K&n ?
#1
K&n Help?
I just bought a K&N FIPK system for my 01 F 150/5.4 and now theres a hissing sound coming from the intake. I've checked everything making sure it was tight and made sure it was on right. Does anyone have this same problem and how to stop it?
Last edited by Chrs_Brks; 08-27-2006 at 04:10 PM.
#2
I have the same intake on my 2000 F150 5.4 It's the FIPK II. When I have the hood open I notice that same kind of louder hissy type sound, but its not noticeable at all when I have the hood down. Of course when I drive you hear the intake suck in air and its louder than the stock system, but I believe thats completely normal. What you're describing seems to be the same sort of thing? Plus i know for a fact there are no leaks on mine or any problems. I think its normal.
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