The same system also sends heated coolants through the heater core. The heater core is located in the dashboard and sends warm air into the car’s cabin once you turn on the heater. Using the controls ...

A heater control valve regulates the flow of coolant through the heater core and gets the warm air to your cabin when desired. If this valve malfunctions, it can either restrict or entirely block ...

Heater Fan/blower Motor Issues Even if hot coolant is reaching the heater core, the heater fan —or blower motor— is responsible for distributing warm air into your car's cabin.