temp switch/300 special m/3.5l,v6,24 valve.

The coolant temp sensor is located at the front of the engine to the left of the upper radiator hose, however, your problem is more likely to be the Radiator Fan Relay. The cooling system uses two fans. Both fans operate at two different speeds, low and high. Depending on engine coolant temperature and A/C system high side pressure, the fans operate at either low or high speed. The HI/LO and HI radiator fan relays are located in the Power Distribution Center (PDC) near the coolant recovery pressure container .