Ford Repair Questions? Ask a Mechanic for Answers ASAP
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.