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Professional Automotive Repair Technical Discussions for February 3, 2013 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2003 Cadillac DeVille 4.6L starter VIN: 1G6KD54YX3 car came in intermitted no start no crank scan tool data shows crank request checked grounds at alternator bracket at trans and near battery swapped relays can jump relay and car starts and stalls have power at pin 6 yellow wire when key is in crank position c... |
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| 2012 Chevrolet Silverado 1500 LTZ 5.3L Misfire, MIL Lamp on This is a new truck that we have just got the customer into after some haggling about accessories. On Friday the customer brought vehicle in with check engine light on and slight misfire. I had all the mentioned codes and upon history found all my misfires on ... Trouble codes: P0300, P0175, P0059, P0060 |
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| 1991 Oldsmobile Cutlass Supreme 3.1L timing VIN: 1G3WH54T7M Is it possible that an ice chunk damaged the crank sensor in some way? I can visually see no damage. Any pointers would be appreciated. This is a low to no income customer (close friend also) and am attempting to help him without breaking the bank. |
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| 1993 Saturn SC2 1.9L Shifting VIN: 1G8ZH1574P Vehicle came to us with a transmission appearently in limp mode. Scan test showed no trans codes, but a code 26. Inspection revealed used ECM was for a 94. Replaced with a reman.ECM - same results. Vehicle will start in 1st, shift to 2nd, then 3rd, then go bac... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1994 Chevrolet C1500 Cheyenne 5.7L no heat VIN: 2GCEC19KXR Thanks guys for the help. It was the heater core that was plugged up. flushed it with drain o that finally cleaned it out enough |
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| 2003 Chevrolet Tahoe LT 5.3L Throttle valve VIN: 1GNEK13ZX3 Thanks for all the help. i went through the testing and in the end i replaced the throttle valve. The truck is running great. thanks again for the help |
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| 2008 Chevrolet Tahoe LTZ 5.3L cluster back lighting VIN: 1GNFK13018 This suv has 2 dimmer circuits. 1 for LED 1 for std type. The only item that was effected was the cluster backlighting. I found that voltage from BCM to led was .9v at cluster. Isolated BCM output circuit from all circuits and had 3.9v. Ran wire straight from ... |
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| 2006 GMC Sierra 1500 SLT 5.3L Front Differential VIN: 2GTEK13T66 Thanks for all the various responses. We decided to take a shot in the dark by replacing both the Trans. case range selector switch- GM #[...] for $84.81 as well as the inside 4WD selector switch- GM part #[...] for $100.90. Both are easy access, easy ... |
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| 2008 GMC Yukon Denali 6.2L rear air ride VIN: 1GKFK63818 it turns out the code was c0590 04. The 04 tells the technician its an open circuit . this made it obvious- corrosion at the top of the shocks(electric actuators). The actuators are in the top of the shocks . I cleaned the tiny terminals with battery cleane... |
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