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Prev Professional Automotive Repair Technical Discussions for May 31, 2011
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Open Help Requests for GM
Help Request Answers
1995 Buick LeSabre Custom 3.8L Hesitation, MIL Lamp on VIN: 1G4HP52L8S
I have this LeSabre that is causing me a real headache. The problem occurs completely intermittently and seems to have no common factors that cause it to happen. What happens is during accelleration it hesitates. Now to me it feels like a plugged converter, th... Trouble codes: P0401, P1406
1996 Buick Riviera 3.8L Stall, MIL Lamp on VIN: 1G46D22KXT
goodafternoon guts and gals ive got this buick with camsensor code in it clear code and returns cust states vech stall intermiten we have been driving vech and stalled 1 time and light came back on same code po341 replaced cam sensor and crank sensor from gm a... Trouble codes: P0341
1994 Chevrolet Corvette 5.7L No Start VIN: 1G1YY22P1R
I got this car from a transmission shop. There customer said the transmission would not upshift. It was towed to there shop. They got it to start drove it one block and trans did not up shift. Engine flooded out for them barly getting it back to there shop. Th... Trouble codes: 16 (low resolution pulse failure), 42 (EST grounded), 41 (EST open)
1996 Chevrolet S10 4.3L No Start VIN: 1GCCS19X4T
customer in for intake gaskets performed repair and now vehicle is a no start... vehicle ran well before repair. I have changed full distributor, coil and module... fuel pressure is fine.. has spark.. will not start with starting fluid either... at wits end sp...
1997 Chevrolet Express 2500 5.7L No Start VIN: 1GCGG25R4U
i have a van that doesnt send fuel relay voltage to actuate fuel pump.i can jump orange and grey at oil sender,pressure good and holds steady. have bat power at ign coil,no spark. have refrence voltage at map,maf sensor.no comunication to scanner,have battery ...
2002 Chevrolet Venture 3.4L No Start VIN: 1GNDU03E32
HI all I am stumped on this one, I don't have much experience on Passkey III. I'd appreciate any help possible. Customer went to start van after sitting for a couple of days. He found that the battery was totally dead. He tried a battery charger on 100amp boos... Trouble codes: P1626, U1000
2004 Chevrolet Venture LS 3.4L Unknown VIN: 1GNDX03E94
Hello, I have this '04 Venture here that is in great shape. The customer is on top of all the maintenance, and take good care of this van, as it is their only vehicle. Now when you are driving under about 50mph the van is fine, but as soon as you go on the hig...
2005 Chevrolet Silverado 1500 LS 5.3L radio VIN: 1GCEK19B75
alternator noise in radio, rev engine and it gets worse. Had alternator rebuilt and still the same . Changed alt to another and still the same . Remove alt . wire and noise is gone . Vehicle has BOSE system . Cannot sell like this , help !. Mike
2006 Chevrolet Trailblazer LT 5.3L Hesitation, Misfire, MIL Lamp on VIN: 1GNET16MX6
Thanks ahead of time for looking: We preformed a compression check, leak down check, all ok. Did run in compression test on the #1 bank. Cylinder #1 was low and 3, 5 and 7 were fine. Removed cylinder heads and valves. #1 exhaust valve excessive wear. Regrounde... Trouble codes: P0301
2008 Chevrolet HHR LT 2.4L Temperature control actuator VIN: 3GNDA33P68
I replaced the temperature control actuator because the actuator wasn't pulling the temperature all the way cold. I can remove the actuator and manually turn the door to the full cold position and it will freeze you out of the car. I can mess this the temperat...
2008 Chevrolet HHR LT Panel 2.4L No Start VIN: 3GNDA13D78
This car came in running and would not shut off. The lock cylinder would not turn to the off position. We replaced the Ignition lock cylinder. The car started and ran for about 10 seconds and quit, now it does not engage the starter. If I turn the key on and j... Trouble codes: B3055 (b3935-), B3935
2002 GMC Sierra 2500 HD 6.6L exhaust VIN: 1GTHK29192
Smokes white at idle and after idling a few minutes, when engine throttled up it billows a huge cloud of white smoke. This truck belongs to a friend, I specialize in German cars, trying to help him out on this. He had truck back to GM dealer and they want to s...

Fixes & Summaries for GM
Fix/Summary Answers
1998 Buick Park Avenue 3.8L No Start VIN: 1G4CW52K5W
Thank you everyone for your advice on this one. A few of your were right about the intake leaking antifreeze. We unbolted the exhaust and found antifreeze coming out of the exhaust slightly, so we pressure tested it and found an internal leaking in intake m...
1998 Buick Regal LS 3.8L Cuts out, Poor Fuel Economy VIN: 2G4WB52KXW
Thanks everyone for all your input. The cust's main focus was keeping the car from intermittently cutting off. While in the shop it died. I feel very confident this was resolved w/a new fuel pump relay. I explained impact & effects of the MAF not working. A...
2002 Buick Rendezvous CXL 3.4L driveline VIN: 3G5DB03E02
well as almost every one suggested its coming from the torque tube mount , i took it off and cleaned it as per the service bulleten but it didnt make any difference , only GM. could be dumb enough to mount this to a tin crossmember and the floor pan!! ,just li...
1995 Chevrolet K1500 Suburban LT 5.7L temprature VIN: 1GNFK16K6S
thanks to all the replies.after some hair pulling i removed the new blower motor that was installed and bench tested.to my frustration i found the blower motor was wound backwards.installed replacment and works great now. always the dumb stuff thanks again
2002 Chevrolet S10 4.3L Misfire VIN: 1GCCS19W82
sorry for the long delay. I have figured out the problem. It was a manufacture defect. the cam was eating up the distributor gear there for the misfire reading on #3 #6. I was able to make it stop misfiring when I moved the distributor back n forth. I hope thi... Trouble codes: P0300 (Misfire random).
2004 Chevrolet Silverado 2500 6.0L Accessories VIN: 1GCHK231X4
veh.with gages pegged was replaced with one from wreaking yard and seems ok now.
2004 Chevrolet Avalanche 1500 5.3L 4 Wheel Abs VIN: 3GNEK12T54
The master cylinder was replaced.It has been driven for awhile and no failures occured. This fixed vehicle. The ABS was not activating. Thanks to all that replied.
2006 Chevrolet Cobalt LS 2.2L main bearing bolts VIN: 1G1AL58F46
Thanks for all the replies guys. Going off the first couple responces, I reused the bolts. Everything went together fine and the car ran good. Checking it today for leaks after a trip to Deleware, so we'll see how I did. Thanks again!
2006 Chevrolet Cobalt LS 2.2L Air Bag VIN: 1G1AK55F46
it took some time but we finally got this one figured out. it did require a Tech 2 to get the SDM programmed. thanks to all those who helped with advise on this vehicle.
2008 Chevrolet Silverado 1500 WT 4.3L Misfire, MIL Lamp on VIN: 1GCEK14X28
Well got this one fixed but it was not the fuel pump. After being convinced that the fuel pump was the culprit and armed with replies on here,I bit the bullet and put a new Delphi fuel pump module in it, I'm sorry to say that it did not change a thing. Still ... Trouble codes: P0300.
2000 Pontiac Grand Am SE 3.4L Stall VIN: IG2NF1ZE9M
Thanks to all that responded to my post. The car is doing well. (5 days).Turns out that the owner negelected to mention that she bought the car- and found out later that it had been damaged in a flood somewhere in the midwest. The fix was to R&R the MAF, whic... Trouble codes: P0122 (TPS Voltage Low).
2004 Pontiac Grand Prix GT1 3.8L No Start, Stall VIN: 2G2WP52264
Thank you to all of the reccomendations. The car has not acted up since i posted it. I am ready and know what i need to do when the car does decide to act up.
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