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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 19, 2010
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Open Help Requests for GM
Help Request Answers
2000 Buick Park Avenue 3.8L engine VIN: 11G4CW54K8
Thanks in advance for help. This engine is putting engine oil into the cooling system,into the resevoir.The coolant in radiator smells like engine oil and little black dots of oil is seen with cap off. It is not loosing a drop of pressure when tested, and pres...
2006 Buick Terraza CXL 3.5L Fluid aerated VIN: 5GADV33L26
This van came to us after being serviced in another shop. According to the customer, this other shop replaced the power steering pump because it was leaking. Upon inspection, found fluid under pump, on block and down front cover, dripping off of the front lowe...
2000 Cadillac Catera 3.0L Mechanical VIN: WO6VR54R0Y
this catera is leaking oil bad and when it gets to temp at idle the oil light comes on but it is full of oil at the time i read that the oil sensor on top of the motor leaks oil and it is a pain to do can any body helop me in this i want to know is it worth my...
2004 Cadillac XLR 4.6L Key Fobs VIN: 1G6YV34A54
Used car lot car. Came in with NO FOBS DETECTED MESSAGE but started and ran. Could not program fobs with all 4 methods. Suspected bad RCDLR module. Car lot took to dealer for second opinion, they said needs RCDLR. Installed RCDLR and cannot operate start/off b...
1984 Chevrolet Corvette 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy VIN: 1G1AY0786E
ok so here is fun one i have a charcoal canister filling up with fuel from the evap vent line going back to the tank. now after running the vechicle for about 15 min gas will start to spew out of the liquid vapor seporator on the tank (not the one on the modul...
1995 Chevrolet Tahoe LT 5.7L stereo/blower VIN: 1GNEK13K2S
I am having trouble with a battery drain, as whell no blower opp. Found battery drain, this is orange wire to back of radio, cut wire stops drain. Should this wire only be hot with key on, if so what color wire keeps memory to radio. Far as blower opp. the blo...
2004 Chevrolet Malibu LS 3.5L air bag light VIN: 1G1ZT54894
We have a code B0086 right side impact sensor. Removed the door panel and found no sensor and no wiring.
2007 Chevrolet Silverado 2500 HD LTZ 6.0L heated seats VIN: 1GCHK23U9F
fleet customers drivers complaint is that the seat heater turn on by themselfs. driver disconnected seat connector causing several codes in seat memory module. no codes in drivers door module. any body been down this road? saw no tsb for this condition. can co...
2008 Chevrolet Cobalt LT 2.2L pistons and rings VIN: 1G1AL15F58
We have this car in our shop with a strange engine failure that I suspect may be caused by synthetic oil and I was just looking for some opinions as I have had limited experience with synthetic oil.The car came in for a mild but not normal engine knock all the...
1997 GMC C1500 Sierra SLT 5.7L Fuel Pump VIN: 1GTEK19R0V
Fuel pump wires melting inside tank and at fuse block,was wondering if maybe the fuel pod is drawing too much amperage
2005 GMC Envoy XUV SLT 5.3L out side door handle
this suv has electric outside touch pad to open the tailgate-actually 2 touch pads[1 to open down and 1 to open sideways]neither works.also has a rear retrackable roof that doesn't work.owner states that they both worked before the regulator broke.there is a e...
2000 Pontiac Montana 3.4L coolant leak VIN: 1GMDX03E6Y
Hi! I got this vehicle for a coolant leak checked the intake manifold and saw traces of coolant. There is also a TSB on this so we ordered the one from the dealer with new bolts. After replacing the intake gasket now I could see leaks coming from the passenger...
1998 Saturn SW2 1.9L first gear VIN: 1G8ZJ8276W
Customer states she is unable to shift into first gear when vehicle is cold. She starts off in second gear and when the car warms up everything is fine. We have had the vehicle for a week and have not experienced the customer's problem. Vehicle has shifted nor...

Fixes & Summaries for GM
Fix/Summary Answers
1990 Buick LeSabre 3.8L Poor Idle Quality VIN: 1G4HR54C4L
thanks for all the help the iac counts were 0. so i tested further . and then replaced the iac motor. this fixed the problem. sorry it took so long to post fix.takes [...] for me to get parts here . thanks to allthe techs for the great help and your time ....
1998 Chevrolet C1500 Silverado 5.7L No Start VIN: 1GTEC19R7W
O.K. so we know I had no spark, fuel pump and or relay, no injector pulse previously to installing A VCM from N.P.C. which I have never had a problem with. After installing VCM and vehicle would not and an all nighter of thinking at home decided to go back to ...
2003 Chevrolet Suburban 1500 LT 5.3L compressor VIN: 3GNFK16Z03
thank you for your help. There was a code i had to clear and also I mentioned the idle was really low. I cleaned the throttle plate and iac. After that the idle raised to 700 and the ac worked fine. Im guessing taht when the idle was below 500 the compress...
2005 GMC Envoy XUV SLT 4.2L rear door/window VIN: 5616065300
well after talking to the owner,she says well the motor was running all the time so we pulled the fuse out.thanks for telling me that after 2 days of trying to figure it out.
2001 Oldsmobile Aurora 4.0L Misfire VIN: 1G3GS64C31
After all the replies to the intake system we smoked the engine and found the intake was leaking out of the gasket replaced intake gasket and problem was resolved Trouble codes: P0171, P0174.
1990 Pontiac Grand Prix LE 3.1L No Start, Poor Idle Quality, Stall
So I put a used ECM in this car and "knock on [...]" been running fine ever since. A very big thankyou to everone who responded. Its one thing to charge the customer for hours of diagnostic time to find a problem but when you can fix it quickly with a little he...
2001 Pontiac Grand Am SE 3.4L cooling system VIN: 1G2NF12E21
Again, this car has been a problem for us. This is the second repair that required more time to close out than normal. It's a used car at a local dealer so we needed to wait for a sale to determine a total fix. I think it's a done deal now. We were exper...
2005 Pontiac Grand Prix 3.8L Rear Main Seal VIN: 2G2WP52245
Found trans line kinked slightly, would build up pressure, cause the convertor to swell and over time wear away at the flexplate, rear main seal housing and start to leak and make noise. Thanks for all the help!!!
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