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Professional Automotive Repair Technical Discussions for September 18, 2018 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1985 Chevrolet Corvette 5.7L Poor Idle Quality, Hesitation, Cuts out VIN: 1G1YY0781F Hey guys, I have this corvette and it is giving me a mass air flow code. check for power going to the mass air flow from the power relay. I can't find anything to tell me where the power relay is located so I can check my wire there and so on and so forth.... Trouble codes: 33 (mass air flow signal) |
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| 1999 Chevrolet Silverado 1500 5.3L ABS module VIN: 2GCEK19T2X ABS light on no trouble codes, ABS data shows light is commanded on. Have replaced unit with another unit from a donor vehicle with the same results. Also have swapped cluster from donor vehicle and no change. Vehicle has not been modified from OE. D... |
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| 2016 GMC Sierra 1500 5.3L Front brakes VIN: 1GTR1LE00G The front brakes lock up after a few blocks of driving and stopping. when symptom happens, pedal is hard and both front wheels are locked up. We drove truck and when symptom started to show gradually as we drove, we drove truck into shop, lifted rear of tr... |
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| 2007 Hummer H3 3.7L Timing chain VIN: 5GTDN13E47 Good evening. I have a good one in the shop now. This Hummer came to me with a rattle in the front (sounds like a diesel) Anyway suspected timing chain or phaser issue. Pulled the engine and put the 3.7 on a engine stand and removed the timing cover and oi... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2011 Chevrolet Malibu LS 2.4L engine tick VIN: 1G1ZB5E1XB THE FINAL FIX WAS REPLACEMENT OF THE INTAKE CAM PHASER [TIMING GEAR] THIS WAS AN ODD FAILURE AT THE LOW MILAGE OF THE CAR . EVERYONE WAS LEANING TOWARDS AN OIL ISSUE , FLUSHING , SLUDGE OR OIL PUMP . THE ENGINE WAS CLEAN ENOUGH INSIDE TO EAT OFF , THE PHASER W... |
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