TSB fix for codes P0456, P0455, P0457 on Ford Fusion

Diagnose and fix evaporative emissions 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 on the vehicles listed below. These codes P0456, P0455, P0457 on Ford Fusion and other trouble codes will cause the check engine light to come on. 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 on Ford Fusion as well as codes P144A, P2196, P2198, or P1450.

Inspect the evaporative emissions canister by 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.

Purge Valve

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

Learn more about evaporative emissions systems and how they work

©, 2015 Rick Muscoplat