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Kenny Z.
Kenny Z., Ford Senior Master Tech
Category: Ford
Satisfied Customers: 5439
Experience:  Auto Trans, Drivability and Electrical Specialist
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Merc 2010, mountaineer, "check fuel filter" warning light

Customer Question

Merc 2010, mountaineer, "check fuel filter" warning light came on. Ford wants $100 to run a diagnostic on the car before fixing it. What is really needed? Any info would be appreciated.
Submitted: 2 years ago.
Category: Ford
Expert:  Kenny Z. replied 2 years ago.

Hello, my name is***** and thanks for your question.

I am going to assume the message is check fuel filler, not fuel filter. There is no message for the fuel filter. The most common causes for this message are the canister purge valve or the filler neck not sealing properly. There really is no way to determine which one is failing without running an evaporative emissions test to determine the cause. Certain equipment is needed to perform the tests.

Expert:  Kenny Z. replied 2 years ago.
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