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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 3, 2006
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Open Help Requests for GM
Help Request Answers
1991 Buick Park Avenue 3.8L Stall VIN: 1G4CW53L6M
Car brought to shop for intermittent stall.(I operated car for 2 days with no stall) had code 17(red brick said this was a crank sensor fault/crank sensors have a high failure rate) replaced crank sensor with oem, code 17 immediately returned. a search of alld... Trouble codes: 17 (spark reference circuit)
1992 Chevrolet S10 Blazer 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1GNCT18Z0K
Hi All, Well, this truck is one of my personal vehicles, and i love it so much i had to remove the old noisy (wrist pin) TBI motor, and install a 94 CPI motor and a 92 ECM/Harness. I was expecting 200 HP, like it is supposed to produce. Hehe, nope. Let me fil...
1997 Chevrolet Cavalier 2.2L Poor Fuel Economy VIN: 1G3T5678LO
hi techs. i have a car that has 2 fuel injectors that are seeping where they go into the intake. ordered a seal kit from gm and replaced all orings supplied by kit. now i have 4 injectors leaking more then before. i was very careful when replacing injectors lu...
1997 GMC K1500 Sierra SL 5.0L No Start VIN: 1GTEK14M6V
this vechicle dosent want to start cold unless you spray starting fluid into air horn then runs fine rest of the day if you start around 10 pm at night still starts fine in am its when sits for up to 12 hours that trouble accures I have switched ecm and fuel p...
1995 Pontiac Bonneville SE 3.8L Hesitation, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1G2HX52KOS
vehicle came in with check engine light. scan pcm found code p0325. system has two knock sensors. data stream shows coninuious knock and spark retard. engine very smooth and quiet, no signs of worn parts or audiable knock under any loads or rpm. checked all gr... Trouble codes: 325 (esc failure)
1999 Pontiac Bonneville SE 3.8L Runs Good! VIN: 1G2HX52K6X
Hello friends, I hope you have a little time to read this and maybe give some advice on this car. The car is a 99 Bonneville 3.8 K engine. The history goes something like this. It failed the ILL EPA test in Jan this year for P0420. The owner had a friend p...
2002 Pontiac Aztek 3.4L Blower Motor VIN: 3G7DA03EL2
Blower motor will work fine on all speeds Then it will start acting up It will stop working all together for about 5 or 10 seconds ( no speeds) then start right back up and work fine What do i need to look for or at in such a short inop time thanks in advance
2000 Saturn SL 1.9L security VIN: 1S8FC6H8GY
This vehicle came in on a hook, the battery post broke out of the battery, the customer tryed boosting the car to no avail. installed a new battery, now the security light flashes on the dash. fuel pump stays running, injectors shut off. what is the procedure ...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick Skylark Limited 2.4L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 1G4NJ52T3V
Thanks Everyone for the help! The major fix, thanks to Edward, Kevin and Tony, was to replace the oil pump cover. After replacement I still had an intermittent misfire and thought that the oil pressure was still too high. 95psi @ 2000 RPM cold start up. Upon... Trouble codes: P0300 (multiple misfire detected).
2003 Buick Century 3.1L Stall
After much windshield time I was finally able to nail this one down. The problem turned out to be a sticking map sensor. The pcm would not register a map sensor fault code just the p0101 maf code. Apparently while at cruise the map reading was sticking at 1.3v... Trouble codes: P0101.
1995 Cadillac Eldorado 4.6L blower motor VIN: 1G6EL12Y2S
Okay, so I didn't actually fix this, I went on vacation and the other tech. got it. It wound up being the blower motor, so good call and thanks to Ed, Stephen and Mark for responding. Also, thanks to Michael, Roger, Charlie, Steve, Brian and Gene for respondin...
2001 Chevrolet Silverado 2500 6.0L Hydroboost VIN: 1GCHCZ9116
Hi group! Thanks for the replies! I would like to add that the powersteering is never affected even when heavy braking. Customer has not brought truck back at this time. We will update when truck comes back! Thanks again for the replys!
2006 Chevrolet Impala SS 5.3L a/c VIN: 2G1WD58C76
Car was fix, system is working great, the fix was a new condenser, just like a suspected after a got the car fix i went back to the body shop were the car came from and after a silght arm twist of the body shop guy, he confess the the condenser was from a wrec...
1988 Oldsmobile Cutlass Ciera 3.8L No Start
well most of you guys were right the timing chain fixed it . thanks guys
1999 Oldsmobile Cutlass GL 3.1L cooling fans VIN: 1G3NB52M4X
Thank you all four your prompt and helpful replies. You guys were correct, the fan engagement temperature was not 195, but 225. The fix however was another new coolant tank pressure cap. After reading several replies outlining either cap or thermostat posibili...
2003 Oldsmobile Bravada 4.2L Transfer case VIN: 1GHDT13S03
Thanks for the replys. We replaced the output speed sensor in the transfer case (has 3 identical sensors, only replaced output)and problem seems to be gone. Customer drove & agrees that it is '1000%' better than before.
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