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P0440 Diagnostic Trouble Code Discussion for October 2014

General EVAP System Failure


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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
2001 GMC Jimmy SLE 4.3L Poor Idle Quality, Cuts out, Misfire VIN: 1GKDT13W51
P0440: EVAP System No Flow During Purge. Customers said problem occured after start up, no prior complaints, check engine light on runs rough at idle or under load, found codes PO122, PO155, PO300, PO440, PO452. Miss fire counts in history on #5 and #6 are 40 to 50k each other cylinders range from a ...
October 16, 2014