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Professional Automotive Repair Technical Discussions for September 14, 2023 International Automotive Technicians' Network (iATN) - Members Only |
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| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
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Open Help Requests for GM
| Help Request | Answers | |
| 2020 Chevrolet Silverado 6500 HD 6.6L No Start, Stall VIN: 1HTKJPVMXL desired fuel pressure is 60 but with truck running is about 20 psi and sometimes drops to 0 and truck dies. i can command fp on with gds2 and runs up to 80 psi but when i start truck it drops to 0 and truck dies. i load tested wires from driver to pump wit... Trouble codes: P018B, P228C, P129F |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2019 GMC Sierra 1500 AT4 5.3L Fuel Gauge VIN: 1GTP9EED3K Prodemand has the pin numbers listed wrong for this truck for the high speed LAN wires to the ecm, they list the correct pinout for an L3B engine. Using the GM diagrams on identifix, I found that I had no resistance on the wires going to the FPDM. I did verify... |
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