this is the deal, im driving my hatch which is single cam v at the moment and my car over heats and its cool as fuck outside and im doing bout 65-70 on the interstate.... well i go home and check out the damage and the radiator is steaming out the cap, so i let her cool of and come back to it a hour later, start my hatch and it over heats again but now i have no heat blowing threw my vents at all, im wondering if this is a water pump problem or thermostat or heater core??? immmmmm not deffinitly sure what it could be and i figured i would ask the nice people on drag for some info or suggestions before i blow a stack of money replacing parts i didnt need to, ima dohc guy and this scenario has never came my way so please help if you have any answers THANKS