P0455 Diagnostic Trouble Code Discussion for August 2019
EVAP System Large Leak
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| Help Request | Posted | |
| 2003 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2GCEK19T63 P0455: EVAP System Large Leak Detected. ... random misfire, and evap issues. I found the vent solenoid was bad, would not close. the wiring tested fine so I replaced it. Looked over the basic engine data quickly and nothing jumped out at me. I did a baseline compression test before I sunk too mu... |
August 30, 2019 |
