I took mine off the car, filled it up with carb cleaner, covered the tubes with my fingers and shook it for a minute and poured out the nasty stuff. I repeated this until the fluid came out clean and made sure that the little plunger moved freely. I also used a screwdriver and a rag to wipe what parts of the plunger and surrounding areas I could reach. No problems since. This was almost a year ago.
I drenched mine in carb cleaned, used WD-40 on it as well, and got a small razor blade to get the junk off of the turning piece. It fixed my problem majorly. My car would stall everytime you pushed in the clutch, hasn't done it since. (knock on wood!)
i just walked in from cleaning my IAC and i'm hoping it solved my problem. my idle is really bad. i sprayed it down really good with electrical parts cleaner. when i started it up it still seemed a little rough, although i havent taken it out yet or kept it running for very long. i'll try later and see how it goes.
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