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P0455 Diagnostic Trouble Code Discussion for April 2011

EVAP System Large Leak

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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2004 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12F24
P0455: EVAP System Large Leak Detected. Hello there I have this cavalier here and it keeps throwing a large evap leak code. I have replaced the fuel pump assembly due to the evap line leaking at pump. I have replaced the evap purge solenoid. Also the small wiring harness is good to the solenoid. I h...
April 04, 2011
2002 Ford Escape XLS 3.0L MIL Lamp on VIN: IFMYU04212
P0455: EVAP gross leak. Hi. Smoked the system from service port, vapor hose near canister and the filler neck. Checked gas cap, replaced gas cap. No leak found. Checked vapor management valve and vent valve and hoses. No problem found. When I run EVAP self test w/scan tool it fails e...
April 18, 2011
2003 Chevrolet Silverado 1500 LS 4.8L MIL Lamp on VIN: 2GCEK19V83
P0455: EVAP System Large Leak Detected. OKY-DOKEY- this vehicle has been in and out for almost 2 years. oriinally it came in with eng lite on for o2 sensor slow, replaced and was ok for a while, then came in with misfire on entire right right side, if erased code would be ok until driven then would ...
April 27, 2011