Originally Posted by booblinker
My Moms 02 Taurus is overheating. I know its not the thermostat. When it overheats it leaks out of what look like a heater valve, which is right by the heater core. It only leaks when it overheats though. Basically what i want to know is could a bad water pump cause it to leak out of that when it overheats. Any other suggestion will help.
I'd try replacing that valve (so it doesn't leak) then refill the cooling system, bring it up to NOT (Normal Operating Temperature) and then make sure the cooling system is full.
It overheats because it's low on coolant (you put 1.5 gals in). It's low on coolant because it has a leak. Fix those and go from there.