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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 29, 2019
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Open Help Requests for GM
Help Request Answers
2007 Chevrolet Suburban 1500 Z71 5.3L MIL Lamp on VIN: 3GNFK16347
We got this car this morning with mil on (p0446), i test the vent and purge valve test out good. Smoke test the evap hoses no leaks were found, how ever after getting more information, customer stated that is hard to refuel. We remove the gas tank to inspe... Trouble codes: P0446 (Evaporative Emission Control System Vent Control Circuit Malfunction)
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...

Fixes & Summaries for GM
Fix/Summary Answers
2014 Chevrolet Malibu Eco 2.4L radio goes blank VIN: 1G11C5SL1E
This stop start system is new to me. It switches battery power to the main battery and to the auxiliary battery on stop start events. Testing the battery side with a lab scope showed no fault. Further research showed that the radio is shut off on start powe... Trouble codes: P305F.
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