Quote Originally Posted by Blown97 View Post
I like the idea of a vacuum leak when it's cold, but I think the possibility is greater that there is a problem with the Idle Air Control Valve (IAC).

It's worth taking off and inspecting. Make sure to get some TB cleaner and clean the pintle on the IAC as well as the IAC passages in the TB.
Good call thats what I was gonna say...or like I have suggested many times before...it could be a MAF going south on ya...but then you said it was only 3 times a month so idk...

Maybe your car is just on the rag

jk