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P0456 Diagnostic Trouble Code Discussion for March 2006

EVAP System Small Leak

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Trouble Ticket Help Requests for DTC P0456
Help Request Posted
2003 Jeep Liberty Sport 2.4L MIL Lamp on, Will not take fuel
P0456: EVAP System Small Leak (0.020") Detected. Mil Code P0456. After vehicle is shut down, and audible buzz seems to be coming from the fuel tank filler area (not air leaking out, but a motor of some sort). When the gas cap is released (new or old) a huge amount of pressure is blown out as well as fuel at ...
March 03, 2006
2002 Jeep Grand Cherokee Limited 4.0L MIL Lamp on VIN: 1J4GW58SX2
P0456: EVAP System Small Leak (0.020") Detected. Got one that stumps us all. Complaint is the chek engine light on. Hooked snap-on scanner got a PO456, evap small leak. Hooked up the smoke machine and seen smoke come out at the left rear corner panel. took a look and replaced the carcoal canister. Cleared co...
March 30, 2006