Ok I will remove the throttle body and give it a good cleaning. I will also clean the bore the IAC valve goes into and let you guys know if that helps or not.

Thanks for all the help and ideas so far it is really appreciated.

 

[QUOTE=swartlkk;564454]When they replaced the IAC valve, did they clean the bore that it goes into? If not, if could be getting hung up in the bore. I would remove the throttle body & give it a good cleaning.

I would suggest a round wire brush for this task