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Prev Professional Automotive Repair Technical Discussions for March 15, 2012
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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1999 Buick Century Custom 3.1L Lifters VIN: 2G4WS52M5X
This car came in for the typical blown intake gasket problem, replaced intake gaskets, change oil and filter, engine runs fine cold, after about 10 miles of driving it starts missing at idle, check and found cylinders #1 and 2 have no compression, back off roc...
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2002 Buick LeSabre Custom 3.8L Stall VIN: 1G4HP54K32
Have read through knowledge base, tried other fixes, still continues to die at will. Looking for direction.
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2005 Buick Rendezvous Ultra 3.6L Powertrain Noise Resonating VIN: 3G5DB03705
On acceleration and normal driving around 1800 RPM there is a droaning noise heard in the passenger compartment that sounds like it is coming from the rear of the vehicle. The rear differential mount was cleared of any debris and the torque tube mount was clea...
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2004 Cadillac XLR 4.6L MIL Lamp on
Hello fellow techs, here I have this weeks nightmare. I have a relatively low mileage XLR Caddilac which came in with no real running problem, but this P0171 lean condition code. Engine runs smooth with no hesitation or obvious power problem. At first I erased... Trouble codes: P0171, P, 174 (System runs lean bank 2)
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2006 Cadillac STS 3.6L Power Seats VIN: 1G6DW67726
Customer found dead battery one day. It was a old Delco battery. Battery was replaced with new Delco Battery. In 3 days battery was dead. He would charge battery and use vehicle 3-4 days latter dead. Another shop replaced battery again. Then would last another...
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2002 Chevrolet Suburban 1500 LT 5.3L L/R window VIN: 1GNFK16Z72
I am ready to set fire to this truck.I obviously am not comprehending wiring schematic.L/R window motor runs constantly in down position.Unplug switch or window lock engaged motor does not run. With window lock in "go" position motor runs and with rear switch ...
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2002 Chevrolet Silverado 1500 5.3L Steering VIN: 2GCEK19TX2
I have a vehicle that turns to the left just fine but will not turn to the right with the engine running. The wheels turn very easily with the front end off the ground,engine running and not running, but with the truck down, turns very hard to the right. I can...
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2003 Chevrolet Tracker LT 2.5L Headlights VIN: 2CNBE63403
Hello everyone,Thanks in advance, I am pulling my hair on this one. I have high beam headlights when I pull headlight lever back toward me key on or off. I also have headlights durning the daytime while the engine is running only. I have no headlights at night...
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2005 Chevrolet Malibu Maxx LT 3.5L starter VIN: 1G1ZU54865
The remote start has stopped working. The remote was just replaced and the dealer says that it is sending the signal to start the car with the remote. The other functions of the remote work fine. I scanned the car and found p0826 code saying the tap up/down sw...
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2006 Chevrolet Cobalt SS 2.0L engine prefo VIN: 1G1AP11P86
vechile runs fine at idle rev up to [...] then sets poo68 code goes into limp in mode reduced power flashes on dash.the area we are in is at sea level but baro reads 0 on scanner.also no rev limiter tried resting thru scanner only to have code come up and g...
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2005 GMC Sierra 3500 SLT 6.6L Fuel rail pressure sensor, PCM VIN: 1GTHK33295
Replaced water pump in vehicle, after it wouldnt start. Has codes P0193 FRP sensor circuit high voltage, P0642 5 volt reference 1 circuit low voltage. Replaced FRPS with no change. The wires to the sensor have been all ran new bypassing the engine harness conn...
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2005 Hummer H2 6.0L Lock cylinder VIN: 5GRGN23U95
This H2 will at times now allow the key to turn. The owner stated that it took 30 Min's yesterday to get the key to finally turn. I have not been able to duplicate her complaint as of yet, but I do believe her. For me the key goes in like normal, turns like no...
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1995 Pontiac Grand Am SE 2.3L engine VIN: 1G2NE55D7S
Hello IATN! This is a 1995 Pontiac Grand Am with the 2.3L engine,and the 3 speed transmission. Customer complained that after a long drive (at least 1 hour) that the engine will stall coming to a stop and that it will not restart for about 30 minutes or so, or...
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Fixes & Summaries for GM
Fix/Summary Answers
1992 Buick Roadmaster Limited 5.7L EGR System VIN: 1G4BT537XN
Thanks for everyone that responded to my request - as recommeded we have replaced the speed sensor - the egr start working and ok at this time. Thanks again - speed sensor was the problem.
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2006 Buick Terraza CXL 3.5L Cuts out VIN: 5GADV33L06
Thank you to all that replied. The vehicle is fixed. It turned out to be the fuse block. The PCM relay powers many different sensors and the power feed to each one of them was dropping out for that quick second. The computer controls the ground for that re...
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1996 Chevrolet Blazer 4.3L timing cover
MOST ALL RECOMMENDED DROP OIL PAN AND I AGREE AFTER DOING THIS JOB.BECAUSE GM USED A SINGLE PIECE SILICON GASKET YOU COULD DROP THE PAN AND REUSE THE GASKET OVER. THIS VEHICLE WAS HIGH MILEAGE AND LEAKING OIL AT THE REAR ALSO. WE ENDED UP RESEALING THE ENGI...
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1999 GMC K1500 Suburban SLE 5.7L Misfire VIN: 3GKFK16R9X
Thanks to all for the help. We went for a test drive with the scanner on it and the TCC was acting up. I could never duplicate this problem after we did the fuel pump and filter. The customer drives this vehicle up to lake tahoe almost every other weekend and ...
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1997 Pontiac Trans Sport 3.4L Misfire, MIL Lamp on VIN: 1GMDU06E9V
Several Tech's had great advice but did not fix this condition. The customer had to have his car back sooner than I could really dig into repairs. Sorry for the delay and no useful fix information. Trouble codes: P1406 (Egr), P0300 (Multipal misfire).
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2003 Saturn L300 3.0L MIL Lamp on VIN: 1G8JW54R43
Hi all, Thanks for the help. Vehicle was shipped with a new mass air flow and code has not returned. Trans r&r is next Trouble codes: P0174 (Bank 2 lean), P1811 (Trans shift adapt max).
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