I have a cylinder on my 5.4L misfiring. It's a 2006 F-250. I am sure it probably a spark plug or coil. The pickup has 115000 miles and these are factory plugs and coils.
What do you guys recommend I do? All plugs and coils or find out what one is bad and just do that? Any recommendations for brands of plugs or coils?
Money might be an issue so I will probably end up just doing the bad one.
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