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Prev Professional Automotive Repair Technical Discussions for January 31, 2012
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Open Help Requests for GM
Help Request Answers
2002 Cadillac Eldorado ETC 4.6L body VIN: 1G6EC12972
car wont crank check battery condition ok check grounds, scan launch says no relation scaner to car recomends to reload program and contact dealer check with snapon scanner found 2 codes u1255 and 1126 code 1255 refars to no comunication between class 2 module...
1994 Chevrolet Corvette 5.7L Sys message flashes VIN: 1G1YY22P1R
Hi Corvette Techs The complaint is battery is dead after 2-3 weeks. The a/c control panel light above the button that is the mode its in will flash for few minutes then stays lit in what ever mode you have it in. Some times the blower will just come on when i... Trouble codes: C081, H81 (Module 1), H72 (Module 9), ERR
1995 Chevrolet C1500 Cheyenne 5.7L battery VIN: 1GCEC19K9S
This vehicles battery will go dead overnight if left hooked up! Previous owner had a battery disconnect solenoid installed, which causes the computer to loose it's memory. I've looked for a draw large enough to run the battery down but it is only drawing 128 M...
2006 Chevrolet Impala LT 3.5L Ability to Defrost VIN: 2G1WT58K46
Thanks in advance for your help. Customer complains that when it is cold out. (Below 35 deg F) The windows fog so badly that moisture runs down the glass. Especially the rear door windows and rear deck glass. We installed tech bulletin #08-08-64-014 kit which ...
1997 GMC Jimmy SL 4.3L engine VIN: 1GKDT13W9V
Iam about to replace an engine in 1997 gmc jimmy with an engine from a 1998 chevy pick up im just wondering how many problems I may have. I can see the jimmy has a remote mounted oil filter with oil lines the replacement engine has the regular oil filter the t...
2003 GMC Sierra 1500 SLE 4.8L Hesitation, MIL Lamp on VIN: 1GTEK14V03
When it happens the truck will not accelerate and the power loss light comes on , the dealer says to replace the gas pedal position sensor and the throttle body together ... this to me is like throwing parts at it , any suggestions Trouble codes: P516
1985 Pontiac Fiero SE 2.8L engine VIN: 1G2PF3796F
Need help on this 85 fiero.Had it towed into my shop with a blown motor. The owner wanted me to switch it out for him. Well I later found out the motor in the car is a 2.8l and the motor he bought to replace it with is a 3.4l out of a camaro.He then tells me h...

Fixes & Summaries for GM
Fix/Summary Answers
2004 Chevrolet Tahoe LS 5.3L No Start VIN: 1GNEC13ZX4
The customer declined the repairs. After resting the FCP the light would be out for 10 minutes and seemed to start ok once the code rest the problem of starting would reoccur. This leads me back to the FCP. Thanks for all the input, IATN is a great resource. ... Trouble codes: P0178 (FCP sensor value low).
2005 Chevrolet Trailblazer LS 4.2L blower VIN: 1GNET16S35
it turned out the ignition switch was the culprit, but it was very intermittent. Thanks to all who replied.
2006 Chevrolet Silverado 3500 LS 6.6L left signal VIN: 1GBJK39D86
Thanks for all of the replies.I went back to the socket that I installed and found that I had the brown wire on the black and vice versa.Next time I will make sure I have more light to see by.
1994 GMC K2500 Suburban SLE 7.4L power steering VIN: 1GKGK26N6R
Average aftermarket pump life was 2 days before total loss of pressure. Thanks for the delco phone number. Delco only has reman pumps for this suburban. I had to use the old reservoir because the delco one was different. It has been gone for a week now with no...
2002 GMC Yukon XL 2500 SLT 8.1L Cuts out VIN: 3GKGK26G02
Ok, after what seems forever, this thing is fixed. The customer informed us that when this all began to happen, he also noticed a drop in fuel economy and, ta dah, power!! Replaced the crank sensor, lots of pb blaster, and of course broke it pulling it o...
2003 GMC Envoy XL SLE 4.2L Cuts out VIN: 1GKET16S43
Does not make any sense. I cleaned, superficially the throttle body. And now is working. Thank everybody , hope that it will not come back.
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