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Prev Professional Automotive Repair Technical Discussions for December 3, 2005
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Open Help Requests for GM
Help Request Answers
1996 Buick Skylark Custom 3.1L No Start, Stall VIN: 1G4NJ52M7T
On this buick when you turn key on sometimes the dash light will not light up will start and quit. if you turn key on in maybe 10 sec or 2min or more the dash lights light up and car will start. sometime the ets light stays on. when the dash indicator lights d... Trouble codes: P1629
1995 Cadillac Seville STS 4.6L cruse control VIN: 1G6KY529XS
replaced pcm due to failing test for p068, then set three more codes, passed for p061, went through testing for [...] time led to check ground ckt 451, checked with headlamp, tested ok, started p062 test 2nd time had different voltage readings at cruse ser...
1993 Chevrolet Camaro Indianapolis 500 Pace Car 5.7L No Start VIN: 2G1FP22P7P
i have changed the spark plugs. the old ones were fuel fouled. i pulled the plugs and squrted a little oil in case the cylinders were washed down. i have changed the knock sensor with after market standard p-2. i am getting the same flag- sensors open- i rigge... Trouble codes: 42 (info flag- both esc sensors are open)
1995 GMC C1500 Sierra SL 4.3L Hesitation, Surge, Cuts out VIN: 1GTEC14Z55
this truck came into the shop with the customer stating it was stalling when she attempted to pull out from a stop. after test drive i noted a general lack of power under all conditions. the engine idles well, and no codes are present although the customer sta...
2001 Oldsmobile Aurora 4.0L slight knocking VIN: 1G3GS64C01
customer complaint of slight knocking noise more noticable when good and warm.mostly hear at idle or just off idle. has been happening for 6000 miles , we checked bulitins. only one found was forcarbon build up on piston. gm wants upper engine cleaner fed in...

Fixes & Summaries for GM
Fix/Summary Answers
1991 Cadillac DeVille 4.9L vibration VIN: 16CD53B6M4
This is going to be an ongoing repair as the customer does not want to put a lot of money in this car all at once. Like I stated in the original post, I replaced the left front and left rear mounts with no change. Last Friday, I replaced the right rear motor m...
1997 Chevrolet Cavalier 2.2L run's hot VIN: 1G1JC5243V
customer total the vehicle a cuple of weeks ago and i never had a chance to check the gage resistence to verify the correct calibration, thanks to all the help.
2000 Chevrolet Silverado 1500 5.3L Misfire VIN: 2GCEC19T3Y
thanks for the replies. for the most part everyone was pointing toward the injectors. i had checked them and cleaned them with out a change. what i found was an odd cam sensor wave form. instead of a square wave it looked more like and ignition wave form that ...
1995 GMC Safari 4.3L MIL Lamp on VIN: 1GDDM19W15
I had several replies and several said to check to see if the valve was installed upside down, I did and it was correct. After doing that and checking that there wasn't any excessive pressure on the exuast port. I then ran the trouble tree again and came to th... Trouble codes: 32 (egr problem).
1989 Pontiac Grand Prix 3.1L Excessive Emissions, No Start VIN: 1G2WJ14T2K
This car is fixed. Many thanks to all 15 replies with meaningful suggestions. Special thanks to Joseph from La, Vincent from Illinois, Thomas from Southern Calif:, Roland also from Southern Calif:, who all mention the coolent level sensor at the radiator. That...
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