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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 1, 2010
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Open Help Requests for GM
Help Request Answers
2004 Chevrolet Optra 2.0L wiper & ign VIN: KL1JD62Z44
Car stays running when shut off. If hatch is opened car will shut off. If harness to hatch disconnected problem remains. If washer switch operated car will shut off. disconnect wiper/ washer switch and problem remains. disconnect ignition switch and problem re...
2007 Chevrolet Silverado 1500 Classic WT 5.3L MIL Lamp on VIN: 1GC5C1M0Z7
Hey all, Kind of have a problem here. I have a 07 silverado that is setting a P0121 but the only way I can get it to act up is when I accelerate at 3/4 throtle up to 55mph from a stop (part of drive cycle) When this does happen it locks up my Modis system and ... Trouble codes: P0121 (TP1/APP1 circuit)
2000 GMC Jimmy Envoy 4.3L No Start VIN: 1GKDT13W2Y
Ok here goes... customer parks vehicle at work had no problems. after 8 hrs vehicle will not start (cold/snow weather)) vehicle is towed in for a no start condition. Vehicle sits inside overnight and still no start. 1st checked is spark good at coil and at plu...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Prizm 1.8L MIL Lamp on VIN: 1Y1SK5280Y
Many thanks to all of you who offered assistance - replaced the MAF and the MIL is staying off. Trouble codes: P0171 (system too lean bank 1).
2000 Chevrolet S10 4.3L No Start VIN: 1GNDT13W0Y
sorry for the long wait guys. Started over with my diagnosis to verify that I didn't miss anything. Outside temp dropped to below freezing and I checked fuel pressure again. Vehicle had been outside to free up shop space. The preasure rapidly dropped after...
2003 Chevrolet Venture LS 3.4L umder front floor mat VIN: 1GNDX03E53
Many thanks to all who replied, the fix was, in fact, the addition of a hose glued onto the drain pipe, as condensate was blowing back into the floor area despite an internal gasket that looked very adequate, we used a silicone spark plug boot for the fix, Tha...
2006 Chevrolet Silverado 1500 LS 4.8L cylinder heads VIN: 2GCEC13V86
Heads werent the problem. Pulled heads and had them redone. Dug a little deeper, and found a bad cam, as well as bad lifters. replaced cam and lifters, noise went away. Truck has been gone for two weeks.
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