Heater Control Valve: Service and Repair

REMOVAL
1. DRAIN ENGINE COOLANT FROM RADIATOR

HINT: It is not necessary to drain out all the coolant.




2. DISCONNECT WATER VALVE CONTROL CABLE FROM WATER VALVE
a. Disconnect the control cable.




3. DISCONNECT WATER HOSES
a. Using pliers, grip the claws of the hose clip and slide the hose clip along the hose.
b. Disconnect the water hoses.

HINT: At the time of installation, please refer to the following item.
- Heater radiator pipe:
Push the water hose onto the heater radiator pipe as far as second ridge on the pipe.
- Water valve:
Push the water hose onto the water valve pipe till touching body of water valve.




4. REMOVE WATER VALVE
Remove the bolt and water valve.

INSTALLATION
Installation is in the reverse order of removal.




1. AFTER INSTALLATION, CHECK WATER VALVE OPERATION
a. Turn ignition switch to ON.
b. Operate temperature control switches to "MAX. COOL" and "MAX. WARM", then check that water valve operation, as shown in the illustration.
If operation is not as specified, next step.

2. ADJUST WATER VALVE CONTROL CABLE
a. Disconnect the control cable.
b. Turn ignition switch to ON.
c. Set temperature control switches "MAX. COOL".




d. Set the water valve lever on "COOL" position, connect the control cable and lock the clamp.

HINT: Lock the clamp while lightly pushing the outer cable in the direction, as shown in the illustration by an arrow.