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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 7, 2014
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Open Help Requests for GM
Help Request Answers
1998 Chevrolet K3500 Cheyenne 7.4L Brake pull VIN: 1GCHK33J3W
This truck comes in for a severe pull to the right when braking. Road tested and verified the concern, found a 50 degree temp difference from RF to LF (left being cooler. Not giving a tremendous amount of thought into this, we put good Delco calipers, pads, AN...
2000 Chevrolet Tahoe LT 5.3L Scanner won't read VIN: 1GNEK13T9Y
This truck was brought in for an emissions test. The analyzer will not read the data stream. It uses the generic obdii data. I can hook up our modis ultra and it reads just fine. The cel is off and there are no codes. My pocket scanner will not work also as it...
2002 Chevrolet Silverado 2500 HD 6.6L Poor Fuel Economy, MIL Lamp on VIN: 1GCHC23172
trying to find cause of a MIL on.Code p1093 stting which is set during power enrichment. I have a genysis scan tool and recorded various data. Direct hit tells me to check vacumn at shredder valve and thus I did, there is 6 inches of vacumn inpark wot. 10 inch... Trouble codes: P1093
2002 Chevrolet Astro LS 4.3L Door Locks VIN: 1GNEL19X62
I got this truck with door locks issue, the locks works fine, the problem is while you driving between 30-40mph the locks start clicking & locks & unlock on its own,if you let go off the gas pedal it goes away, above 45mph it wont do it. scan it with tech2 all...
2005 Chevrolet Silverado 1500 4.3L Stall VIN: 1GCEC19X35
I have tested all sensors for 5 vt and signal issues. I found a broken wire and the wrong pig tail for the ECT and replaced them. I have done the wiggle test. reflashed the pcm and theft. at this time I checked volt drops at the pcm on power and grounds. back ...
2006 GMC Envoy XL SLT 4.2L Unknown VIN: 1GKES16S16
Hi guys need some help i have this gmc envoy 2006 with a code c0455 steering wheel position malfunction first i flash the ebcm with the latest soft wear same code replace the steering angle sensor same code i check the wiring i have power ground 5 volts is the...
2007 GMC Sierra 2500 HD Classic SLT 6.6L communications VIN: 1GTHK23D27
hey all, have a 2007 sierra 2500hd dmax classic body style, customer complaint of service 4x4, service brake system, speedometer intermittently quits, abs and red brake warning lamps lit, and will stick in 4x4 low range with the front axle not being engaged. i...
2003 Pontiac Grand Prix GT 3.8L MIL Lamp on VIN: 1G2WP52K23
replaced gasket's for visible leak replaced intake because of crack and coolant leak now have high fuel trim's s/t pos.19-20, l/t at 26 when removed upper plenum found pcv hose looked odd memory has failed me should curled end be up in pcv area or should strai... Trouble codes: P0171, P0174
2005 Saturn Vue 2.2L Communication
Hello all. Have this Vue with the 4speed 4t45e transmission not VTi. Have loss of communication with tcm/bcm. Circuit 2500 tan white stripe wire showing 14.9 volts. Circuit 2501 tan wire showing 0.1 volts. GMSPO states voltage should be less then 3.5 volts on ...

Fixes & Summaries for GM
Fix/Summary Answers
2007 GMC Envoy SLE 4.2L Poor Idle Quality VIN: 1GKDT13S77
started w/o 2 sensor up stream and got better but purge soll. came up as next code.cleared it and lasted two days and went back to harsh idle when cold,replaced gas cap as a precaution but alas... replaced purge valve soll. and it stayed good this time around... Trouble codes: P1400.
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