Thermostat: Service and Repair
Thermostat ReplacementRemoval Procedure
1. Disconnect the following electrical connectors:
^ Mass Airflow (MAP) sensor (1)
^ Intake Air Temperature (IAT) sensor (2)
2. Loosen the clamp at the air cleaner.
3. Remove the air cleaner bolts.
4. Remove the air cleaner.
5. Loosen the clamp (2) at the throttle body (1).
6. Remove the air cleaner duct (3).
7. Drain the coolant until the level is below the thermostat.
8. Loosen the inlet hose clamp at the thermostat housing.
9. Remove the inlet hose (1) from the housing.
10. Remove the thermostat housing bolts (2).
11. Remove the thermostat housing (1).
12. Remove the thermostat (3).
Installation Procedure
1. Install the thermostat (3).
2. Install the thermostat housing (1).
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the thermostat housing bolts (2).
^ Tighten the thermostat housing bolts to 30 Nm (22 ft. lbs.).
4. Install the inlet hose (1) to the thermostat housing.
5. Tighten the inlet hose clamp.
6. Install the air cleaner duct (3).
7. Position and tighten the clamp (2) at the throttle body (1).
^ Tighten the air cleaner duct clamp to 4 Nm (35 inch lbs.).
8. Install the air cleaner.
9. Install the air cleaner bolts.
^ Tighten the air cleaner bolts to 10 Nm (89 inch lbs.).
10. Tighten the clamp at the air cleaner.
^ Tighten the air cleaner duct clamp to 4 Nm (35 inch lbs.).
11. Connect the following electrical connectors:
^ MAP sensor (1)
^ IAT sensor (2)
12. Add coolant until the correct level is reached.