Heater Control Valve

Symptoms of a Bad or Failing Heater Control Valve

• Adjusting the temperature may not change the output from the heater
• Valve may leak coolant

Heater Control Valve Related Repair Advice

• When replacing the heater control valve, the shop should inspect all of the heater hoses and replace them if needed
• If the heater control valve is being replaced due to corrosion, we recommended flushing the coolant to prevent additional problems
• Heater control valves are often replaced because they leak; but if the heater hoses are being replaced, it's economical to replace the valve as well
• Not all vehicle are equipped with a heater control valve. If a valve is not used, coolant continuously flows though the heater core.