you can still use your k & n filter..just lightly oil it or run it dry..an oiled filter is used for like dusty areas and a dry filter is used for pavement type areas.

 

Picked up a can of cleaner this morning and did this. Took about 5 mins to do I used a T20 and it was the perfect size. It also cleared the code that I was getting after I got custom tunes from PHP. JackandJanett suggested cleaning the MAF sensor.

I have been trying to find a How to on cleaning the Throttle Body on the 04-08 5.4 and cant seem to find one. Did you make one Blue? or have a link to one

 

This is also in the Articles and How To section. Should help. Also, for more help, do a search using key words of throttle body.

https://www.f150online.com/forums/ar...ttle-body.html

 

I found that one but does not look like my engine bay (I could be crazy though) I don't see the fuel rail and mine does not have that rusty piece thing. Might be a different model year. I get the jist of it but there are a lot of hoses and plugs going to it and just wanted to know what they were before I started pulling them off.