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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 11, 2012
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Open Help Requests for GM
Help Request Answers
1997 Buick Skylark Limited 2.4L Poor Idle Quality, Cuts out, Stall VIN: 1G4NJ52T3V
when i run the car for 20 minutes and let it sit for 45 minutes i can start the vehicle and within a few second it will stall out. If I restart it takes a long crank before it start again and it will run ok but just a little rough, I tested for high oil pressu...
1951 Cadillac Series 62 DeVille 5.4L Wiring VIN: 000FW46458
Two problems guys. I need a proper wiring diagram for the firewall so I can repair the harness which has been substantially damaged. The ignition switch and the underdash wiring is substanially hacked. I only have basic drawings of the typical systems old cars...
1992 Chevrolet S10 4.3L Stall VIN: 1GCCS19Z3N
I have tried to determine if we are losing ignition or fuel. Performed voltage drops on all grounds to the computer all about .1v. Checked ignition feed to computer while problem is occurring and keeps 13.5v. Check all sensors 5v reference while problem is occ...
2003 Chevrolet Silverado 2500 HD 6.6L engine
thanks for all the responses in advance. I want to get some input on removing a seized engine in this truck. the engine will not turn, making it impossible to disconnect the torque converter. the engine is stuck due to coolant sitting in the cylinders for seve...
2003 Chevrolet Avalanche 1500 North Face 5.3L Differential VIN: 3GNEK13T53
this avalanche came in with customer complant of noise while driving. Upon road test noise sounded like a roar from left front. Noise goes away when you take load off left front wheel as you weave from left to right down road. So left front wheel bearing was r...
2009 GMC Sierra 1500 SLE 5.3L Not Sure VIN: 1GTEK29089
I have this truck at our shop that is verry interminit and am looking for a starting point. Coustomer is saying truck will stall or almost stall at a stop and when it does check engine light and reduced power light will come on. My codes are p0443,p3401, p3425...
2007 Pontiac Solstice 2.4L Electronic VIN: 1G2MB35B27
P2637 Engine Torque signal malfunction. If you read the diagnostic procedure, it basically has a few steps ultimately leading to a TCM computer. Well, I put a brand new TCM computer from GM in it and it still messes up. I have to drive it for a few days, but i...
2000 Saturn LS2 3.0L Bcm VIN: 1G8JW52R9Y
BCM Saturn programming tips. I have a 2000 Saturn LS2 I need to replace the BCM. Question? Should i just take it to Chevy and pay them $125 to flash my new BCM, or can I do it myself. I do have a Tech2 and i see you can buy software on GM's site for $55. Do I ...

Fixes & Summaries for GM
Fix/Summary Answers
1998 Chevrolet K1500 Cheyenne 5.7L down shifting VIN: 2GCEK19R5W
customer didnt want to fix at this time Thanks to all who helped fuel preesure was at about 55 under hard accel
1999 Chevrolet K1500 LS 5.7L MIL Lamp on VIN: 1GCEK19R9X
Customer ddid not want to spend any more money on this problem. my suggestion was go back to first shop that took close to a grand from them and see if they want to spend there time and fix it Trouble codes: 1404 (Egr).
2000 Chevrolet Impala 3.4L Battery drain
Wow, lots of information given, i want to thank all who have replied. This was an odd one to say the least and as i talked with the customer more and more i got more info. Customer said the security light would go on one in a while and once in a while the key ...
2000 Chevrolet Express 3500 LS 5.7L abs module VIN: 1GBJG31RXY
well that one is down the road no thanks to otc genisys problem was that the genisys would not talk to ebcm on that van but had no issues with my own 03 z-71 cost me a whole day [problem was c0221,c0225 squirrel chewed the front sensor wires]i did find the pas...
2001 Chevrolet Silverado 1500 HD LS 6.0L ecbm VIN: 1GCGK13U51
We determined that the ecbm was faulty due to all the replies. Thanks so muuucch! This is a wonderful program! David [...]
2008 Chevrolet Corvette 6.2L horn in-op VIN: 1G1YY25W98
horn worked all day yesterday sat all night this am no horn used tech 2 to active horn did not work check all circuits went to bcm found lock on one connecter unlocked resecured and all is well thanks for the help.
2005 GMC Canyon Z71 SL 2.8L No Start, No crank VIN: 1GTDT19865
Thank you for all of the great responses. I had to replace the ignition housing/ignition switch. It came from the dealer as a unit. The ignition lock cylinder was reused. After installation the security light was flashing so I had to relearn the passkey. It ...
2006 Pontiac Grand Prix 3.8L tempature indication VIN: 2G2WP55296
Thanks to everyone who responded. The fix for this one was as I suspected. We took the cluster to another instrument shop, not the original one, and they checked and replaced the tempature gauge and the vehicle performed fine. No over heating, never traveled a...
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