K&n CAI whistle problem????
#1
K&n CAI whistle problem????
I just installed a K&N CAI for my 2008 F-150, 5.4L V8. I love the throttle response, power, sound and increase in mpg that I got with it. The only issue is that I am getting a whistling sound, while driving, around 1000-1400 rpm. I checked the connections/fitting and they were all tight. I called K&N and they said that its prob the air passing over the throttle blade, and there is nothing I can do about it.. Anyone have this problem? If so, I am open to suggestions. Thanks....
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