Important: The thermostat is not serviceable separately. The thermostat housing (water pump inlet) and thermostat must be replaced as an assembly.

1. Drain the cooling system/engine block. Refer to Cooling System Draining and Filling .
2. Loosen the air cleaner outlet duct clamps at the throttle body and at the mass airflow (MAF) sensor.
3. Remove the air cleaner outlet duct.



4. Remove the radiator outlet hose.
5. Remove the thermostat housing bolts.
6. Remove the thermostat housing from the water pump.

Notice: Refer to Fastener Notice in the Preface section.




1. Install the thermostat housing to the water pump.
2. Install the thermostat housing bolts.

Tighten
Tighten the bolts to 15 N·m (11 lb ft).

3. Install the radiator outlet hose.



4. Install the air cleaner outlet duct.
5. Install the air cleaner outlet duct clamps at the throttle body and at the mass airflow (MAF) sensor.

Tighten
Tighten the air cleaner outlet duct clamp screws to 7 N·m (62 lb in).

6. Fill the cooling system. Refer to Cooling System Draining and Filling .