Thermostat: Service and Repair

Thermostat - 4.0L SOHC

Removal and Installation

1. Drain the engine cooling system.

2. Remove the air cleaner outlet tube.

3. Remove the generator wiring harness bracket nut and position the wiring harness aside.






4. Remove the upper radiator hose.






5. Remove the bolts, water outlet adapter, and thermostat.
- Inspect the O-ring seal, install a new O-ring seal if necessary.






6. To install, reverse the removal procedure.