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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 29, 2012
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Open Help Requests for GM
Help Request Answers
2002 Chevrolet Express 3500 LS 5.7L Backfires VIN: 1GAHG39RX2
Greetings to all in automotive repair land. I am just beginning on this van and was hoping to get some insight on this van before I jump in feet first. First and foremost it is a Bi-fuel gas and CNG. Vehicle came in with MIL on, running poorly, misfiring and a...
2004 Chevrolet Silverado 2500 HD 6.0L Stall VIN: 1GBHK24U14
This was a no start or start and die like vtd. To start we accessed all modules and found that there was no communications with bcm.Went to pcm and found vehicle would start with inactive showing and then active and vehicle would die. Check power and ground to... Trouble codes: P1626
2007 Chevrolet Avalanche LTZ 5.3L starter VIN: 3GNFK12377
Customer came in for 4wd light on tech checked harness to the transfer case motor and now it won't crank. we are not getting the signal to the starter relay from the ecm to relay term 86. Before it wouldn't crank it started and stalled 2 times.
2008 Chevrolet Impala LS 3.9L compressor/control head VIN: 2G1WS55398
The a/c blows cold then intermittley the a/c blows warm and the a/c knob light flashes.
2002 GMC Yukon XL 1500 SLE 5.3L Mechanical VIN: 3GKFK16Z32
Thanks in advance on this one gm guys. I'm not sure on this one. Customer brought vehicle for "pulling while braking". We found no pulling issues, but when you turn sharp left or right it shutters in the whole front of the car. It only does it at slower speeds...
2000 Pontiac Grand Am GT 3.4L Cuts out, Misfire VIN: 1G2NW52E2Y
Vehicle randomally misfires on all cylinders at or about 2,000 to 2,500 rpm consitantly. Doesn't matter what gear vehicle is in. Can duplicate problem easily in first gear at 2,000 and vehicle will misfire until you slow down or speed up. If the egr is unplugg...
2003 Saturn L300 3.0L MIL Lamp on VIN: 1G8JW54R53
i have my nieces 2003 saturn L300 mil is on at all times while engine running and the wrench symbol above the engine symbol is also on while engine running.the scanner says mil is off and there are no codes.engine runs fine.all monitors passed.we are in memphi...

Fixes & Summaries for GM
Fix/Summary Answers
2008 Buick Lucerne CX 3.8L Fuel pump relay VIN: 1G4HP57258
Ok I have fix this car but still dont understand how/ or why. I put in a new fuse box and fuel pump. I had posted this hoping to find andswers but come out with none. I dont understand why the relay would get hot and melt on that pin if the fuel pump was bad. ...
2007 Cadillac Escalade ESV 6.2L Electronic VIN: 1GYFK66847
we erease the Hvac module original software, install a new software, and now everything on A/C system working fine, thanks for all your help
2003 Chevrolet Tracker ZR2 2.5L starter VIN: 2CNBJ73483
Thank you very much to all. I did fix the problem by changing the ignition switch. it is fine now. Thanks again for all your help.
2004 Chevrolet Express 2500 4.8L radiator, overflow bottle VIN: 1GCGG25V74
Thank you again to all that replied. When and if I get the chance to get this van back in and go over it again with the suggestions I receieved and have hopefully fixed it,I will update my post with a permanent fix.
2007 Chevrolet Suburban 1500 LTZ 5.3L Bcm VIN: 3GNFC16J77
Thanks to all of you who offered help. Because of time constraints, had to tow this one to the dealer for a new BCM and reflash. Tried the battery cable trick twice, also unplugged the BCM, to no avail. Anyway, customer is back on the road, we lost money on th...
2008 Chevrolet Cobalt LS 2.2L blower motor VIN: 1G1AK58F98
after working on the vehicle, i found that it was wired backwards, and also the cage blades were actually made backwards...i put a new blower assembly in checked the connection first and hey it works...customer happy..thanks to all who replied
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