Ford Truck Enthusiasts Forums - View Single Post - 2010 5.4 valve train noise.
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Old 12-08-2013, 05:06 PM
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nojoke327 nojoke327 is offline
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I had a very similar noise and I thought it was a phaser but it turned out to be a bad catalytic converter. It could also be a exhaust manifold leak as my first set of leaking manifolds sounded very similar. Is there any way you could post a sound clip or video.
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