Well the thing I dont understand is that our fans is that they are supposed to be 2 speed ? I have a 160* t stat and at bout that temp my fan comes on , So where is the next speed ? When the fans on and I turn on the AC it does't change speeds , Is it supposed to ? I just changed the T stat out cause it was stuck open and when it was the Rad flowed really good , now that I put a new stat in I can tell when it opens but it flows really really slow . Should I take the new stat out and put it in hot water to tell if it open and closes the right way ? I'm sorry to blow you guys up with questions but I have a car I cant drive and its worrying the hell out of me . Thank you guys for the help