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Code PO455 EVAP Emmission Control System leak (Large) fir 2010 Mercury Mariner. How to fix it?

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The OBDII reports Code PO455 - EVAP Emission Control System Leak (Large). How can I fix this issue? I don't see the EVAP Emission Control System diagram under the hood.

Vehicle: 2010 Mercury Mariner - 4 cyl. 2.

1 Answer

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Hi there,

In most cases the evap vent control valve is the culprit, but it's best to have a smoke test done to find the leak in the system, then do the repair to save some money.

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