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P0455 Diagnostic Trouble Code Discussion for October 2007

EVAP System Large Leak

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Trouble Ticket Help Requests for DTC P0455
Help Request Posted
2001 Dodge Ram 2500 Van 5.9L MIL Lamp on VIN: 3B7KF26Z71
P0455: EVAP System Large Leak Detected. ... time. Truck came in to shop with MIL on, no other symptoms. Codes P0442 and P0455 present. Visual inspection of system and related found no problems. Clear codes and force PCM to command an EVAP monitor test. Code P0455 returns. I did this test numerous ti...
October 12, 2007
2003 Dodge Ram 1500 SLT 4.7L MIL Lamp on VIN: 1D7HA18N43
P0455: evap system leak large. it took a few days to come on, more then 2 trips. i have the truck again and the same three codes as the first time are there and also they are coming up pending as well as mil request. i hate to ask such a stupid question here folks but i have no evap smoke t...
October 30, 2007
1998 Volvo V70 2.4L MIL Lamp on VIN: YV1LW5542W
P0455: fuel tank system small leak. hi folks i have this car with p0455 code evap system small leak. i have check the purge valve and it works fine computor turns it on and off as it should. i have smoke cked the system and found no leaks. did find rollover valve stuck shut i repaired still no l...
October 30, 2007