Idle Air Control valve

[clarks2001]

I have looked thru some threads about cleaning the IAC and I can't find what people are using to clean it. So...whats everyone use to clean the IAC?

 

[robert.harju]

Hmmm

I read on another posting that people are using simple "Electrical Contact" cleaner to get it degunked... the kind that leaves no residue behind as to not impeed the reading.

 

[Somerlot]

Are there any particular things to be weary of when cleaning the IAC with the electric contact cleaners? I am going to be cleaning (received a Check Engine code) and I don't want to damage anything.

 

[hansvdweerd]

Are there any particular things to be weary of when cleaning the IAC with the electric contact cleaners? I am going to be cleaning (received a Check Engine code) and I don't want to damage anything.

I used brake cleaning fluid and allowed the valve plenty of time to dry. It didn't do the trick for me, because the problem wasn't IAC-valve related in the end, but it also didn't damage anything.

 

[thepotroast]

Take it off, spray it good inside with the electrical contact cleaner, and start gently scraping all the gunk out of it. I had a lot of carbon buildup in mine. Inside of it, it's purely mechanical. There's a couple of rubber boots covering the pistons that move up and down. Just get all the crap out of it and hopefully it clears your code.

 

[imp]

My '04 4.0 OHC seems to have NO IAC valve. What's up with this, and if I'm right, when did they eliminate it?

I can see that by driving the throttle plate with a motor, instead of accelerator-pedal cable, (drive-by-wire), allows PCM to open throttle very slightly for idle purposes, thereby making IAC redundant? imp

 

[04al]

for 04 explorer the IAC was eliminate, the TPS now controls the throttle. (drive-by-wire)

 

[imp]

for 04 explorer the IAC was eliminate, the TPS now controls the throttle. (drive-by-wire)

Thank you for that! I thought 2002 and up were all alike, basically. imp