Quote Originally Posted by Aggie07 View Post
I only notice the slight fluctuation in RPMs when the AC compressor kicks on and off. Have you tried cleaning the IAC valve to see if that has any affect?
Sorry, I was not implying that your A/C could be the issue. I was simply stating that is about the only time my RPMs fluctuate, which is normal.

My suggestion was to clean your IAC valve, or like Matt said, get a new one if you have high mileage already.