Thermostat: Service and Repair

REMOVAL PROCEDURE
1. Disconnect the negative battery cable.

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

2. Remove the engine cover.
3. Drain the cooling system. Refer to Draining and Filling Cooling System.





4. Disconnect the inlet radiator hose.
5. Remove the thermostat housing.





6. Remove the thermostat (4).
7. Clean the gasket mating surfaces.

INSTALLATION PROCEDURE





1. Install the thermostat (4).
2. Install the thermostat housing (2).
3. Install the thermostat housing bolts (1).
^ Tighten the thermostat housing bolts to 20 Nm (15 ft. lbs.).

NOTICE: Refer to Fastener Notice in Service Precautions.





4. Install the inlet radiator hose.
5. Refill the cooling system. Refer to Draining and Filling Cooling System.
6. Install the engine cover.
7. Connect the negative battery cable.
^ Tighten the negative battery cable bolt to 15 Nm (11 ft. lbs.).