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Professional Automotive Repair Technical Discussions for July 9, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1975 Chevrolet C10 Cheyenne 5.7L transmission VIN: CCV145F309 Hey Guys,hope for some help here.I have a 1975 C-10 with a 350 trans and a 350 motor.Runs good but won't go over 51mph.Trans seems to shift only if you back off on accelerator,but it will shift.When you try to give it more than half throttle after it shifts to... |
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| 1999 Chevrolet K1500 Suburban 5.7L theft system VIN: 3GNFK16R1X I have this 99 suburban with a theft module problem and the module is no longer available from GM new or reman. Short story, I had the battery disconnected overnight and next day the truck would not start (start, stall, security light on). Tried to reprogram, ... |
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| 2002 Chevrolet Astro 4.3L No Start VIN: 1GCDM19X12 Vehicle came in on tow, checked fuel pressure and spark, had no fuel and no spark. Engine light dim and no rpm signal. Tested crank sensor and found no signal with lab scope. Replaced crank sensor and rpm and fuel returned, spark appears once and then dies out... |
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| 2007 Chevrolet Silverado 1500 Classic LS 4.3L power assist VIN: AGCEC14X87 When turning the steering wheel. either way, in park or driving, very pronounced vibration, very loud, p/s hoses vibrating badly. pump not vibrating. when not turning noise and vibration goes away but can feel the p/s hoses pulsing. fluid clean,full, no bubble... |
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| 2007 Chevrolet Tahoe LTZ 5.3L compressor VIN: 1GNFK13037 A/C compressor does not come on - it will operate when the relay is commanded on in functional test on Modis - HVAC module shows a B0158 code (ambient temp) ambient temp. reads 15 deg.f - GM bulletin says there is no ambient sensor for the A/C on this vehicle ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2008 Buick Allure CX 3.8L ABS Trac VIN: 2G4WF582X8 Yes We have repaired this car. Our scanner was not communicating so I went old school and HZ tested each speed sensor. Found wiring bad in the left front wiring harness. Thanks for the excellent tips!!! |
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| 2002 Chevrolet Suburban 1500 LS 5.3L Master cylinder VIN: 3GNFK16Z52 ended up shimming master cylinder with one washer on each side, booster is not adjustable. thanks to all who replied |
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