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P0446 Diagnostic Trouble Code Discussion for December 2010

EVAP Vent System Performance


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Trouble Ticket Help Requests for DTC P0446
Help Request Posted
2005 Ford F-350 Super Duty XLT 6.8L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on, Running rich VIN: 1FDWF36Y05
P0446: Evap vent problem. ... break and driver said it just started running really bad and CEL was flashing. Customer knew of P0141 and P0446 codes and claimed they had been present for months. Truck also had P0300, P0301, P0306 and P0307. We had a set of...
December 01, 2010
2005 Ford F-350 Super Duty XLT 6.8L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on, Running rich VIN: 1FDWF36Y05
P0446: Evap vent problem. ... break and driver said it just started running really bad and CEL was flashing. Customer knew of P0141 and P0446 codes and claimed they had been present for months. Truck also had P0300, P0301, P0306 and P0307. We had a set of...
December 02, 2010