New '08 4x4 owner,misfired up :(

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04-30-2014, 09:00 PM

kip24

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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

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04-30-2014, 09:11 PM

Roadie

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

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04-30-2014, 09:23 PM

jdruzik

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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...

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