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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 28, 2014
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Open Help Requests for GM
Help Request Answers
2007 Buick Lucerne CX 3.8L Starting VIN: 1G4HP57227
no crank, no start, No communication with EBCM, Radio, Suspension, Seat module, Park assist, PCM, No gauges No brake lights. Lights that are on cluster abs, traction control, engine, all codes show communication faults tried resetting computer with battery dis...
1991 Chevrolet G30 Hi-Cube 5.7L steering shaft VIN: 2GBHG31K1M
good morning all the vehicle came back 1 week ago this past tuesday complaining of hard to steer and having to physically return steering wheel to center after turn verified complaint, since I recently replaced gearbox I raised ft wheels off rack(alignment rac...
2002 Oldsmobile Bravada 4.2L No Start, Misfire VIN: 1GHDT13SX2
Good day, Always works out the headache cars are a friends vehicle. Truck was towed in no start, found pcm fuse blown. replaced fuse and starts but has a hard misfire. Pulled wiring diagram from Mitchell, circuit feeds 12v to all ignition coils and injectors ...

Fixes & Summaries for GM
Fix/Summary Answers
2008 Buick Enclave CXL 3.6L Surge, Misfire, VIN: 5GAEV23768
First, I thank you all for your replies. Thanks especially to Robert, for keying me into TC slip. And Kent for sending me to TF. Paul - you sent that one HOME! Tim from WI - good info, thanks! Thanks also to Keith, Robert, Kirt, Jake, Doug, and Tim! There ...
2007 Cadillac Escalade 6.2L No Start, Stall VIN: 1GYFK63807
Wanted to update seems I have to close...Repalced Cam Phasers and sensor or magnet drove 30 miles had no problems or codes released to customer came back 2 days later with CMP code p0010 checked everything again decided to replace cmp sensor and Cam sensor wh...
2006 Chevrolet Corvette 6.0L Battery VIN: 1G1YY36U96
I do appreciate all the help and suggestions. Some of you have talked about checking millivolts acrooss fuses to check for parasitoic draws. I've been checking that way for quite some time. That is a great way to isolate draws. In this case every cuirct o...
2010 Chevrolet Malibu LT 2.4L Battery Light VIN: 1G1ZD5EB2A
I scoped the grey wire at the alternator connector and had a really nice square wave signal. When testing the grey wire again from the back side of the PCM connector, I had not square wave. Upon opening the harness up for inspection, I found a damaged portion ...
1997 GMC C3500 Sierra SL 5.7L dist VIN: 1GDHC33R1V
thanks .but I had done all those steps before coming here to look for help.looks like we are all on the same page.
2001 Pontiac Grand Prix GTP 3.8L high idle VIN: 1G2WR52141
okay so after relooking at all my data again. and going back over every inch of the system. i started checking the wiring on the car. come to find out, that when the kid was putting on the cold air kit, he moved the wiring around just a bit. not a big deal un... Trouble codes: P0420, P0113, P0502, P0717, B1004.
2002 Pontiac Grand Prix SE 3.1L No Start VIN: 1G2WK52J62
Vehicle fixed. Repair 1. Fixed broken 12v feed wire from PCM to 24x sensor. Wire was broken about 20 inches from PCM connector. Now when running 24x rpms vary with throttle. Still shows a fixed RPM with key on (scanned a similar vehicle yesterday that also sho...
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