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Professional Automotive Repair Technical Discussions for September 25, 2018 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1990 Chevrolet C1500 Cheyenne 5.7L No Start VIN: 1GCDC14K3L vehicle was towed in crank no start. vehicle started and drove in stalled after running for a bit as soon as engine started getting warm. then it will crank and will no start. map sensor was replaced, spark plugs, cap, rotor. vehicle has injector pulse whi... Trouble codes: 33 (map sensor), 33 (map sensor) |
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| 2015 Chevrolet Tahoe LTZ 5.3L Steering VIN: 1GNSKBKC7F This Tahoe very intermittently steers itself. It has a stability light that comes on and a C0800 Device Power Circuit Voltage Code in the ABS module. There are no other codes in any other module including the steering module. The customer took a video when... |
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| 1996 GMC C1500 Suburban SLE 5.7L Misfire VIN: 3GKEC16R9T Engine has a misfire on #3 cylinder. Also a slight, under the radar misfire at #6 very low counts. Map sensor, distributor set at 0 -2, and a computer were thrown at the problem with no joy. These parts were added after the engine was rebuilt. The cracked ... Trouble codes: P00, 303 (Misfire 99 count) |
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| 2010 GMC Terrain SLT 2.4L Brake Pedal VIN: 2CTALHEW1A Customer brought us vehicle for soft, mushy brake pedal. Scanned computer for codes--(none present). Local GM dealer evaluation was brake booster & brake master cylinder needed replacement. New parts ordered from GM dealer & installed. Master cylinder benc... |
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| 2011 GMC Acadia SLE 3.6L No Start VIN: 1GKKRPED8B Customer came in with a complaint of alarm keeps coming on and a no crank no start. The alarm seems to come on at any random point in time. Instrument cluster has delayed lighting when key is turned on and is not accurate, gas gauge shows below E and Batte... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2007 Chevrolet Silverado 3500 Classic LT 6.6L Electronic VIN: 1GBJC34D97 Good afternoon all, well this truck is fixed. What we found was when we checked the pin tension on the TCM connector. Found five cavities very loose! We reformed the connector cavities and the truck has been on the road for a week with no problem. Come winter ... |
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| 2016 GMC Sierra 1500 5.3L Front brakes VIN: 1GTR1LE00G Just about all of you were right. A new brake booster fixed this truck. As per some of the suggestions, we loosened nuts holding master cylinder to booster and front brakes released locked up position which confirmed booster was the cause of the lock-up. We ha... |
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