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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 26, 2014
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Open Help Requests for GM
Help Request Answers
2008 Buick Enclave CXL 3.6L Battery VIN: 5GAER23738
Original battery replaced 1/2013, replaced battery (warranty) again 2/2014. Now vehicle has a short to ground in the electrical system. Battery shows about 5 volts disconnected, 0 volts connected. disconnected battery & hooked jump box just to cables (to see i...
1972 Chevrolet C10 Pickup 5.7L Cuts out, Misfire
Howdy this is my first request for help. Customer brings a 1972 c10 with a 1996 5.7 vortex and t350 trans. motor has a Holley 4 bbl carb. and a hei dist. with vacuum and mechanical advance, in with a list of work needed. problem is on acceleration under load o...
1997 GMC C2500 Sierra SL 5.7L MIL Lamp on VIN: 1GTGC24R9V
Hello. This Vehicle has a GM Alternative Fuel system on it (not currently in use, also never going to be used again as the tank(s) have been deleted). The concern is I have no wiring diagrams for this system... The CES light is on with no codes in the "Gas" co...
2004 GMC Sierra 1500 Denali 6.0L Rear wheel steering VIN: 2GTFK69UX4
I have a gmc with a quadra steering issue. The rear wheels are turned to the right and wont me. This is the first Quadra steer i have worked on. Starting off I had no communication with the rear wheel steering module. After checking powers and grounds to the m...
2006 Pontiac Pursuit GT 2.4L TCM Communication VIN: 1G2AN15B16
Hello to all. For some reason my Shopkey database isn't very helpful this time around. Intermittently the Speedometer drops to zero and the trans shifts erratically. I have noticed "Loss of communication with TCM" code in the Engine computer U0101. So here I a...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Buick Century Custom 3.1L Starter VIN: 2G4WS52M0X
Thanks for all that replied. I am sorry for the lack of info on this but it came to me before I had a conference planned to go to at the end of last the week. I repaired all the wires in the harness by the battery that had gone to the ecm. I talked to the cust...
2004 Cadillac SRX 3.6L Poor Idle Quality, won't rev VIN: 1GYDE63744
I had alittle time went by to help my friend with Cadillac it was a wiring problem.seem that the wiring on the replacement connector isn't like most connectors instead of the 456-123 numbering of the pins 246 135 is the way GM choose to number the -new connect... Trouble codes: P2176 (Min. idle not learned), P0122 (Throttle Position TP Sensor 1 Circuit Low Voltage), P0222 (Throttle Position TP Sensor 2 Circuit Low Voltage).
2002 Chevrolet Silverado 3500 LS 6.6L Fuel gauge VIN: 1GBJC34142
Fuel gauge reading problem is fixed. Thanks to Seth and Matthew and everybody for there help. I make the problem myself by not checking out the dual fuel tank system. When a poster said rear tank may be empty. I looked at rear tank and saw it also had a fue...
2007 Chevrolet Tahoe LTZ 5.3L driver's airbag VIN: 1GNFK13077
First thanks to all responses. Great suggestion on inserting 2 ohm resistors. This now gave same codes 0012 and 0013 but instead of saying "open circuit" now says "below threshold" or low resistance". Installed an airbag from a 05 Yukon (connectors identica...
2008 Chevrolet Express 2500 4.8L No Start VIN: 1GCGG25C48
i pulled the fuse box appart only to find nothing wrong. I put everything back together, snaked wires out from above tank and plugged them in to old pump. I then put power to pump via the fuel pump fuse. i started wiggling wire harnesses near tank and the pump...
2006 GMC Sierra 2500 HD SLT 6.0L fuel gauge VIN: 1GTHK23U76
code did not return, had it fixed, was just low enough on gas to read empty. added 5 gal. now at 1/4 tank.
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