Okay I have ben driving the darn thing since my last post It still wants to overheat, I didn't try the purge thing. I will now, I am looking for the little nipple thing and I see one that has a black nipple doesn't look like a nut, but almost like a valve stem cover, would that be it, it comes off by pulling it off??? Please let me know I appreciate your help. I can't afford a mechanic right now!