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P0455 Diagnostic Trouble Code Discussion for February 2013

EVAP System Large Leak

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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
1997 Volvo 850 GLT 2.4L MIL Lamp on VIN: YV1LW5641V
P0455: Evap flow. evap check no leaks and hard to fill with gas, too slow kicks out nozzle at gas station. with canister out of system it holds pressure. have no smoke machine. I have replaced valve at rad fan...same results 455 code hoses good ...hope to not drop tank... read ...
February 12, 2013
2006 Chevrolet Express 2500 4.8L MIL Lamp on VIN: 1GCGG25V56
P0455: EVAP System Large Leak Detected. ... random multiple misfire code. Performed crank/cam variation and misfires have stopped. Addressed p0455 smoke evap system and ran service bay test with snap on solus ultra. Vehicle completely seals. Tested purge and vent seper...
February 15, 2013