Thermostat: Service and Repair

Thermostat


Do not remove the pressure cap while the system is hot or under pressure. Serious burns from coolant can occur.

Removing






- Disconnect the negative battery cable.

- Drain the cooling system. Refer to => [ Cooling System Draining and Filling ] Cooling System Draining and Filling.

- Loosen and reposition the radiator upper hose clamp at the thermostat housing (1).

- Remove the radiator upper hose from the thermostat housing (1).

- Remove the thermostat housing bolts (2).

- Remove the thermostat housing, thermostat, and gasket.

Installing






- Clean the thermostat housing sealing surfaces.

- Install the thermostat and gasket into the thermostat housing. For ease of installation, install the bolts into the housing for thermostat and gasket retention.

- Position the thermostat housing to the intake manifold. Tighten the thermostat housing bolts to 12 Nm (106 in lbs).

- Install radiator upper hose to the thermostat housing (1).

- Position and Tighten the radiator upper hose clamp at the thermostat housing (1).

- Fill the cooling system. Refer to => [ Cooling System Draining and Filling ] Cooling System Draining and Filling.

- Connect the negative battery cable.