[CREWZIN]

Jimbo,

As SRG said, there's been issues where the fan motor burned out...including mine. To check, turn the car on without the air-conditioning. The fan should be off. Turn the air-conditioning on and the fan will come on no matter what the temperature of the water is. It's hard to see the fan blades so you might need a flashlight.

On normal driving without the air-conditioning, the fan only comes on when the water temperature is at a certain degree and your below 35mph. Above 35 and the fan cuts off and lets the incoming air cool the water.

To me, it sounds like the thermostat stuck closed for that one time.