Just purchased F150 4X4
4.6L 2-valve V8
Installed new Motorcraft plugs & Denso ignition coils but 3rd.cylinder still misfires.
Old plug was solid black, but no oil or gunk.
What's next / Any suggestions ?

Thanks in advance,
Kip

Maybe fuel injector? Switch coils with another cylinder and the injector.

Welcome to the site...

If you repost your question in the 2004-2008 F-150 Forum you may have more luck with an answer.

Enjoy the ride and keep coming back...

Welcome!

Haven't tried swapping injectors yet,thank you Roadie

Welcome!