5.4 is an awesome engine. I might still have used spare coils around here somewhere, it's one of those things that Ford guys have learned to be prepared for. Other than that, the only other engine issue is the spark plug blowing out of the head, and you can use a helicoil to fix that if it happens most of the time.
5.4 Fords is all I ran right up until I got my diesel. Now I have an '01 Super Duty 7.3. Trust me though, with the price difference between gas and diesel, there are a lot of days that I wish I had a gasser instead.
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