Rick's Free Auto Repair Advice

P0456, P0455, P0457 Ford

Diagnose and fix trouble codes P0456, P0455, P0457 on a Ford

Ford has issued a service bulletin #11-11-28 to address a problem with the evaporative emissions system setting P0456, P0455, P0457 and other trouble codes. The bulletin applies to the vehicles listed below

2010-11 Fusion, Milan
2009-11 Escape, Mariner

The bulletin refers to the above vehicles equipped with either the 2.5L or 3.0L engines built before 3/4/2011. The problem is a leaking or stuck evaporative emissions purge valve. The leaking/stuck valve can set any of these trouble codes P0456, P0455, P0457, P144A, P2196, P2198, or P1450.

Inspect the evaporative emissions canister for removing it and turning it over and checking for signs of liquid fuel. If the canister is leaking, replace it with the part numbers listed below.

If P0456, P0455, P0457 are the only codes present do a leak test and repair any leaks. Then replace the underhood purge valve.

P0456, P0455, P0457

Purge Valve

9U5Z-9C915-H Canister Purge Valve
9R3Z-9C985-B Canister (Escape/Mariner)
9E5Z-9D653-C Canister (Fusion/Milan)

©, 2015 Rick Muscoplat

Posted on by Rick Muscoplat

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