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Professional Automotive Repair Technical Discussions for October 29, 2024 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 | |
| 2018 Chevrolet Colorado LT 3.6L Fan VIN: 1GCGT9EN9J Esta camioneta al abrir switch automaticamente enciende los ventiladores, no hay codigos, revisamos cableado de ventilador hacia computadora, se reviso softwere para actualizacion pero ya tenia la ultima actualizacion. |
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| 2000 GMC W4500 Forward W4S042 5.7L MIL Lamp on VIN: 4KDC4B1R2Y This vehicle is new to me. It came in with a lack of power and the check engine light on with code P0172. When I reviewed fuel trim data, I found the fuel trims combined around negative 20% at idle and around negative 35% at cruise. I found the fuel pressu... Trouble codes: P0172 (System rich bank 1), P0175 (System rich bank 2) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2016 Chevrolet Equinox LT 2.4L Poor Fuel Economy, MIL Lamp on VIN: 2GNALCEK9G REPLACED THE INTAKE MANIFOLD, PCV PORT WAS DRILLED TO 1/4". REPLACED INJECTORS WITH CORRECT PART NUMBER. Trouble codes: P0172 (Fuel trim rich b1). |
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| 2015 GMC Sierra 3500 HD 6.6L Hesitation, Turbo learn issue VIN: 1GT321E80F Thanks for the feedback. The desired vs actual values for the turbo data looked good. We ended up performing the relearn with a MODIS. The MODIS didn't have 2015 software, but it communicated just fine and performed the relearn just fine. |
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