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Prev Professional Automotive Repair Technical Discussions for September 28, 2011
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Open Help Requests for GM
Help Request Answers
2002 Buick Rendezvous CX 3.4L oil in cooling system plugged like mud VIN: 1G343T54ED
towed in over heated and found so much oil mixed in with coolant that everything is plugged with brown pudding like mud, the rad, the hoses, the engine, all of it. So I replaced lower Intake gasket , rad, hoses, bypassed oil cooler below oil filter. PROBLEM IS...
1986 Cadillac DeVille d'Elegance 4.1L Excessive Emissions VIN: 1G6CD6983G
Hello all, and thanks in advance for your time and input. I have run into a brick wall on this one. Need to bounce some ideals around. This customer car has been sitting for a couple years and he's trying to put it back on the road, with limited funds. Origina... Trouble codes: 30 (Idel speed circuit)
1982 Chevrolet Corvette 5.7L Misfire VIN: 3GA1Y61851
other shop has done alot of work. distrutor plugs wire. it run rough intermittedley. other times its perfect. no one has missed with throttle body stop srews. it feels like ign. but i woudn't bet on it. the injector spray pattern looks diferent ant the injecto...
1983 Chevrolet C70 C7D064 8.2L slow return to idle VIN: 1GBS7D4G5D
My concern is that the engine returns to idle very slowly. Both driving and in neutral, if you accelerate and let off the fuel, the engine maintains the same engine speed for about 5 seconds, and then drops to idle. Otherwise runs very well for a 8.2L.
2003 Chevrolet Tahoe Z71 5.3L MIL Lamp on VIN: 1GNEK13T43
I have a 2003 Chevy tahoe z71. I have gotten a continuous P0446 code since I purchased the truck in 2009. I have run all the test and followed all the diagrams. Have checked all the lines for holes, blockage and kinks. Everything has paned out just fine. I hav... Trouble codes: P0446 (Evap block or restricted vent path)
2008 Chevrolet Silverado 2500 HD LT 6.6L trany VIN: 1GCHK29275
truck came in customer said he was driving checking out hunting land came back to main rd.going home truck quit pulling and will go 5 mph without trany going to neutral the code is 0700a help me if you can thanks
2003 GMC Yukon XL 1500 SLT 5.3L abs VIN: 3GKEC16Z93
This one came in with the usual ABS codes, po265. Sent module for repair and now has a hard co251. All grounds have been checked leading me to believe this module is bad, internal solenoid failure. Has anyone seen this and what was the fix. Used and reman unit...
2005 GMC Sierra 2500 HD SLE 6.6L Radio VIN: 1GTHK23265
Dealer supposedly gave me the unlock code for the radio so 2 part question: 1: What is the unlock procedure . Mitchell seems to be of no help. 2: In the event i get the procedure, is there a decent website in the event he got the wrong code? Thanks in advance!
2001 Oldsmobile Aurora 4.0L MIL Lamp on VIN: 1G1NE52314
the light comes on after a couple of days. tested system with scan tool the electric air pump works and the solenoid comes on to give vacuum to both exhaust valves. i watched scanner when air pump is on and you can see the oxygen sensors go right down to lean ... Trouble codes: P

Fixes & Summaries for GM
Fix/Summary Answers
2001 Cadillac DeVille 4.6L Unknown VIN: 1G6KD54Y01
2004 Chevrolet Colorado 3.5L No Start VIN: 1GCDT14674
Well... Mike from Ohio nailed it. The truck quit completely and the owner had it towed to the Chevy dealer. They had it for two weeks. They replaced the fuse box and that didn't fix it. Then they replaced the anti-theft module and that fixed it. To repeat... O...
2007 Chevrolet Uplander LS 3.9L instrument cluster VIN: 1GBDV13107
The best option was to un solder the bulb took it to radio shack and matched it. a lot of work for a dollar bulb! Hope someone comes up with A replacement soon I have A fleet of these things and there blowing like crazy.
2005 GMC Sierra 1500 5.3L MIL Lamp on VIN: 132FDOI1CD
it ended being the pressure sensor above the tank Thanks i was sure i was doing something wrong with the vent solenoid location because i never had it were it didnt fix the code lesson learned Thanks everyone Scott Trouble codes: P0446.
2005 GMC Sierra 1500 4.3L No Start, Misfire VIN: 1GTEC14X05
well thanks to everyone, i did a lot of suggestions that were recommended by all of you. resmoked intake checked compression running as jennifer and ronald suggested. cylinders were all pretty equal. had to let it sit for the day to check again, but still had ... Trouble codes: P0300 (multiple misfire).
1996 Pontiac Grand Prix 3.1L No Start VIN: 1G2WJ12M8T
Sorry it took so long to close this request. Customer said he didnt want to go any further in trying to figure out the problem. so we never did figure out the true cause of the problem
2006 Pontiac Grand Prix 3.8L No Start VIN: 2G2WP55261
Customer pulled car out of our shop. Declined repairs, we found ground cicuit was open when car would not start. we told him we would try a new connector from gm. He said he was going to do that himself.
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