Engine loses power under heavy throttle, misfire on cylinder 4 code

[60forty]

Putting a new coil on partly solved the problem. I'm guessing that a new set of spark plugs will get rid of the remaining hesitation. I'll update as soon as I get them installed.

Thank you everyone.

 

[Bazz270]

Be aware of spark plug broken in the head.
Use only genuine ford-motorcraft spark plugs