I don't like the way this is going. The heater core is the highest point of the system. If you haven't been checking the coolant and keeping it full, that would probably explain the overheating. I am concerned that you seized the engine.
The spark plugs need to come out and then the engine needs to be turned over by hand using a breaker bar on the crank pulley nut. If it doesn't turn by hand, loosen/remove the serpentine belt and try it again. If it still doesn't move, my fear is the engine is seized.
Wednesday, August 22nd, 2007 AT 5:06 AM