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P0455 Diagnostic Trouble Code Discussion for November 2009

EVAP System Large Leak


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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2005 GMC Yukon Denali XL 6.0L MIL Lamp on VIN: 1GKFK66U75
P0455: EVAP System Large Leak Detected. ... throwing code P0455 if u clear the light two days later its back,weve smoke tested this vehicle with a tech II to seal the system countless times after replacing various parts that looked like they were leaking weve replace the vent solenoid,purge solenoid...
November 04, 2009
1998 Hyundai Elantra 1.8L MIL Lamp on VIN: KMHJF24M9W
P0455: EVAP System Large Leak Detected. Had this code last week, tested and replaced purge control solenoid. It had no flow in either direction with or without 12V applied to it, so I figred I had it nailed. 2 Days later the MIL is back on with this same DTC. Should I smoke this system? I see no tes...
November 19, 2009
1998 Hyundai Elantra 1.8L MIL Lamp on VIN: KMHJF24M9W
P0455: EVAP System Large Leak Detected. Had this code last week, tested and replaced purge control solenoid. It had no flow in either direction with or without 12V applied to it, so I figred I had it nailed. 2 Days later the MIL is back on with this same DTC. Should I smoke this system? I see no tes...
November 20, 2009
1997 Ford F-150 4.6L MIL Lamp on VIN: 1FTDX18W9V
P0455: EVAP System Large Leak Detected. Have a P0455 code. Hooked up smoke machine and smoke comes out he sides of the new vent solenoid. Is this correct for venting the system? It smokes with power and ground applied and removed. This seems wrong. The hose off the bottom runs up the frame twards th...
November 24, 2009
2005 GMC Yukon Denali XL 6.0L MIL Lamp on VIN: 1GKFK66U75
P0455: EVAP System Large Leak Detected. ... throwing code P0455 if u clear the light two days later its back,weve smoke tested this vehicle with a tech II to seal the system countless times after replacing various parts that looked like they were leaking weve replace the vent solenoid,purge solenoid...
November 04, 2009
1998 Hyundai Elantra 1.8L MIL Lamp on VIN: KMHJF24M9W
P0455: EVAP System Large Leak Detected. Had this code last week, tested and replaced purge control solenoid. It had no flow in either direction with or without 12V applied to it, so I figred I had it nailed. 2 Days later the MIL is back on with this same DTC. Should I smoke this system? I see no tes...
November 19, 2009
1998 Hyundai Elantra 1.8L MIL Lamp on VIN: KMHJF24M9W
P0455: EVAP System Large Leak Detected. Had this code last week, tested and replaced purge control solenoid. It had no flow in either direction with or without 12V applied to it, so I figred I had it nailed. 2 Days later the MIL is back on with this same DTC. Should I smoke this system? I see no tes...
November 20, 2009
1997 Ford F-150 4.6L MIL Lamp on VIN: 1FTDX18W9V
P0455: EVAP System Large Leak Detected. Have a P0455 code. Hooked up smoke machine and smoke comes out he sides of the new vent solenoid. Is this correct for venting the system? It smokes with power and ground applied and removed. This seems wrong. The hose off the bottom runs up the frame twards th...
November 24, 2009