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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 15, 2019
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Open Help Requests for GM
Help Request Answers
1997 Chevrolet Tahoe LS 5.7L No Start VIN: 1GNEK13RXV
This is my shop truck that pushes snow and dead vehicles into the shop. It has a no start condition with no codes. It cranks over and will try to fire up when cold for a couple of seconds and continue to crank over with no fire. But when you release the ke...
2004 GMC Canyon SLE 3.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GTDT13644
Truck came in running rough. Code P0300 engine misfire, watch misfire data and cylinders #4 & 5 are constantly misfiring. Checked fuel pressure, 62psi. Swapped plugs and coils from 2 & 3 to 4 & 5, miss stays on 4 & 5. Checked compression on 3, 4, & 5, all ... Trouble codes: P0300 (engine misfire)

Fixes & Summaries for GM
Fix/Summary Answers
2010 Chevrolet Equinox LT 2.4L Rdcm VIN: 2CNFLNEW4A
After determining all the communication lines were working correctly. We noticed that the enable feed to wake up the module was only showing 8 volts . Finally traced the wire to the left front driver compartment under the carpet . There is a plastic conduit th...
2003 GMC Sierra 3500 SLE 6.6L Cuts out VIN: 1GTJK33163
Thanks to everyone for their help and time I have used a vantage scope and scoped powers and grounds at the FICM and all looked good. Those T pins that Glenn mentioned worked good for back probing connectors. Also scoped cam and crank sensors checked power a...
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