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Prev Professional Automotive Repair Technical Discussions for January 29, 2005
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Open Help Requests for GM
Help Request Answers
1998 Buick Century Custom 3.1L prndl readout VIN: 2G4WS52M3W
Thought we had a straight forward issue on this Century. The Instrument Cluster lights up P when you first start it, goes to R when you shift to R then stays in R until you go to D the goes to D, on the way back it goes to R and does not return to P until rest...
1986 Chevrolet S10 2.5L engine/trans VIN: 1GCBS14E2G
I hope someone can help, 86 S10 chev pickup 2.5L/automatic. Vibration at idle only in drive... Rebuilt engine, but vibration was there before rebuild.Engine and trans mounts were replaced with rebuilt engine.
1989 Chevrolet C1500 Cheyenne 5.7L 700r4 Trans VIN: 1GCDC14K8K
I replaced the trans due to same complaint. Drove for approx 15 miles and symtom reoccured
1995 Chevrolet S10 LS 2.2L t/s flasher VIN: 1GCCS1942S
Can anyone tell me how to get to the turn signal flasher? not a very technical question, I know but my mitchell wiring diagram says it is behind the center of the I/P at the convenience center. surely you need'nt remove the entire intrument panel to change a t...
1996 Chevrolet Cavalier Z24 2.4L cv joint - clutch ? VIN: 1G1JF12T9T
Used to do a lot of work for this lady. She traded for a new Blazer so I don't see her very often anymore. Her son got a Cavalier. she called and asked me if I would put a clutch in it. She brought it in this morning, I can't find anything wrong with the clutc...
1998 Chevrolet Malibu 2.4L waterpump
I replaced a water pump because it was leaking externally. I found that the oil has water in it also. according to the cust., the car has never overheated. is there a chance that the water pump leaked into the engine where it is driven by the chain? I have an ...
1999 Chevrolet Tahoe LS 5.7L Hesitation, Surge, Cuts out, Misfire VIN: 1GNEC13R2X
When the problem occurs, the voltage reading on the scanner on both front O2 sensors goes to zero. With O2 sensors disconnected the reading on the scanner stays at .445 volts on both sides. While the trans is acting up, I can tell the motor is only running on ...
2001 Chevrolet Malibu 3.1L security lite VIN: 1G1ND52J21
car came in as a no start, theft lite flashing. we did a relearn for anti-theft. the car starts and runs now but anti-theft lite stays on. no codes in system with snap on modus. any clue's to diagnos this !!! we did find a wire diagram but no spec's as to what...

Fixes & Summaries for GM
Fix/Summary Answers
1993 Buick Century Custom 3.3L Cuts out, Stall, MIL Lamp on VIN: 1G4AG54N7N
Although not fixed yet, I'm a lot closer now. What I overlooked in reveiwing my scan movie data was the vehicle speed. The scan showed that the vehicle speed is going very high and the computer is cutting off the injectors when the scan shows over 100mph altho... Trouble codes: 26 (Quad driver code I replaced lockup solenoid in trans gone now).
1995 Chevrolet Camaro Z28 5.7L Security Ignition System
Hey Fellow Techs, I recieved 20 replies to help me. I want to thank all who replied. Patrick [...], Robo14, Robert, Clyde [...], Don Arch, and TShaw gave good Info of using a re...
2001 Chevrolet Silverado 3500 6.6L Starting VIN: 1GBJK34151
Well, it's at the dealer. There are some open campaigns on injectors and drivers on this truck. I'm hoping it's fully covered. By the way, the block heater plug is on the right(the owners manual says left!). Thanks for all the replies. Most of you suggested th...
2002 Chevrolet Suburban 1500 LS 5.3L abs VIN: 2GNEC16T62
Thanks for all the replies, especial thanks to Alan in Texas he was right on , we install new ABS control unit & it took care of the problem
2002 Chevrolet Impala 3.8L Diaognostic window
The wheel sensor was the culprit. Thanks for all the help ken
1998 GMC Jimmy Envoy 4.3L ignition lock VIN: 1GKDT13W6W
The first reply (Richard) nailed it right on...the connector in the floor shifter...I wish MOD wasn't so mixed-up...thanks to all of you GM PRO'S...
2001 GMC Safari SL 4.3L No Start, Misfire VIN: 1GTDM19W31
Well, I received some good replies and very quick responses to our situation. It was suggested that we try drilling a hole in the distributor cap to assist venting , but we decided that because the older GMs did not use a vent and never seemed to experience th...
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