What is IAC filter next to Throttle Body??

[andrewterri]

I have wondered what this small filter is that looks steel wool. I knew it was there and the manual talks about cleaning it but don't know what the heck it does. From what i can tell air does not go through it so whats the point? Mine has what looks like small pieces of grass in it along with dirt so i know i need to order a new one. Not sure it i can blow it out. What do you guys think? Thanks in advance

 

[QBhoy]

Hi. It just that. It’s an interface between the outside works and the intake side of the throttle body. Just a wee barrier. If it’s dirty or oily. Change it. They are cheap as chips. You’ll be hunting and the IAC will be working hard if it’s reatricted.

 

[andrewterri]

how is there air passing through it and where is it going? what does IAC stand for?

 

[Bt Doctur]

Idle Air Controler. meters the air to change idle speed as called for by the ecm

 

[andrewterri]

Got it. Thank you guys. Now that makes sense why there is a filter there.