car started running hot before i got to my g/f house. Never done it before, i was in bumper to bumper traffic. I pulled over and let it cool down, untill i could get it off the interstate. I made it to a gas station and parked there for a while and let it cool down, so i decided to drive it all the way to my g/f's house and it would go from where it should be to hot and back down again. So what's that sound like, thermostat?