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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 5, 2006
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
2000 Chevrolet P-30 5.7L Alternator VIN: 5B4KP32R5Y
Truck came in with battery discharging. Customer requested new batery and alternator due to time restraints. Problem remained. Checked fuses. Found Engine fuse blown. (not ECM1 fuse.. engine still ran) Engine fuse has direct short to ground. Very limited info ...
1993 GMC Safari SLE 4.3L Unknown VIN: 1GKEL19W2P
hey fellow techs this is a good one been working on this one in my spare time 93 gmc safri xt (awd) it has a viberation at higher speeds comes in around 55 and gets worse , deffinitly not in the front end almost like somthing out of ballance. the best way one ...
1998 GMC K1500 Sierra SL 5.7L In the truck VIN: 2GTEK19ROW
Hey all my friends in iatn land. This is my truck. About 5 months ago we added a new business to our automotive shop. For communications we decided to go with Nextel. Everything was fine for about 4 months when I started not being able to get calls or direct c...
2001 GMC Safari SLE 4.3L MIL Lamp on VIN: 1GKDM19WX1
Van came in with code 1345,checked out,found cam sensor eaten away due to wear in dist.Replaced dist with oem,now not able to synchronise dist.Per manuel,it should give me a degree of offset on teck 2 after engine reved up pass 3000rpm,but it will not show any... Trouble codes: 1345 (cam /crank degree offset)
1991 Pontiac Bonneville LE 3.8L Poor Idle Quality VIN: 1G2HX54CXM
Car starts fine and runs good with no problems. When engine gets to normal operating temperature idle increases to 1225-1250 rpm. Sometimes shutting it off and restarting will drop idle to normal but not often. With a # 1228253 ECM I felt the computer was the ...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Buick Park Avenue Ultra 3.8L Surge VIN: 1G4CU5216X
the problem was the ecm was not controling the torque convertor engagement. replaced ecm also serviced trans, problem was fixed thanks for replys.
1976 Chevrolet Corvette Stingray 5.7L power windows VIN: 1737L6S425
Thanks to the replies to my request we found the root cause of the window motors not getting power to be a faulty relay. We had power up to the relay, the ground was good and the switched power got to the relay, but no power out. The customer, who does a lot o...
1990 Oldsmobile Cutlass Supreme SL 3.1L Misfire VIN: 1G3WS54TXL
Thanks to everyone for their time and insight. The vehicle did indeed need a new ignition module. Replaced it and it runs good again. However that really wasn't my question in the post. My question was how do I diagnose this vehicle properly. My idea of diag...
1999 Pontiac Grand Prix GTP 3.8L speedometer VIN: 1G2WR5214X
the problem was c1 blue connector pinn # 55 dark green wire comes out of ecm runs along top of core support around the battery to a junction block. someone at one time put a battery in the car and didnt put the harness back on the core support brace properly a...
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