New '08 4x4 owner,misfired up :(

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Apr 30, 2014 | 09:00 PM

kip24

Thread Starter

Junior Member

Joined: Apr 2014

Posts: 7

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New '08 4x4 owner,misfired up :(

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

Apr 30, 2014 | 09:11 PM

Roadie

Senior Member

Joined: Jan 2002

Posts: 5,994

Likes: 221

From: Wilmington,NC

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

Apr 30, 2014 | 09:23 PM

jdruzik

Senior Member

Joined: Oct 2008

Posts: 2,707

Likes: 2

From: Glide, OR

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...