Heater Control Valve

The heater control valve opens and closes to allow warm coolant to flow through the heater core. Air passing through the heater core creates hot air in your vents. It sits between the water pump heater hose and the heater core. The heater control valve is found in front of the firewall of the vehicle. It may be controlled either by vacuum pressure or electrical signal. A failing heater control valve may not open or only open when the vehicle is at idle. This may cause the heater to stop working. You may also notice coolant leaks if the valve is damaged. If you need a heater control valve, check out O'Reilly Auto Parts. We also carry heater hose connectors and heater cores for a complete repair.