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Prev Professional Automotive Repair Technical Discussions for April 19, 2010
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Open Help Requests for GM
Help Request Answers
1995 Buick LeSabre Limited 3.8L Horn VIN: 1G4HR5219S
When I took off the airbag to replace the turn signal switch (with radio control on horn pad sides)I noticed that the horn had been disabled by pulling the springed power clip out of the hole. The ground clip was placed inside one of the puller holes. My only ...
1991 Cadillac DeVille 4.9L No Start VIN: 1G6CD53B6M
This thing is taking way to much time, This vehicle is no start/no crack. Jump the starter enable relay and vehicle will crank/start and stop. I have tracked it to the Pass-Key module. We have replaced the Pass-Key module with a used one from a running vehicl...
1984 Chevrolet Corvette 5.7L reverse lamp switch VIN: 1G1AY0781E
Hello, I hesitate to bring a parts issue to you guys, but all other options have turned up nothing. I am trying to find a backup lamp switch for this car, and everybody's listing gives me a switch that's just a little bit different than the one I'm looking for...
1996 Chevrolet Cavalier 2.2L Extended crank time, VIN: 1G1JC1244T
After more than 10 minutes shut off, the car is hard to start. It acts like it is not getting any fuel. The strange thing is, it will only start while pumping the accelerator pedal. I know a fuel injected car isn't supposed to act like this, but with foot off ...
2000 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEK19T7Y
Truck came in with p0137, noticed reading .40 mv all the time. Watched other bank sensor 2 and voltaged moved. Tested power for heater 12. volts, ground is good, tried another ground same result, low voltage all the time. the purple and white wire is the high ... Trouble codes: P0137 (Bank 1 sensor 2 low voltage)
2001 Chevrolet Malibu LS 3.1L No Start VIN: 1G1NE52J11
Car came in for emission failure and check engine light on.Had codes p0341 and p0442.Also no start at times have to push gas pedal to get started.Replaced camshaft position sensor for cam code and gas cap for evap code.Car passed.No check engine light and no h...
2002 Chevrolet Silverado 2500 HD 6.6L Excessive Emissions, Misfire VIN: 1GCHK23162
mornin,fellow techs.another one for the duramax techs.looks like we might get to work on this one.its an 02 so its out of warrantee for time.she's got white/grey smoke,misfire and oil dilution.[which is usually enough to qualify for warrantee repair on an inje...
2003 Chevrolet Astro 4.3L Ebcm VIN: 1GCDM19X93
This van came in with ABS, Air Bag, and SES lights on. It had P1626, U1041, and U1064 codes. I checked powers and grounds and data lines. So I replaced the EBCM, cleared codes from engine and still no communication ABS or Air Bag. Engine, transmission, BCM and...
2003 Chevrolet Cavalier 2.2L Poor Idle Quality, vibration at all rpm VIN: 1G1JH14F73
Car came in with a vibration when the AC is turned on, sometimes it would vibrate without the AC. Repaired the idle issue with timing kits. However, it still has a vibration through all rpms from the engine when the AC is on, it goes away if the AC is turned ...
2001 Saturn LW300 3.0L 2-3-4 shifts VIN: 3255632688
Hi all, just got in this saturn with nice shifts 1-2 but no other shifts available. Scanned the tranny computer and got no codes BUT pids like coolant temp -40, prnd shows ???, tps 0, and rpm is wacky. RPM actually shows 1800 with engine off, volts varies from...

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick Regal 3.8L drive belt VIN: 2G4WB15L4R
Customer has not yet returned for me to recheck the items, thank you for all the help. I am pretty sure the pulleys all line up and that there is not any coolant leaks. We are trying to get a hold of a gatorback belt, our suppliers cannot get that belt. I am a...
1994 Chevrolet C3500 5.7L turn signals VIN: 1GBHC34K9R
Thanks to all that replied. Cab chassis vehicles do not have the rear light circuit baord, Voltage dropped tested the grounds front and back and they are ok, .04 volt drop. found the problem on power side of rear the pin in the socket when bulb was installed w...
1995 Chevrolet K1500 Silverado 5.0L left front VIN: 1GCEK19H6S
Almost all responses said caliper . I had lubed the bushings and there was no noticable play in its mounting.But Replaced cal. and haven't heard is since. Thank you all.
1996 Chevrolet Corvette 5.7L MIL Lamp on VIN: 1G1YY22PXT
A Delco distributor fixed it. Imagine that. An aftermarket part not up to OE spec. Never heard of that... Anyway, thanks for the help guys. I suppose I should have figured this out for myself, but was getting panicky. Trouble codes: P0336.
1998 Chevrolet S10 ZR2 4.3L brake line VIN: 1GCCT14W8W
Thank you all for your help on this! As many of you posted I simulated a panic stop to reset the proportioning valve and was able to get pressure to the rear brakes. The Abs Light is still an issue but the customer declined to go any further on it. Thanks agai...
2006 Chevrolet Express 3500 6.0L oil pressure VIN: 1GBJG31U36
Thank you thank you. We first tried just the o-ring seal but that didnt work, so apart it came and we replaced the oil pump. Thank you Rick,Gary,William,Mark,Dan,Steven,and Jacob you guys were right on the money with the oil pump. After replacing it we had 55 ...
2006 Chevrolet Silverado 1500 LS 5.3L Misfire, MIL Lamp on VIN: 2GCEK13T46
Thanks to everyone who replied Dennis it the nail on the head it was a scared lifter and cam. Here is Dennis reply. Dennis from New York; Hey Ray, both myself and another IATN member have recently encountered the same problem I think you are experiencing. My c... Trouble codes: P0300 (ramdon misfire).
2001 Saturn L300 3.0L MIL Lamp on VIN: 1G8JN52R31
found the car had a bad bcm causing all of this.most of the replies were all right on and this seemed to be the direction everyone was going.checked all powers and grounds to it prior to condemning it.also bcm had to be programmed at dealer prior,along with th... Trouble codes: B0296, U0100, U2105.
2003 Saturn L300 3.0L door lock VIN: 1G8JW54R33
Thanks for the help but customer didnot want to go any further at this time with the repair. Found parking lights staying energized when using the remote keyless entry/lock which was the draw.
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