Question about 2001 Ford F150 Styleside SuperCrew

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My 2001 F-150 is running rough.

It acts like it is missing and idles at different speeds while it is running

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  • hair6464 Jan 19, 2009

    Not that I have read yet. The problem just started and I have not had time to explore it completely yet

  • Paul Broadhurst May 11, 2010

    Are there any trouble codes?



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If its the 4.6 with the COP (coil over plug) design ignition system, run it until it throws an engine code (light). Take it to the nearest Autozone. They do a free diag check with an OBD2 scan tool. If it's the same as my truck it most likely is a failing coil, the scan will tell you the cylinder and they print out the cylinder numbers on receipt paper. Pick up a motorcraft coil for around $55 throw it in yourself in the parking lot. They can clear the code for you once switched out. Saves around $300 instead of going to the dealership. Or, pick up your own OBD2 scanner from the friendly mac tools supply truck. It's around $50, but is well worth it in the long run.

Posted on Jan 29, 2009


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Engine missing is a vast subject and calls for number of things to examine. What are the problem symptoms? Is it concerned with one or more of the following?
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Please mention if there is some other symptom.

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