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P0456 Diagnostic Trouble Code Discussion for April 2007

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2003 Jeep Liberty Sport 3.7L MIL Lamp on
P0456: EVAP System Small Leak (0.020") Detected. ... even in the morning when it is cold. Passed smoke test, pulled line from intake, purge solenoid not leaking smoke. Car goes out comes back with about 2 weeks later with P0445 large leak or P0456 small leak. I think the pur...
April 29, 2007