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2004 to 2008 F-150 and Mark-LT
4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs.


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Old Sun, April 17th, 2011, 12:11 PM
Westcoast Westcoast is offline
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Default K&N Cai squeal

My K&N has a squeal (sounds like a squeaky bearing) that is driveing me nuts It happens on light acceleration. Does anyone else have this problem? Is there a fix?
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Old Sun, April 17th, 2011, 12:42 PM
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Longshot270 Longshot270 is offline
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You can either try to find an effective air dam or just switch back to stock. It is just a natural effect of the setup. That is why your stock intake had the big resonator and a narrow snorkel, so that that sound would not reach the cab.
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