Location of Components
The heater system consists of the following parts.
1.Water valve
2.Heater core
3.Blower (motor, fan)
Construction
1.Water valve
(1)Description
The water valve is installed in the engine’s coolant circuit and controls the amount of engine coolant that is allowed to enter the heater core.
The driver operates the water valve by moving the temperature selector on the control panel.
Some recent models do not have a water valve. In such models, the engine coolant constantly flows through the heater core.
2.Heater core
(1)Description
Engine coolant (approx. 80