This weekend I pulled out my IAC valve to clean it up after my car failed to start up after cranking it several times. I think the IAC got stuck....it was freaking dirty.

Now that makes me wonder....is there any other valves such as the IAC that I need to take out and clean. I never knew I should have been cleaning the IAC...I had a honda previously and never had to do this on it. Anyway, please let me know of any other valve systems that I need to maintain.

Thanks