Have Ford Questions? Ask a Mechanic for Answers ASAP
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Thank you for asking your question on JustAnswer. The most common cause of the problem you are having is a defective Ignition coil. However, before replacing any parts, I always recommend proper testing first. If you need I can send the test procedures directly from Ford, in order to determine the exact cause.
Thank you for asking your question on JustAnswer. The test procedures are below in pdf format, (just click on the links below).
Misfire Detection Tests Click Here
Integrated Ignition Coil Pack A, B or C Failure Tests Click Here
Secondary Ignition Tests Click Here