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P0455 Diagnostic Trouble Code Discussion for October 2008

EVAP System Large Leak

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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2005 Chevrolet Silverado 2500 HD 6.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCHC24U95
P0455: EVAP System Large Leak Detected. Vehicle came in for check engine light on and engine overheating. Found to have a bad fan clutch and evap vent valve--replaced and retested good. Now on to the Random missfire P0300. Miss fire detected on all cylinders, fuel trims look good, no vacuum leak fro...
October 08, 2008
2005 Hyundai Sonata GL 2.7L MIL Lamp on VIN: KMHWF25H15
P0455: EVAP System Large Leak Detected. ... on and code p0455 large leak detected, smoked the evap system and found evap vent solenoid not closing causing leak replaced with factory solenoidand cleared code. vehicle came back 2 days later with same problem code p0455 large evap leak detected. resmok...
October 13, 2008
1998 Volvo S70 2.4L MIL Lamp on VIN: YVILT56D4X
P0455: evap leak. Hi Guys We had this Volvo in with a po455 evap leak DTC, Did a smoke test everything check ok in the process of the test I removed the fuel cap no smoke came out of the filler tube and the tester held pressure. I removed the line from the canister that goes to...
October 28, 2008