The IAC (Idle Air Control Solenoid) is what controls your idle quality via a
controlled vacuum leak. It gets dirty quite often and I would recommend that
you clean it about every 10K miles (or at each tune-up..whichever comes first.)
I didn't mention the vacuum hose to the left of the MAP sensor (front of TB)
since you have to remove it anyway if you remove the TB from the vehicle.
Glad to hear it's running better for you. :)
- Bernd
> Bernd,
> I did like you said and removed the TB for a cleaning this past weekend
> (as mentioned in an earlier post). I removed all the sensors as well. Man,
> was the IAC nasty. I think it was the IAC - the one on the back with the
> plunger thing you told me not to turn. I cleaned the chamber it goes into
> and the plunger itself. It was REALLY dirty. My question is...what is the
> IAC? What does it do? That thing could not have been performing the way it
> should have. I'm extremely glad I took your advice and removed everything.
> Oh, and there was another hose connected to the TB you didn't mention
> removing. What is it? It's on the front of the TB. Again, sorry for all
> the questions...just trying to gain as much knowledge about things as
> possible so I know what I'm doing.
> Thanks!
> --Aaron--
> 95 DSRC 4x4 V6
> www.geocities.com/adakota4x4_95/
>
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