended oils, etc. A new block is $5,000. Solution --
I know a GM Dealer right next to the freewat where you can't hear a thing. I'm going to trade this truck for a GM with Duramax or a Dodget Diesel so that I can get another customer thoroughly ticked at GM. They need to go back to school.
By the way, is it true that to replace a valve lifter on the new 6.0, 5.3 and 4.8 vortecs it is necessary to remove the cylinder head?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: msmitchellmary@yahoo.com
Date: 26-Mar-04
I have a 1998 Chevy Astro, 4.3 vortec engine. My problem is after I have been driving through mountainous country, and espec ially when I use the air conditioner, when I am at a full stop and start up again the transmission has a hard jerk, only in first gear. If I let it set a little bit with the engine off when I start up again it´s fine. Also, today my service engine light came on. What's your diagnosis?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: nomo'rocks
Date: 24-Mar-04
Had '99 Z-71 5.7L with 50,000 miles, began to knock, and lost all oil pressure. Had engine rebuilt, and did better but couldn't solve the cold knock. Also had a '95 Z71 that burned up and I sawed it in 2 to make a trailer. I got tired of throwing money away in it and sold it and got a Ford FX-4, no problems since.
I learned that if you want job security and make good money, sell Chevy parts, the demand is so high you can make a killin'.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: BEERZ168
Date: 24-Mar-04
Hi Ya'll, I have a 95'Z71 with 202,000 miles on it. Its been a great truck. I do however want to improve it dramatically. I wan to install a 350 Vortec long-block GM Crate Engine (12530282) brand new, and use the GM Performance Vortec TBI Intake Manifold (12496821). The EGR is of no use to me, they always foul up and stick, causing the Service Engine light to come on while on the highway. I also have some Hooker long tube headers on it. Will the bolt pattern on the headers match up? I plan on putting a new distributor, will I need to use a bronze gear on it? What other problems will encounter that anybody is aware of? I am also goint to overhaul the tranny with a Jet Chip Kit with the Jet Converter. The tech there said that its stall was about 500 rpm less than stock to get more torque and less heat. I do pull alot and offroad in heavy sand. Its got 3.73 gears, 14 bolt S/F rear end and all the heavy duty options for a 1500. Any info would be appreciated. Good Truckin'
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Howard in Oz....hquick@bigpond.com
Date: 23-Mar-04
Hi All, Just bought a 98 GMC(Holden here in Australia) Suburban. Had 70,000Km's on it. (about 40,000 miles I guess). Blew it up last week. Motor started knocking whilst driving so I pulled over and called a tow truck. Got it to the local dealer who pulled it down to find the problem. Seems it dropped a main bearing. I should get the car back tomorrow as well as being $7000.00 poorer. Needless to say I'm pretty cheesed off!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: eerobles@mmm.com
Date: 19-Mar-04
I have a 1987 Chevy Silverado I replaced my control module, two years ago because my truck would turn off when i would be at a stop sign or stop light. Before replacing the module i went ahead and replaced my fuel pump and fuel filter i also had my ignition switch and my steerign column fixed because it had to much play in it. Now my truck is doing the same thing as when i had all these stuff done a couple of years ago. I replace the module again but it is still shutting off when i make stops and sometimes when i want to started it doesn't want to start and i end up draining my battery. If anyone have any advice i would really appreciate it. I do not want to start replacing parts if i am not sure what might be causing the problem.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ChrisK@fullmoonventures.com
Date: 18-Mar-04
I recently had an interesting conversation with a service manager at my local Chevy dealer. Since I bought my 99 Tahoe in 2001. I've had to take it in twice for a situation where the check engine light comes on after trying to tow something heavy or trying to climb a hill with over 3000RPM. The symptoms include a near total loss of power and a major shudder in the engine. First time the dealer said my catalytic was bad and two fuel filters were clogged. Those were fixed and problem went a away for 3 weeks. Second time I took it back, he mentioned that there was a "known" issue with certain "r" engines that had a tendecy for valves to stick? It supposedly tends to happen after about 70-80 miles in the 5.7 Vortecs. However, he just took me for another $600 saying that wasn't my issue but rather the spark plugfs were bad and I needed to change wires and distributer as well. Guess what..problem disappeared for three weeks and then started again. Any ideas what I should say when I take it back again? Since I already hit 88K miles in 4 years, I'm wondering how many other will see this problem soon if it's true.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: itchybees@yahoo.com
Date: 17-Mar-04
I bought a 2002 Silverado 1500HD crewcab 6.0 Vortec and have put 100000 kms on it through 2 Alberta winters here with none of the above mentioned problems. Still got the power and engine purr she came with. Good maintenance and good luck I guess. I am wondering if 2002 was a fortunate year in the GM production line?
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 17-Mar-04
Can you tell me what an underdrive pulley system is, and what it does?
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 17-Mar-04
My suggestion would be to get an older model Chevy Truck that has the 350 Vortec engine. I have a 97 Tahoe with the following mods ( flow master dual exaust, Air Rade intake system, throttle body spacer, Jet performance stage 2 module and the underdrive pulley system) My gas milage has improved to around 20mpg if I keep my foot out of it and the power increase is amazing!
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 16-Mar-04
Mwsun.. What the hell are you talking about?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Mwsun78
Date: 16-Mar-04
how the hell do you set idle with timing on a 97 GMC 350 vortec?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Big Daddy
Date: 15-Mar-04
I rode to work with a fellow a few day's ago who claimed his Ford truck which had (I think he said) 90,000 miles on it, only got 10 miles to the gallon. And this truck is a regular cab with a 6 CYL..... Well, I talked to another fellow today that I work with, who now claims that his Ford truck just turned over to 320,000 miles and still gets decent mileage, and this guy claims that synthetic oil is what he has always run. Sound's like we need to give up dinosaur oil.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ART
Date: 15-Mar-04
Wade, this seems to happen gradually with any vehicle with the increase of mileage, I don't care what make it is. It don't matter if it is a Ford, Dodge, or whatever. The best way to insure good mileage is prevention, in other word's run full synthetic oil in your beast. I don't care what anyone say's, the 5.7 Vortec is a good engine. Mine has had no problem's, nor has anyone else's around where I live. You might want to run an oil additive that will bump your compression, and see if that gives you better gas mileage, if it does then maybe a ring job might be in order.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Melanie
Date: 11-Mar-04
I have a 98 Chevy Blazer. The intake & water pump just had to be replaced. My mechanic told me that every 5 years they go out in these. The only other problem I have had out of my Blazer is the 4X4 is slipping between 2 and 4 wheel drive. The dash light says it is in 2 WD, but it is making a horrible noise. I have to stop and put it into 4wd and then back into 2wd and I'm fine again for a couple of days. No one seems to know what this is. They replaced the shifter - didn't fix it. Now they want to replace the transfer case. This concerns me since they seldom go out especially when they have rarely ever been used. Has anyone else had this problem? Does anyone have any suggestions on what might fix it. I would greatly appreciate any input. Please email me at mdhooke@skida.org.
Thanks!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Wade
Date: 09-Mar-04
I just happen to stubble across this sight and from the looks of it I'am not the only one with a gas problem. But anyway, I own a 97' 2500 with the 5.7 vortec. I noticed about 80k my mileage went from 17 to 11mpg. Its now at 140k and holding at 10mpg. Is that the nature of the beast? No one seems to know what caused it. I've tried K&N filterand plugs,I sure could use the advice if there's something else that would improve my mileage. LLaFollett@aol.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: banjotruckin@yahoo.com
Date: 08-Mar-04
Ok, so now I know not to go to Advance auto parts for engine rebuilding parts. I bought a crank kit in plans to freshin up my 96 5.7 in a Tahoe. Did all the normal overhaul stuff. Installed the remanned crank from Advance, heads, oil pump, cam & lifters. 37 miles into test drive the oil pressure takes a dump. Back out the engine comes and the mains are all wiped out. Seems they gave me a regular 305 crank that does not match a Vortec. DUH! Thier supplier don't even know the difference. They cannot get me a good crank and now my original is lost in thier system of core turn in's. Now I am cranky cause I'm crank less, 4 weeks waiting and no engine. What's to do?????
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 07-Mar-04
right
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ray
Date: 07-Mar-04
to evryone complaining about ther vortec i own a 97 z71 beside being a gas pig its the best truck i ever owned my oil change is done evry 5 k cooling flush evry year all reg maintenance no problem i have 95,000 k and purring like a kitten no intake gasket prob no knocking no missfiring and no trany problem do your reg maintenance =no prob
Subject: RE: Chevy Vortec V-8 Gas Engine
From: cody
Date: 01-Mar-04
how aften should you have a tune-up on your motor ? mine has like 88 thousand miles and its a 97'.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: houndman
Date: 28-Feb-04
sorry wrong email new one is pdblake@torchlake.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: houndman
Date: 28-Feb-04
i have a98 tahoe changed imgskts have a miss at idle on #4cyl.replaced inj.no diff.did the whole routine ck.still miss at idle where do i go now please e mail to silverkid@torchlake.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Ray in Florida
Date: 27-Feb-04
Bought a used 97 GMC K1500 5.7 Vortec. Had the leaking manifold gasket at 70K miles. Replaced it. The cold startup knock began at 100k miles. I have 127K miles on it now. Seems that the knock is louder and last longer this winter. Had a mechanic recommend oil pump replacement although oil pressure is fine. Engine is properly maintained. Bought a new 2001 Tahoe with 5.3. It too has cold startup knock that started at 30K miles. I guess I learned nothing from my first Vortec. I am preparing to buy a new truck and it won't be a GM product. Thanks for reading my saga!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: GWRcutter@cs.com
Date: 25-Feb-04
I have a GMC both a 01 and 02 4x4s and they use oil. Its the 8100 engines in both and I complained and was told that the oil consumption of 1qt to 100 gals of gas is the right amount of oil for that engine to use. BULL...Tell that to people looking to buy a vehicle before they do and you won't sell another. I want to write everyone I can at GM about this problem and I could use some help with email addresses or names. Any one out there that can help email me THANKS
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Jerry in Michigan 8100 Vortec
Date: 25-Feb-04
I have a 2002 Gmc 4x4 with the 8.1 and I like the motor for power and pulling which it has alot of but...............IT DRINKS OIL AND MAKES NOISE WHEN STARTING. I complained to GM and bitched a lot and now they have given me a warrenty for 75000 miles and 5 years which ever comes first. I tell you guys new trucks and mine has now 27000 should not use oil. So if you have one call and bitch and get the warrenty. After this truck I will go back to Ford
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 4X4
Date: 24-Feb-04
Hey, you want to read about some problems? ...... Type (F150 problems)on your search engine.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 24-Feb-04
I have a 8100 engine in a 2002 Gmc 4x4 and it uses oil more than a quart to a 100 gals of gas. Any one else have this problem? Gm gave me a extended warrenty for 5 years or 75000 miles because I bitched.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jeff
Date: 23-Feb-04
Rest easy fellow vortec owners.I'm a field mechanic for electric coops. This gets me up close and personal with fleet managers. Three of whom run nothing but chevys. They have all had the knock some worse than others, dosent matter hot or cold. The majority of the vehicles have between 30,000 and 170,000 miles on them with no internal engine problems . They all agreed that the TBI motors were the best. The vortecs intakes were the only problem with them and GM has some of the most durable transmissions on the market.They run 15/40 oil and wix or ac filters change intervals between 3 and 6,00 miles no fancy additives or snake oil. I myself own a 95 3/4 ton with the 5.7 and its had the cold knock since new,purrs like akitten when warm 130,000 miles oil change every 6000. oh and intake gaskets every 50,000.Bought a 2003 with the 4.8 great on gas great power but "knock click whir" and a couple of normal leaks (valve covers , crank case cover, and rack)Guess when it goes out of warranty I'll fix it. other than that I love it. For safety reasons get rid of the wranglers any wet weather and youll be glad you did.Remember if yours is nocking your one of the few with the normal chevy! THATS NOT PISTON NOISE THATS "CHEVY THUNDER"!!!!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: billreaves@charter.net
Date: 23-Feb-04
Hey guys here is a reply I received form GM regarding the porblems with the Vortec engines. I have been following up with them and urge everbody to email them with their concerns and comments regarding a class action law suit and campaign to exploit this problem. I am onboard for this. The question is are you?
Read On
Dear Mr. Reaves,
Thank you for contacting the Chevrolet Customer Assistance Center. We appreciate you taking the time to write us in regards to an article in Forbes and entries in websites concerning certain Chevrolet trucks with piston slap.
We appreciate your interest in GM. We value the opinions of our customers. GM has been addressing the issue of engine noise from the pistons on a case by case basis as each owner contacts us. We have documented your comments in request number 1-189584995.
Again, we thank you for your e-mail and your interest in . If you should need to contact us in the future, you may e-mail us again or call our Customer Assistance
If you are experiencing any concerns with your Silverado, please go to the service department of Clinkscales Chevrolet or any Chevrolet dealer of your choice. We at the Chevrolet Customer Assistance Center are unable to recommend any one dealer in your area. You can locate a dealer of your choice by visiting our website at http://www.gm.com and selecting Vehicle Shopping and then Dealer Locator or by simply clicking on the following URL: http://www.gm.com/automotive/vehicle_shopping/dealer_locator/
You will then enter in the appropriate information to locate the dealer nearest to you.
If you should need to contact us in the future, simply reply to this message or call our Chevrolet Customer Assistance Center at 1-800-222-1020. Customer Relationship Managers are available Monday through Friday from 8:00 a.m. to 11:00 p.m., Eastern Time.
Again, thank you for contacting Chevrolet.
Sincerely,
Pat Boggs Customer Relationship Manager Chevrolet Customer Assistance Center
And this was my reply.
And this 1-189584995 means what? Does this mean that GM is going to do something about this problem or do I need to speak with my attorney on this issue. I am sure this is not the only e-mail you have received regarding this same scenario. I think its time GM either be made to replace these engines or face a huge legal battle. I am afraid that addressing the issue has gone long enough. Its time the CEO's at GM get off their backsides and resolve it once and for all, we paid good hard earned money for our trucks and cars and I' am sure a nation wide campaign exploiting how GM has shoved this issue under the rug would really hurt future sales. Just be fair warned that there are thousands of individuals like me that feel the same, and we are prepared to do what is necessary to resolve these issues. Once again I have included this Comment site that is really heating up, I suggest some read these comments , and this is just one site there are many more like it scattered across they web.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jake
Date: 22-Feb-04
96 chevy truck 350 vortec,75,000 miles, number 5 plug has oil/ash deposits, changed valve seals problem still exists.using 1qt.of oil every 800 miles. what am i looking at a oil ring?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: jake
Date: 22-Feb-04
96 350,75,000 miles number 5 plug has oil/ash deposits, changed valve seals problem still exists.using 1 what am i looking at a oil ring?
Subject: 96 vortec problem
From: jake
Date: 22-Feb-04
My 1996 chevy truck 350 just started to use a little oil, 1qt for every 800 miles.Prior to this it used none between 3000 mile changes. I noticed a rough idle when cold. I tuned it up and found oil/ash on number 5 cylinder. replaced valve seals no difference. Truck is running pretty good but I hate the fact it is using oil. what am I looking at an oil ring?
Subject: RE: Chevy V-8 Gas Engine
From: daz3@comcast.net
Date: 20-Feb-04
I need to know if I am able to swap my 4.3lt engine for a 5.0lt engine. I have a 1991 Chevy K1500 4x4. I was told once that I couldn't because the transfer case wouldn't be Strong enough. Please someone let me know the answer. Thanks,
Michael
Subject: Reply to KevinChat1@aol.com
From: Dan
Date: 19-Feb-04
Hey Kevin. If I read your post correctly you want to swap out your 5.7L vortec with an older 350. All you should have to do is buy a new flex plate for the older model motor so the torque converter bolts will matchup. A good dealer can crossreference parts for you, or a specialty shop should have one. Ive done this in the past. If your new tranny is a th4l60 and the older motor mounted up to a th700r4 they will bolt up fine. The motor mounts are the same as well.
Vortec heads are not a direct bolt on for the 350's before '85 I think. Something to do with the placing of the water jackets, They can be modified to work. I could be off on the year though. They changed the 'ole 350 heads in '72, '79, & '88, and Im not sure when the first vortecs came out. There were a few variants in between like the ones with crossfire. And of course there are four bolters and two bolters, splayed and straight, but that doesnt matter for a straight swap.
I hope that helps. If not, post back. Dan
Subject: RE: Chevy Vortec V-8 Gas Engine
From: TAHOEMAN
Date: 19-Feb-04
I DRIVE CHEVY AND THATS ALL I HAVE TO SAY. QUIT YOUR BITCHIN AND WHINING. IF YOU DON'T LIKE IT THEN SELL IT.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: KevinChat1@aol.com
Date: 18-Feb-04
I have just purchased a 1997 chevy 1500 truck and it has a 5.7 liter. This truck has 208,000 miles on it and it still runs fairly decient. I also have an older 350 with the 2 piece rear main seal that I have recently put back together. I am wanting to swap these motors out but I am not sure of just how to do it and what I am going to have to go thru to get it all to work?? I know that vortec heads will fit a older chevy s/b " and I am thinking that this will fix the fuel problem if I was going to have one?? also I Know that the cranks are different like the flex plate??? I work at a large oil tool manufacture as a machinist and I could possibly fix that problem also but I would like some info on someone who has tried this and if it was a go? any info please email me back at KevinChat1@aol.com
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Billreaves@charter.net
Date: 17-Feb-04
GM bought back trucks with loud engines - lawyers Reuters, 11.14.03, 2:49 PM ET By Michael Ellis
DETROIT (Reuters) - General Motors Corp. has quietly repurchased dozens of full-size pickup trucks and sport utility vehicles, its most profitable models, after customers complained about knocking noises from the engines, lawyers for the owners said Friday.
GM, the world's largest automaker, confirmed that it has received a small number of complaints of engine noise when starting the vehicles, which include the Chevrolet Silverado and GMC Sierra pickups. Also affected are the Chevrolet Tahoe and Suburban and GMC Yukon and Yukon XL SUVs from the 1999 to 2002 model years with 4.8 liter, 5.3 liter and 6.0 liter V8 engines and the 2002 Cadillac Escalade SUV.
GM spokeswoman Debbie Frakes said only a small percentage of the millions of GM pickups and SUVs sold over those years had engines that made a knocking noise during the first few seconds after starting, especially during cold weather.
"The only known effect of this condition is an audible sound that typically occurs during the first five to 30 seconds of start-up," Frakes said. "The condition does not create any degradation of durability, performance or safety."
She said that GM has encouraged consumers who have knocking engines to take their vehicles to a dealership. Frakes said that GM is handling consumer complaints on a case-by-case basis.
She declined to say whether GM has bought back any vehicles.
However, two lawyers who specialize in so-called state lemon laws, which give consumers legal recourse for faulty vehicles, said that GM has bought back many of the pickups and SUVs when they couldn't repair the problem.
"Numerous people have had these things bought back, because of the engine problems," said Brian Parker, a lawyer based in Bingham Farms, Michigan, who represented some of the GM vehicle owners. "They've got a lot of problems with their engines, for whatever reason."
Adam Krohn, a partner of the Chicago-based law firm Krohn & Moss, which handles "lemon law" cases in nine states, said that GM has bought back more than 100 of just the Silverado and Sierra pickup trucks from his clients alone, most for the engine-knock problem.
"I would say from '99 to present, these two models, I can safely say we've had probably over 100 repurchased," Krohn told Reuters.
ROAD TO REDEMPTION
Frakes said that GM has fixed the problem with the faulty engines, which was first reported by The Detroit Free Press Friday. She said it was caused by carbon buildup in the pistons for the 6.0 liter V8 engine in mid-model year 2002, and on the 4.8 liter and 5.3 liter V8 engines for the 2003 model year.
"We're always concerned if a consumer experiences any engine noise whatsoever," Frakes said.
Earlier this year, GM launched its "Road to Redemption" ad campaign, acknowledging its past quality problems while asserting its recent improvements in closing the gap with its Japanese competitors, notably Toyota Motor Corp. and Honda Motor Co. Ltd.
Frakes said that the engine knocking noise did not warrant a recall by the U.S. National Highway Transportation Safety Administration because it did not cause any safety problems.
Buying back faulty trucks is sometimes cheaper than a recall, Krohn said. "They could easily put me out of business. But it's cheaper for them to pay me, and not do the right thing."
Hey guys I have copied all these cpmplaints and i will be emailing all of our concerns to GM. i too am experincing the same problems
Subject: RE: Chevy Vortec V-8 Gas Engine
From: BIW
Date: 17-Feb-04
TO SILVERADO, HE TOLD ME IT WAS PISTON SLAP. AFTER READING THIS WEB PAGE IT SOUNDS PRETTY COMMON. I WILL SAY THIS IT IS GETTING A LOT WORSE. I AM LOOKING AT A 2000 5.3 LITER. ANYBODY HAVING GOOD LUCK? JUST RECENTLY STUMBLED ACROSS THIS WEB PAGE, NOW I DON'T KNOW WHAT TO THINK ABOUT THE VORTEC'S.
Subject: RE: Chevy Vortec V-8 Gas Engine
From:
Date: 17-Feb-04
Chevy 350 is powerful and the strongest motor will last long if you take care of it the engine so i have 83 chevy 350 and i take of it
Subject: RE: Chevy Vortec V-8 Gas Engine
From: allis bitch
Date: 17-Feb-04
1997 v8 vortex- multiple misfires = need a new coil need to readjust the timing started to ping like the timing needs to be advanced again,no service engine light on.anyone have this problem or why this is happening?
Michaellapolla2003@yahoo.com
let me know any suggestiions!
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Joe Rouhani
Date: 16-Feb-04
I have 2001 V8 Vortec GMS Ex cab with 21K miles - I purchased it new. However, I have problems with burning/losing oil - there is no leak, one time the oil light came on. It seems it burns/loses oil about one quart/3000 miles.
I know several poeple in this list complained about the same problem. The GMC dealer says this is new to them, and they are going to look at it on Wed.
Did anyone find out the source of the problem? Any other reactions from dealers?
Thanks, Joe.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Phil
Date: 14-Feb-04
For those of you who have pision slap and want to sue chevy go here and fill out the survey.
http://www.girardgibbs.com/PistonSlap.html
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Red Eye
Date: 13-Feb-04
Ron .... thanks for sharing that man!! Sounds like that stuff might be good in any engine, piston slap or not.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ron.raley@comcast.net
Date: 13-Feb-04
For what it's worth, I had a piston slap in my 2000 Silverado with 46,000 miles. It lasted about 20 seconds when the engine was cold. My Chevy dealer had told me they were aware of the slap but nothing could be done about it. So I bought a gasoline additive called RXP that was advertised on the internet (and sold by AutoZone). After adding it to my gas and driving a little over 1000 miles on my vacation, the piston slap went away. I can only assume it was a carbon build up and the RXP took care of it.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: 96 TAHOE
Date: 13-Feb-04
ANYONE RECOMMEND AFTER USING REGULARY OIL FOR 100k MILES TO SWITCH TO SYNTHETIC OIL. WOULD THERE BE ANY PROBLEMS?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: old man chevy
Date: 12-Feb-04
Brian help use all, I called 8 guys today {all friends I have looking for someone with this going on {piston slap} I failed to find anyone with this problem. A good gasket set for a heads up is less than $50.00 take a head off and look for damage. I had a 3/16 nut fall in a carb once in the 80,s on a 400 pontiac at the race track. I didn,t know it had done so. when I fired it up it sounded like some one beating on the block with a hammer I thought I had blowed it up. then it stopped. you ask how I new it was a nut. that fall when I rebuilt the engine # 6 piston had a inprint of the nut. if your piston gets taller in the cold weather and hits the head at top dead center damage will be there. Take a photo of the crushed piston and post it. I had a 454 block decked once and the guy running the cutter thought he was in the army and took to much off we fired the engine up and all hell broke loose along with part of the head. you could not tell with the eye the block had been cut to much but the motor new. we lost a head and 4 pistons. I do think that if your pistons are so close to 0 clearance damage will be seen on the piston. Please someone post a photo of damage. Thanks and good luck p.s. 145000 mi the engine could use a little love any way
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Silverado
Date: 12-Feb-04
Brian, what did your mechanic say was causing the knock? I know that Chevy went with the shorter piston's in I think 1999, not 100% sure about the year, but from what I understand piston slap is not common in the 5.7 Vortec. Am I wrong about this?
Subject: RE: Chevy Vortec V-8 Gas Engine
From: Brian in Wichita
Date: 12-Feb-04
I own a 97 Chevy 1/2ton 1500 silverado with a 5.7 vortec. Bought it in the summer with 119,000 miles. Two years later it has 145,000. Good motor ,but it does knock. Seems to be noticable in winter on very cold days. I also have had the intake gaskets changed. I know this is a few miles and is probably to be expected. But I was surprised to find out from my mech. that this is a very common problem for both things. He said he was suprised to see that the gaskets lasted as long as they did. He told me 4 out of 5 Vortec's that come in do this at or around 75,000 miles on the gaskets. He told me the knock was normal and not to worry about it.{ I would like to add that he isn't a dealership} I am sold on Chevy trucks, but trying to sell it could be a problem to someone who has'nt heard about this knocking problem. It is also hard to tell what a common knock is or a problem knock is . I would probably be hesitant to buy one if I didn't know about this.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: ExclusiveElement
Date: 11-Feb-04
Dan ... that was well put man!!! I have read all these post's myself, and I too have noticed that there are tons of question's but very few answer's. I do know for a fact that every single brand has it's glitches. (see Ford problem forum's or Dodge problem forum's, ect). I will say however that my 350 Vortec gives me nothing but good service in my pickup truck, if the intake gasket ever goes bad, I'll replace it and forget it the next day.
Subject: RE:Thank you Old Man Chevy
From: Dan
Date: 11-Feb-04
Here Here I'll drink ta that. I think alot of the guys that post their gripes on here dont even try. There is no magic button to push that will fix your problems. Even though these engines are computer controlled, the basics still apply. The piston slap issue sounds like an octane problem like I've said before. Ive read every post here a few times, has anyone ever tried av gas to see if it helps? Or would you rather blow your engine because GM didnt give you a straight answer? That makes alot of sense. Has anyone even done a simple compression check to see what your running? No GM doesnt say your engine is running at a higher compression ratio, but that doesnt mean that it isnt. Gasoline differs from summer to winter and from region to region. Octane can be measured in several different ways. So dont take anybodies word for it. Do your own homework and see what works in your engine. Fact: The only thing you should be able to hear from outside the vehicle when its running is the exhaust, the fuel pump, and the fan when it kicks on. Any thing else means there is a problem.
There seems to be a very high ratio of questions on this bored and noone answering them, or following up on what works for you. I personally have never heard the pistons slap on any new vehicles so I am at a loss on first hand knowledge. I drive a 98 chevy 3500 crew cab with a vortec engine in it and have had nothing but excellent chevy performance as I always have had.
Some of us shade tree mechanics have seen things happen that the manufactures said dont or cant. We can all figure out a solution to most problems if we work on them and share the knowledge. Unless the only thing that you are going to contribute to this bored is a gripe or a question without a followup on what youve done, then we are all wasting our time posting.
Subject: RE: Chevy Vortec V-8 Gas Engine
From: old man chevy
Date: 11-Feb-04
Well........ back in my day when a engine sounds like a semi truck your gas was to cheap, compression on the newer engines have been going up in the last 10 years in the 70,s 8.1 was high we wanted power we got a bigwheel from k-mart. now the big three are in a power war again the best time for power was in the 60 s and now. with what is going on for those lads who have never spent a day at the race track and thinks a toywishicould is a truck your engine can not run on todays gas. To find power the engins compressions were raised to almost 10.1 and all you need is a little carbon build up from using bad gas and bingo. By the way this can kill a good motor. I have had two chevys with vortec engines 350 in one and 454 in other had no trouble. 94 o all the time. The fix go to your local airport fill your tank with 100 o and take off the caddy {it,s filled with carbon if you are hearing the clap)and replace with straight pipe. stop crying I can change a intake gasket in the time it takes you to find the phone book to call gm and complain. Cost $30.00 $15.00 for beer for your friends to hand you tools. Just think in the 70 s the trucks had 170 HP and got 9 miles to the rust spot and I still like em. by the way the colder the weather the higher the compression. I,ll bullshit aside I hope this helps good luck guys
Subject: RE: Chevy Vortec V-8 Gas Engine
From: racefan8@dalejr.net
Date: 10-Feb-04
i have a 1998 vortec 454 it runnig so rich it burns your eyes i dont have catys on it but it just started out of the blue i changed all the o2 sencors ! any one know what the prob