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P0456 Diagnostic Trouble Code Discussion for December 2011

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2004 Jaguar Vanden Plas 4.2L MIL Lamp on VIN: SAJWA74C64
P0456: Evaporative very small leak. My concern is the Evap codes. They will reset in 3-4 days of driving.I have tested the gas cap. I have smoke tested this vehicle Evap system. I can not find the leak. It loses pressure but no smoke shows up anywhere. I even tried smoke testing from the gas fil...
December 02, 2011
2003 Dodge Grand Caravan ES 3.3L MIL Lamp on VIN: 1D4GP24293
P0456: EVAP System Small Leak (0.020") Detected. ... guru's. I have this 2003 Grand Caravan that keeps setting DTC p0456. I have smoked the evap system 5 times already and can find no leaks what so ever. The customer has replaced the fuel cap and purge solenoid and I have replaced the LDP. But the code comes...
December 08, 2011