× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 25, 2006
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
1984 Cadillac DeVille 4.1L Excessive Emissions, Hesitation, Poor Fuel Economy VIN: 1G6AM478XE
Car came in barely running, found plugs black with carbon cleaned, found CTS plug broken replace sensor and plug found that O2 would not go above 600mv no matter what, replced. Now O2 never goes below 700mv no matter what even with PCV pulled off the hose, in...
1989 Chevrolet S10 Blazer Sport 4.3L No Start VIN: 1GNCT18Z7K
Well, it finally happened. I just bought this Blazer, did some fixing on it & plugged my MT 2500 in just for the heck of it. While the engine was running (perfectly) I moved the scanner from inside the truck to under the hood and I bumped the hot lead of the s...
1997 Chevrolet Corvette 5.7L climate control VIN: 1G1YY22G9V
This corvette has split climate control for the driver and the passenger. The passenger side gets cold A/C , aprox. 55 to 60 degrees. The driver gets only aprox down to 75 to 80 degrees. The blend door for the driver side is not closed all the way. Whe...
1998 Chevrolet Camaro Z28 5.7L preignition VIN: 2G1FP22G3W
Hi Guys customer complains that he gets preignition always on acceleration, hot or cold. The vehicle has had oil changes regularly and nothing else. We checked for codes and there were none. Fuel pressure in specs. The problem slowly got worse starting approx ...
2003 Chevrolet Impala LS 3.8L 3800rpm limit VIN: 2G1WH55KX3
i have done everything i can think of to pinpiont the problem , i am thinking it needs to be flashed, the internal mode switch only comes on a few models and it is not adjustable , im sure if it sees park or neutral it will limit fuel or rpms !!! has any one s...
1999 Pontiac Montana 3.4L airbag VIN: 1GMDXO3E6X
hello all ive got this 99 pontiac here with code B1040 but alldata wont load in the pc right now just wondering if someone would give me the code desception so i dont have to wait for the computer repair guy to fix this pc. thanks for the responses in advance

Fixes & Summaries for GM
Fix/Summary Answers
1990 Buick Century Custom 3.3L Stall, hard start VIN: 3G4AH54N0L
Well replies were split between ECM & ICM . So going by the ICM code in the computer I recommended an ICM . Customer requested a used unit(due to age) so we got one ,installed it and works fine . It sure did not act like an ICM though. Usually they come in & t... Trouble codes: 42 (history code EST Circuit).
1999 Chevrolet Silverado 1500 4.8L tcc VIN: 1GCEC14VXX
Thanks to everyone who replied and/or took the time to read my request. I decided to follow the suggestions of Jerry and Martin who recommended the Transgo shift solver kit. Unfotunately the customer needed his truck back before I could install the replacement...
2001 Chevrolet Silverado 2500 HD LS 6.0L Accessories VIN: 1GCHK23U51
Thanks for the replys. As many said it is going to be a challenge to get these power windows to work without changing all the cab wiring system with a BCM to match the windows. I will probably try to do standard relays and work around the BCM. Thanks again, Is...
1999 GMC Savana 1500 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 47W28E6545
hi all recieved 4 replys and 3 were for fuel whiched checked out good fuel pressure at spec and plenty of it coming out with the fault code i keep getting i'm hinting towards a cracked intake vac. is also low but no time to pull it off and have exceeded the cu...
1993 Oldsmobile Cutlass Supreme S 3.1L loss of power VIN: 1G3WH54T5P
Many thanks to all that responded!It ended up that I was losing spark from one coil.I tried another coil with the same results.I then replaced ignition module and crankshaft sensor-problem solved.I was fooled by the way the car ran when coil dropped out-it def...
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next