mmmm sounds like u need to bleed the rad as ther is air in the rad run the car with the rad cap of and check to see if ther is a tap on the rad releas the tap off to get rid of the air that maybe trap in the head and rad u will see in the bottle wher u fill the car up with water should flow round nice if not you have a jamed thermastat sorry cant spell lol hope this help let hope you havent do the head gasket or crack head ? make shore u have hot air coming out of ur blowers in side the car mate k. dazza <_<