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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 17, 2012
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Open Help Requests for GM
Help Request Answers
2007 Cadillac STS 3.6L windows, mirror switch, door lock switch. trunk re VIN: 1G6DW67787
I'm hoping someone has seen this before. Car came in with drivers door completly dead. No power window operation. no trunk release operation, and no door lock switch operation. Occasionaly the door comes alive but not long enough to test. All other windows wor...
1963 Chevrolet Corvair Monza 2.4L Poor Idle Quality, Stall VIN: 30927W1195
I purchased this car which was stored in a warehouse since 1981 or earlier. It is in fantastic condition body and interior. I had the fuel tank out and professionally cleaned. Any rubber lines(2) were replaced. I RR`d the carbs and found them very clean inside...
2006 Chevrolet Silverado 1500 LT 4.8L #1 Fan Relay VIN: 2GCEK13V46
Ok this is complicated. The Truck came in with the complaint of the truck not starting because the battery was draining beacuse the cooling fan was staying on and the truck was stalling. we found moisture and corsion on the pcm. Replaced the pcm and cleaned th...
2008 Chevrolet Equinox LT 3.4L noise VIN: 2CNDL43F38
Customer hears creaking noise over bumps test road with and Yes it does cannot get to make noise on hoist sounded like struts so we replaced both and mounts seems worse thanks for any/all help
2009 Chevrolet Express 3500 6.6L Brake Fluid VIN: 1GBKG31669
Gm techs i am wondering if anyone has seen brake fluid contamination through the hydroboost system. We have a fleet of ambulances and i have two here that both have brake fluid very obviously contaminated with power steering fluid. I dont see how the two can m...
2000 GMC Sierra 1500 SL 4.3L motor VIN: 1GTEC14W0Y
truck ran great it was parked for four days no start now cap rotor wires two months old fuel pressure on rail is good also have good spark while checking coil with key on im hearing a ticking or clicking noise inside intake injectors maybe fuel pressure regula...
2001 GMC Sierra 1500 SL 4.3L engine runs very rough replaced intake gaskets duo VIN: 1GTEC14W61
after all that truck will not run properly rough idle exhaust manifold glowinfg red hot started on passenger side cut cats off then red hot moved to drivers side all started with radiator jug full of black slimey sludge due to leakage of oil into cooling syste...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Buick Park Avenue 3.8L fluid leak VIN: 1G4CW52K0Y
The overwhelming number of responses was to replace the channel plate gasket. I got the parts to do the job but got busy with customer paying jobs and put this one on the back burner. I will do the job as soon as I get the opportunity. Thanks for the help a...
1996 Cadillac Fleetwood 5.7L throttle VIN: 1G6DW52P6T
Thanks to everyone who responded. I did like suggested and turned the traction control off and drove the car. No more problem. After diagnose and much time the A.S.R. unit was found defective. Way too much resistance. But here is the kicker, the A.S.R. unit is...
1997 Chevrolet Blazer 4.3L 4x4 VIN: 1GNCT18W5V
Thanks for the info.the vacuum switch on transfer case was stuck in.But would not work,also had vacuum line leak up at intake manifold for switch valve
1998 Chevrolet Blazer 4.3L 3rd gear VIN: 1GNDT13W9W
Just about everyone said that the 3/4 clutches were bad. I replaced the transmission and the transmission now shifts into 3rd. Tore down the transmission(just for fun) and there was nothing left of the clutches. The entire transmission was extremely filthy. Af...
2008 Chevrolet Cobalt LT 2.2L cruise inop
sorry to get back to everyone late, turns out the third brake light was unplugged, one of the 3 bulbs was out. not sure why it was unplugged... replaced bulb replugged in, voltage on the wire to the tcm goes away brake pedal sensor working as normal on scanner...
2002 Saturn Vue 3.0L Drive-axles VIN: 5GZCZ63B72
OK, this one is now fixed. Customer has been driving it for 4 days with no problems. We went back to the beginning. Even though I couldn't find a problem with the shoes and drums, I replaced them with a different brand. No more locked up wheels. To the e...
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