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P0456 Diagnostic Trouble Code Discussion for May 2008

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2004 Jeep Wrangler Sport 4.0L MIL Lamp on VIN: 1J4FA49SX4
P0456: EVAP System Small Leak (0.020") Detected. ... Jeep tech. This vehicle has a intermittent reoccuring fault code P0456. The gas cap is new and the leak detection pump has been swapped out with known good one. It takes between two to three weeks for the code to reset and each time we retest the vehicle i...
May 15, 2008