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Professional Automotive Repair Technical Discussions for March 28, 2019 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2001 Buick Regal LS 3.8L heater VIN: 2G4WB55K41 Vehicle has automatic heat, all new parts as mnetioned and completely flushed entire cooling system and bled system several times. vheicle has heat at idle but traveling down road it is like a/c is on. have to turn temp all the way to 90 for any heat at al... |
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| 1980 Cadillac Seville 6.0L left rear turn signal VIN: 6S699AE699 Does anyone know where the turn signal relays are located? Each center tail light has it's own turn signal relay according to the wiring diagram, and the left center bulb does not blink when the turn signal switch is operated or with the hazard switch turn... |
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| 2000 Chevrolet Astro 4.3L obd 2 monitors VIN: 1GNDM19W5Y Dose not complete Heater oxygen sensor monitor. |
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| 2009 Chevrolet Malibu LT 2.4L esc/traction VIN: 1G1ZH57B99 Originally had no assist with codes in steering module for torque sensor (C0545-00)and codes in EBCM for Disabled (c0561-71). Now steering works, no other codes in any module except U2143 in EBCM. Scanning EBCM shows no movement of steering wheel sensor A ... |
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| 1997 GMC C6500 Topkick C6H042 6.0L No Start VIN: 1GBJ6H1P1V OK this got towed in from our fleet customer. Have used my 15 wiring from mitchell to test. I have no spark and no injector pulse. I have all my powers and grounds. I have unhooked the four wire behind the distributor and still no spark. I have tested with... |
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| 2011 GMC Sierra 1500 SLE 5.3L Steering pump or gear box / rack VIN: 1GTR2TE35B "Sitting still" or moving at a slow speed, the truck will produce a "loud" humming sound and vibration. This will happen just after moving the steering wheel off center and continue to lock position going left or right and if you hold the wheel in any posi... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Chevrolet S10 2.2L No Start, Stall VIN: 1GCCS14582 There were many suggestions to check the computer power, grounds, and reference voltages, so I rechecked them. All were okay. I also checked all the outputs for shorts and found none. Then I again looked for wiring harness damage, which I had done before but o... |
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| 2011 Chevrolet Silverado 1500 LT 5.3L MIL Lamp on VIN: 3GCPCSE04B As everyone said it was the ECM, took three times to get a good one. I rechecked my powers and grounds, lighting a headlight with the ECM ground to the power supply circuits, I paid special attention to momentary loses of power, there was none. Thanks everyone... Trouble codes: P0604. |
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| 2006 Saturn Ion 3 2.2L Scan Tool VIN: 1G8AJ55F16 After a couple more checks I actually found that the female DLC connector pins were spread out too far and not making contact with the scan tool Male Pins. The Network wiring was also severed between the DLC Port and the Engine control module. I re-ran wirin... |
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