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Kenny Z.
Kenny Z., Ford Senior Master Tech
Category: Ford
Satisfied Customers: 5235
Experience:  Auto Trans, Drivability and Electrical Specialist
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o4 ford expedition. p0306 and p0316.

Customer Question

o4 ford expedition. p0306 and p0316.
Submitted: 5 years ago.
Category: Ford
Expert:  Kenny Z. replied 5 years ago.
Hello and thanks for your question.

I would clear codes and swap the coil and plug with a different cylinder. Drive it until the code comes back. If the code moves to the cylinder you moved the coil and plug to, then replace that coil and plug. If it stays on #6 then double check that the injector is firing. The next step after that would be to check compression. Its usually a coil.
Customer: replied 5 years ago.
installed new coil and spark plug. unit run great. thanks for the help!
Expert:  Kenny Z. replied 5 years ago.
Your welcome. Thanks in advance for the accept!
Expert:  Kenny Z. replied 5 years ago.
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