P0440 Diagnostic Trouble Code Discussion for May 2017
General EVAP System Failure
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| Help Request | Posted | |
| 1998 GMC C1500 Sierra SL 5.7L MIL Lamp on VIN: 1GTEC14R7W P0440: EVAP System No Flow During Purge. ... came in with a p0446 so I went and had the check valve and the tank pressure sensor replaced. customer left 2 weeks later it cam back with a p440 code smoke it and found a leaking hose from charcoal canister to fuel tank replaced it did a evap bay test and... |
May 23, 2017 |
