Originally Posted by Drg racr
My dad's 2000 Sable did the same thing. It ended up being the water pump. The impeller actually rusted away. I hear it's very common for the Fords, and it's partially caused by the Dexcool coolant. Replace the water pump, flush it really good, and stay away from Dexcool.
I would never out GM dexcool in a ford, and i think it is the pump. Beacuse the upper hose aint getting hot, but its not overheating.