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Professional Automotive Repair Technical Discussions for January 3, 2025 International Automotive Technicians' Network (iATN) - Members Only |
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Fixes & Summaries for GM
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| 2005 Chevrolet Silverado 1500 4.8L Poor Idle Quality, MIL Lamp on VIN: 1GCEC19V25 Thanks for all the replies. James nailed it on the head. Fuel injectors. Fuel trims were -17 to -20 LT. What we ended up going was isolating the fuel rail, monitoring pressure while it heat soaked. Found the rail was loosing fuel pressure. Lifted the rail ... Trouble codes: P0172, P0175, P0300. |
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