2008 f150 5.4l runs smooth at speed sometimes st idle it runs rough. When I rev the engine the rough idling goes away for awhile

Asked by Jan 19, 2017 at 12:41 PM about the Ford F-150

Question type: Maintenance & Repair

3 Answers

92,525

I am guessing you need a tuneup or that a coil is going bad. Is the CEL on?

Recently tuned up. Problem existed before and after tuneup.

Recently tuned up. Problem existed before and after tuneup.

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