misfire

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12-30-2014, 03:41 PM

3tbell@gmail.com

Junior Member

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Join Date: Aug 2013

Posts: 2

misfire

misfire on #6 cylinder 5.4l v-8 2000 year model, evens out @2000 rpm's replaced coil,injector, and spark plug. any idea on what is going on, oh yea it is an f-150

12-30-2014, 06:33 PM

hanky

Senior Member

Join Date: Jun 2010

Posts: 14,647

I would suspect either an intake manifold gasket problem or possibly a cracked plastic intake manifold. It does not have to be one of those , but something to check.