Engine was replaced last year, Heater was blowing luke warm air only, temp gage was always little below half. drove through the summer without any problems. Other then that van runs strong. Last week I was on the highway going at 70MPH when fan belt snapped and van overheated, I replaced radiator, water pump, thermostat all belts and hoses. Filled radiator, it overheated and air is very cold from heater cores, front and back., hoses going to front heater core are colod.. I am ready to pour some gasoline on it and light it up. Please help.