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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 22, 2009
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Open Help Requests for GM
Help Request Answers
1992 Buick Park Avenue 3.8L starter VIN: 1G4CW5316N
this vehicle came to me as a no start- no crank. Cust had pulled starter and tested-ok. got the car and saw security light on steady. passkey system type ignition. Verified wiring from igntion switch to starter enable relay ok. Verified wiring after relay (neu...
1995 Buick Riviera 3.8L Poor Idle Quality, MIL Lamp on VIN: 1G4GD2217S
the car came to me with the check engine light on and a poor idle.scan test code 171 the sort term and long term fuel trim high.the o2 sensor was lean at idle and 2000 rpm.ichanged the o2 sensor and spark plugs.the o2 sensor would still read lean at idle but w... Trouble codes: 171 (fuel trim lean)
1979 Chevrolet Monte Carlo 5.0L pinon VIN: 1Z37H9B425
this is a malox moment i have a monte carlo 7.5 rear it has started to make a wherring noise from the rear end if you let up on the gas the noise gos away i put the car on a lift the noise is coming from the pinon bearing also 1 wheel bearing i am not sure if ...
1993 Chevrolet Lumina 3.1L Stall, incorrect rpm VIN: 2G1WL54T6P
I have a strange one here. This one was given to me on Friday from one of the mechanics I work with as he had given up on it. This car came as a dying problem. When the other mechanic checked it out he found that the RPM on the data stream was incorrect. It re...
2004 Chevrolet Silverado 1500 5.3L 2-3 shift VIN: 2GCEK19T74
According to customer, transmission suddenly quit going into third gear, can I test solenoids with 12V. Any one run across this problem, some help would be much appreciated. Is there away to check solenoid verses converter or third gear clutches. I have an OTC...
2005 GMC Sierra 1500 5.3L Oil Pressure Guage
First post and kinda long, so please bear with me. Also forgot "R.O." at shop. Truck is an escort truck, with a C.B. radio installed. Has had a GM crate motor installed by another shop. Customer said that all wiring to C.B. was run the same way as before ne...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Buick Century Custom 3.1L Ign. Lock Cyl. VIN: 2G4WS52M6X
I am overwhelmed & grateful to all who replied to my help request. I have r & rd many a lock cylinder over the years, be they stuck in one position or another. This was the first time I recall having to grab the drill. Fred [...] was correct as were the ot...
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