novfx4

so i just bought a cold air k&n intake, after installing it and following all directions, i turn it on. it was running just fine. i turned the car off and made sure everything was tight and good to go, i touched the maf sensor and made sure it was plugged in good, i turned it back on and it begins idle really funny going in and out and turning off eventually.

i took the car to ford before i screw anything else up and they want 80 to check it out and possibly another 280 plus labor for the maf sensor- if that is the problem.

shotgun

What engine? What year?

What did K&N say when you asked them?

Any codes?

Is it under warranty?

techrep

iTrader: (1)

did you over oil your new filter or is it a dry filter...too much oil on your filter will interfer with the maf sensor operation... did you see a cel...if its the oil on the maf...pull it out and clean it with some carb cleaner...

cajunboy2208

I had the same problem when I 1st installed my K&N too.
I figured it out pretty quickly. The gasket and the ring that I installed by the TB was sticking out. Had to remove it all and place it in correctly.
Could be the same for you... but maybe not.

Mod (Ret.)

A new kit would not require any oiling of the filter, so lets hope that's not the case.

Check all clamps for looseness; sounds like an air leak.

novfx4

its a 2006 f150 fx4 5.4l, it was a used kit and it was reoiled before..., but i dont know if that is it for sure, carb and choke cleaner will clean it off? and it will work properly after cleaned with carb and choke cleaner?

shotgun

If it doesn't, put the stock intake back on the truck. If the problem is still there, then you may have damaged the MAF.

stmar

Does K N make a dry filter for a 2005 4.6L? Do you know the part number? Is it as good as the oiled?

shotgun

http://www.knfilters.com/search/appsearch.aspx

novfx4

has anybody here installed the k and n intake does the gasket go between the adapter and motor or between the throttle body and adapter?