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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 5, 2010
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Open Help Requests for GM
Help Request Answers
1997 Cadillac Seville SLS 4.6L theft lock VIN: 1G6KS5Y4VU
I just changed the engine in my 1997 Seville and now it won't start. The message center says that there is a "Theft lock problem" and "Car may not start". I know that the fuel system is disabled (No power to relay) which the theft lock does. How do I reset ...
2005 Cadillac STS 4.6L MIL Lamp on VIN: 1G6DC67A75
need help i cant find whats keeping my fuel trim up mostly on bank 2 at idle its around +15 bank 1 +9 at idle tryed massair flow smoked intake put intake gaskets in fuel trims climb on highway on decel also cleaned injectors found vaccum hose on back of intake... Trouble codes: P0171, P0174
2005 Cadillac CTS 3.6L unknown VIN: 1G6DP56795
between 45 55 miles per hr just after the car shifts into overdrive, with slight acceleration there is a vibration/drone coming from the drivetrain. it feels like a bad u joint. I removed the driveshaft and replaced it with a used one [I didnt feel anything wr...
1991 Chevrolet Lumina 3.1L Surge, Cuts out VIN: 2G1WL54T9M
Car came to me with intermittant driveability problem. it will cut out on acceleration, almost as if it is a rpm limiter kicking in at low rpm. If you start up an incline it will stumble and loose power.It will idle fine and when cruising it will run out fine ...
2000 Chevrolet C3500 6.5L No Start VIN: 1GCHC33F1Y
hello iatn i have an issue with a Chevy 3500 diesel truck. When you try to start the truck it does nothing it wont even try to start ,but if you use the wd-40 trick it will run. Ive looked at the modis and it is showing that the injector pulse is 279.0ms, the ...
2001 Chevrolet Silverado 2500 HD LT 6.0L Door VIN: 1GCHK29U91
Trying to find out how to get a door off of this so that the pins can be replaced? This is a new setup to me and I would like to know how to replace these door pins with the new updated ones
2005 Chevrolet Equinox LS 3.4L front end VIN: 2CNDL13F65
while test driving this vehicle if you accelerate at a steady speed there is no issues. if you floor it the vehicle feels like the whole front end is moving. it isn't just in the wheel it appears as if the cradle had bad bushings and was shifting back and fort...
2003 GMC C4500 Topkick C4C042 6.6L Fuel system
Hey guys looking for a little insight here. This truck came in today low oil pressure running very rough. Blowing oil out the pcv tube. Found oil reading about a foot up the dipstick. Drained the oil and found about 2 gallons of diesel fuel in the crankcase. R...
2002 Oldsmobile Bravada 4.2L temp control VIN: 1GHDT13S02
This Bravada has auto temp. control with dual zone heating, heat works fine & temp is adjustable in DEF & FLOOR settings, however when in vent position there is no heat output unless 90 degrees (max temp) is selected. Found a post in archives for what appears ...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac DeVille 4.6L Instrument Cluster VIN: 1G6KD54Y1V
Wanted to make sure all is ok. Found out there is only one GM licensed Cad repair, it is SPECMO in Michigan. The place I was using evidently didn't have the right parts, test equipment. It has been over two weeks now, the client came in to let me know all was ...
2000 Cadillac Seville STS 4.6L Vehicle Speed Sensor VIN: 1G6KY5498Y
No rub-throughs in the harness, the connector is tight and clean. The signal never dropped out for us, and the customer only had an issue one time. I have suggested the customer drive the vehicle until either the problem returns or symptoms get worse. Thanks t...
1979 Chevrolet Corvette 5.7L Starting VIN: 1Z8749S452
Thanks for everyones help! This was my first time posting and WOW was I impressed with all the responses! The car ended up sitting for a while until the customer decided what they wanted to do..Meanwhile, I started from scratch..I took both the battery and s...
1992 Chevrolet K1500 Silverado 5.7L Hesitation, Cuts out, Stall VIN: 1GTEK14H9N
Thanks to all who responded despite the lack of information that I supplied. It was the distubutor. Looking at the number of responses that named the Dist., we took a chance and replaced the distubutor. Thanks again to all
1999 Chevrolet Venture 3.4L MIL Lamp on VIN: 2G1WF55K35
Wow, just learned something! Thanks to everyone who said to remove the throttle body and look for carbon. Pulled the TB off and the port going to the EGR was bulging with carbon. Had to chisel it out to clear the pathway, it was completely blocked. Cleared... Trouble codes: P0401 (EGR insuficent flow).
2003 Chevrolet Silverado 2500 HD 6.6L Extended crank VIN: 1GCHK23113
Thank you for all the suggestions. As I said in original post the fuel system passed all the the test. The only test I did not due was the return rate test. Personal opinion that test is as much work as just pulling the injectors. Long story short I pulled all...
2006 GMC Sierra 2500 HD SLE 6.6L Glow Plugs VIN: 1GTHK23D06
thanks to everybody for their replies,i was able to get all 8 glow plugs replaced,and only had 2 break in the head,1 plug was dug out with an easy out,2nd plug had to be drilled out almost completely.put anti-seize on new plugs,i sure wouldn't want to do that ...
2005 Saturn Ion-1 2.2L Clutch Hydralic System VIN: 1G8AF52F75
Well after some research, I BELIEVE this valve is a pulsation damper. Why an engineer would install such a device is new to me. I left the old one in and the car is gone with zero reported problems. Sorry about the long reply but I was gone hunting for two ...
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