misfire at idle and 50-65

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08-17-2015, 11:56 AM

3vDonw

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misfire at idle and 50-65

hi here new to this forum i have 04 f150 5.4 3v 2wd i am not getting no code
i get a misfire at idle and @50-65 . i did plus bout 2mo ago

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08-17-2015, 10:58 PM

lewissa81

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misfire at idle and 50-65

Was the misfire there before you changed the plugs, or is this new?
Did you install Motorcraft or aftermarket plugs?
Did you replace the COP boots along with the plugs?

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08-18-2015, 12:24 PM

chayes627

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What lewissa81 said

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