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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 23, 2005
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Open Help Requests for GM
Help Request Answers
1993 Buick Century Custom 3.3L Cuts out, Stall, MIL Lamp on VIN: 1G4AG54N7N
This Buick came in mainly for a stalling problem, and some brake/ts bulbs out. I changed the bulbs then went to the stalling problem. I found codes in memory for TPS, CTS, and one quad driver(code 26). Monitor showed tps not changing while trying to adjust it,... Trouble codes: 26 (Quad driver code I replaced lockup solenoid in trans gone now)
1993 Cadillac DeVille 4.9L heat VIN: 1G6CD13B8P
This vehicle was recently purchased in Chicago. When driven to Cleveland heater operation was normal. Customer took vehicle to another shop for tune-up, oil change & wheel/tire balance. When returned heat was unsatisfactory. All of the items were checked/repla...

Fixes & Summaries for GM
Fix/Summary Answers
1990 Buick Park Avenue 3.8L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1G4CW54Z7L
Well, this vehicle refuses to cooperate. I have ohmed out the entire Ign Control module harness and cam and crank sensors. Replaced the ICM 2 times and the crank sensor. As mentioned, another shop replaced the CKP and failed to adjust it properly, consequent... Trouble codes: 22 (Unknown - Possible TPS volts too high), 42 (Unknown- Possible Mass airflow circuit).
1990 Oldsmobile Toronado 3.8L turn signal indicator
All of the help I received related to the ground circuit. I was intrigued by Allan's test and intend to check it out that way. The customer has been ill and unable to bring car back in, but is supposed to bring it back in tomorrow. I will inform you when probl...
1993 Pontiac Grand Am SE 3.3L No Start VIN: 1G2NE14NXP
Hello everyone. So a week has passed and the Grand Am was returned overnight to get another shot at the hard starting problem. I had many good replies in regards to the problem like checking coolant temperature for a faulty reading, possible bad injectors (des...
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