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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 9, 2011
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Open Help Requests for GM
Help Request Answers
1993 Cadillac DeVille 4.9L security VIN: 1G6CD53B6P
car came in for no-start found no 12v to starter solonoid also i have no security light on dash and bulb is ok I ground the blk/yel wire to start inhibit relay and car will crank run for 1 sec. then die im leaning towards antitheft module,i would love just to ...
2001 Chevrolet S10 2.2L No Start VIN: 1GCC514571
this vehicle came in with spark plugs fuel fouled.change plug at no avail.compression appears ok.fuel pump is supplying 60psi while cranking.computer has two codes po172/po631 upon checking it out all inputs look ok except cal. load% it is 99% this sounds wron... Trouble codes: P0172, P0631
2008 Chevrolet Silverado 3500 HD LT 6.0L 4x4 VIN: 1GBJK39K88
hello group. All the 4X4s (Plows) are in the shop during our winter this year. This is a question for the Chev Electronics Guys When this truck (and others like it) are locked in 4X4 the only indicator is a small dot on the electronic control. (you need a magn...
1995 GMC K2500 Sierra SLE 6.5L Poor Idle Quality, Stall, MIL Lamp on, Extended Crank VIN: 1GKGK26F2S
This vehicle was towed over from a fleet shop that had been working on it for a few months. The fleet operator's complaint is that the vehicle cranks for a long time before it starts, runs horrible, blows black smoke, and has a serious lack of power. The fleet... Trouble codes: 18 (Pump Cam Reference Pulse Error), 35 (Injection Pulse Width Error Response Time Short)
2006 GMC Sierra 3500 WT 6.6L MIL Lamp on VIN: 1GDHK39D06
To the duramax gurus, this truck for the past two to three winters will set this code after a cold start while driving in below zero temps. By the time I get the truck, cause of code is long gone, truck runs fine, passes fuel pressure and suction side tests. R... Trouble codes: P0087 (Fuel pressure too low)
2006 GMC Sierra 3500 SLT 6.6L abs light VIN: 1GTJK33D96
hi guy, i have a real good one, this truck been coming into the shop for 3 to 4 year for this problem. will set one code in history a c0055 rear speed sensor,but if you drive 500 to 600 feet the light will go off and will not come back until temp go under 30 d...
2008 GMC Acadia SLT 3.6L instrument cluster VIN: 1GKEV33758
My personal vehicle well the boss's my wifes, I had the remote start install a couple of weeks ago and the next morning my wife said the instrument cluster was dark and the radio didn't work. Brings to shop after work' everything works i said we'll see want ha...
2002 Pontiac Grand Prix GT 3.8L pump VIN: 1G2WP12K52
Hey, I have a car with a power sterring pump whine that is killing me. Car came in my shop with a bad leak, checked it, found the rack leaking and the high preasure hose also. The pump was very loud. We replaced the pump , rack, and hose. After repairs the whi...
2003 Saturn Ion-1 2.2L Stall, MIL Lamp on VIN: 1G8AW12F13
Just looking for info. on this Saturn if anyone has had a similar issue. Customer complaints are stall at idle, idle sticks high, car will not move in drive sometimes, all intermittent. P0106 was stored during previous inspection a couple of months ago with no... Trouble codes: P0106 (MAP sensor fault), P1599 (Engine stall)

Fixes & Summaries for GM
Fix/Summary Answers
1988 Buick Electra Park Avenue 3.8L No Start, MIL Lamp on, intermitting VIN: 1G4CW51C1J
this is not a fix..it is another update.. replaced ECM and crank sensor & ignition module,disconnected all sensor wiring and pulled out of clamshell & inspected,all looks like new wiring, no corrosion or breaks,performed a wiggle test with it running,passed,a... Trouble codes: 13 (O2 sensor circuit shorted), 14 (shorted coolant sensor).
1998 Chevrolet Cavalier 2.2L Cuts out, Stall, MIL Lamp on VIN: 3G1JF12T9W
well first i would like to thank everyone who read my post. I recieved some helpful replies but i think i may have not properly explained what was going on. First, I have no (0) rpm signal on tech 2 while cranking (coils and housing have nothing to do with tha... Trouble codes: P0335 (Ckp sensor a circuit problem), P0341 (Cmp sensor circuit out of range).
1999 Chevrolet K1500 Suburban 5.7L Transfer case VIN: 1GNFK16R3X
Well thanks to everyone that replied! We verified that the differentials were the same as well as the tire diameters. We have ordered a GM rebuilt(again) and this comes with a shift motor. He says (the owner) that he dosent abuse the truck in 4wd and when in 2...
2004 Chevrolet Silverado 1500 4.8L Front Dirrerential VIN: 1GCEK14V34
thanks to all that replied to my post i couldnt experance the problem again but i removed the switch on top of transfer case and oil was seepimg through conection replaced switch customer is going to drive and let me know
2006 Chevrolet Malibu LS 2.2L No Start, Stall VIN: 1GZT51F86F
Thanks for all the input, I put an ignition switch in this vehicle per the customers request. Vehicle made it about 3 days & did it again. The customer is going to get rid of the vehicle. Thanks again for all the response.
2006 Chevrolet Trailblazer EXT LT 4.2L starts no run VIN: 1GNES16S66
I would like to thank all that sent information , after checking it over agian the suv started . and ran for 10 min, and stalled, but i checked the wiring coming from the ignition switch and found i only had 11volts and when starting it dropped to 8 volts i ap...
2002 GMC Envoy SLE 4.2L 4wheel drive VIN: 1GKDT13S02
I replaced 4+4 control module & reprogam thank you for all your help
2004 GMC Envoy SLE 4.2L Air suspension VIN: 1GKDT13S44
This vehicle is fixed, and my lesson learned is that air strut leaks can be deceptively intermittent. Yes, all it needed was air struts. When I never found any leaks originally, I took the compressor out of the equation by installing a schrader valve at the ...
1998 Oldsmobile Cutlass 3.1L No Start VIN: 1G3NG52M7W
Found two pushrods bent which means I put them in the wrong order. I replaced the push rods and two valves cars runs now.
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