Heater Control Valve: Service and Repair

DUAL COOLANT FLOW VALVE







Removal and Installation

All vehicles
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Remove the engine air cleaner outlet tube.

Vehicles equipped with 3.9L engine
3. Drain the engine coolant.







4. Release the clamp and disconnect the upper radiator hose.

Vehicles equipped with 3.0L engine
5. Clamp off the 3 heater hoses at the dual coolant control valve.

All vehicles
6. Release the dual control valve hose clamp and disconnect the hose.
7. Release the LH heater hose clamp and disconnect the hose.
8. Release the RH heater hose clamp and disconnect the hose.
9. Disconnect the dual coolant control valve electrical connector.
10. Remove the dual coolant control valve bolt.
11. Remove the dual coolant control valve.
12. To install, reverse the removal procedure.
- Clean and lubricate the coolant hoses with plain water only, if needed.

13. Fill the engine cooling system.