Ok so I was driving last night and my "!" light came on and my temp gauge jump all the way into the red. I don't think it was my thermostat because the didn't cool when I was idle'd or driving. So I parked it for about an hour. When I started it again it rode good for about 10 min and started doing it again. So I stopped the car put the heater on, no more than 5 min later it cooled all the way down and rode fine. My buddy says it could be the waterpump but I don't. Any help is definatly appreciated, thank you!