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Prev Professional Automotive Repair Technical Discussions for November 7, 2012
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2003 Buick Century Custom 3.1L fuel and temperature lights VIN: 2G4WS52J43
Customer complain is as follows-the low fuel light and high temperature light come on intermittantly even though the fuel and temperature gauges show that all is well. Can not replicate the problem/condition when the vehicle is in the garage.
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1992 Chevrolet K3500 Cheyenne 6.5L Unknown VIN: 1GCHK34F9N
Help from trans techs... I am not a transmisson tech but I told customer I would "look at it" for him... Anyway, when you come to a full stop and then proceed {as from a stop sign} the transmission is always in second gear for a split second and then shifts to...
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2002 Chevrolet Silverado 2500 HD 6.6L monitor not running VIN: 1GCHK23172
there was a p0401 egr code and a p0380,glow plugs.I cleaned the maf and so far replaced 4 glow plugs drivers side.The egr monitor is not running.I hope someone can give me heads up on the enableing criteria.I used to work at G.M. but no longer have the S.I. av...
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2004 Chevrolet Silverado 1500 LS 5.3L Mode Actuator VIN: 2GCEK13T34
My customer stated that her system is stuck on defrost. I found code B0263 and when I clear it the mode actuator dose a full sweep range of motion then stays at defrost and sets the same code. I clear the code and it dose the same thing. I'm a bit lost. The fu...
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1998 GMC K2500 Sierra SL 6.5L Misfire, runaway VIN: 1GTGK29FXW
This truck became our snow plow truck 2 years ago after entering our Vehicle Donation Program with 400,000km on it. This was a very dirty work truck. At first we had intermittent stall and no start until we installed a new PMD. Everything was fine until the en... Trouble codes: P0219 (Engine overspeed)
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1996 Oldsmobile Cutlass Ciera 3.1L Vibration VIN: 1G3AJ55M2T
Upon hard acceleration, (passing or on-ramping) there is a knocking sound and vibration. Have replaced plugs and wires and fuel filter. Fuel pressure good. Found a little play in inner right cv joint, replaced shaft--no change. Can get same effect on lift with...
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2003 Pontiac Grand Prix GT 3.8L Blend Doors VIN: 1G2WP52K23
Car came in with complaint it would blow only cold air no matter the temp selection. Car has manual HVAC controls with the dual zone temp control. Air flow volume is good when cold is selected, but flow drops significantly when selecting heat, and temp does no...
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Buick LeSabre Limited 3.8L Fuel Pump,Dr.Seat,Dr Window VIN: 1G4HR52K8X
Thanks for all the replies.Almost everyone nailed it...Ground splice pack under carpet corroded.Thanks again iATN members
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1996 Chevrolet Blazer 4.3L Stall VIN: 1GNDT13W8T
Hey Thanks for all the info! I got some really good ones, like ckp sensor connector full of oil, it was ok. Than check the egr valve for carbon build up, which was ok too. Also check the os2 sensors, which are a little on the lazy side, but so far the cel is n...
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2000 Chevrolet Malibu 3.1L Poor Idle Quality, Misfire VIN: 1G1ND52J8Y
Hi Guys, Thanks for all the great suggestions. We discovered a worn cam shaft. The customer declined the repair Trouble codes: P0300 (Random Missfire).
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2001 Chevrolet Silverado 2500 HD 8.1L intake bolts VIN: 1GCHK29G21
The customer is going to try shorter intervals and keep and eye on consumption, if it is still bad we will do the intake gaskets. Thanks for the help
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2001 Chevrolet Malibu 3.1L radio/clock VIN: 1G1ND52J01
This is a summary of the replies "look for signs of rodents bedding in the area" - "had one on a silverado that did the same thing-was a bad radio - "another tech mentioned the radio being the problem "do the pwr windows work with the radio turned on?indicatin...
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2004 Chevrolet W3500 Tiltmaster W3S042 4.8L Engine VIN: J8BB4B1454
FINALLY GOT OK TO PULL ENIGNE AND FOUND REASON NOISE SOUNDED HIGH WAS THE #3 PISTON HITTING CYLINDER HEAD DUE TO STACKED ROD BEARING. THIS IS SECOND ENGINE IN 2 YEARS THAT HAS HAD ROD FAILURE. CUSTOMER NOT HAPPY WITH ISUZU. ENGINE STILL AT MACHINE SHOP / 3...
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2008 Chevrolet Silverado 1500 WT 5.3L No Start VIN: 3GCEC13018
thaks for the replies. Well we cleaned all grounds, check battery cable ends, even drilled hole in battery cable ends in the middle of the crimped ares. Heated and soldered orginal cable ends to be sure. Check history sales on the body control module, found th...
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2003 GMC Envoy SLT 4.2L all lights VIN: 1GKDT13S63
I have checked all that most of you recomended. No change. I was aware of the tsb for the truck. Customer is living with issue. Can't call it fixed... Thanks to all who responded to this request.
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2006 GMC Sierra 1500 SLE 5.3L MIL Lamp on VIN: 1GTEK19Z16
First i would like to say sorry for the hold up. I replace the maf sensor with a oem part and that did the trick. thanks iatn is priceless. Trouble codes: P0172, P0175.
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