Thermostat Housing: Service and Repair

Thermostat Housing - 4.0L SOHC

Exploded View, 4.0L SOHC (1 Of 2):

Exploded View, 4.0L SOHC (2 Of 2):

Removal and Installation

1. Drain the cooling system.

2. Remove the Air Cleaner (ACL) outlet pipe.

3. Remove the Throttle Body (TB).

4. Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector.

5. Disconnect the upper radiator hose from the thermostat housing and position aside.

6. Disconnect the heater inlet hose from the thermostat housing and position aside.

7. Disconnect the bypass hose from the thermostat housing and position aside.

8. Remove the 3 lower thermostat housing bolts and the thermostat housing.
- To install, tighten to 12 Nm (106 lb-in).

9. To install, reverse the removal procedure.

10. Fill and bleed the cooling system.