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The hose heater control valve opens and allows hot coolant from the engine to blow into the heater core. After the vehicle gets to the correct temperature, the thermostat is opened and allows coolant to circulate through the engine. The coolant removes the heat and sends it to the radiator and into the passenger compartment where it keeps you warm. The blower fan and heater controls are on the inside of the vehicle, so you can adjust the temperature until you are comfortable. The controls are assisted by the hose heater control valve, because they help control the heat output that is emitted into the cabin. The more you turn the heat or fan up, the more heat the valve allows through. Any heat that the heater core does not use is dissipated by going through the exhaust system.
The hose heater control valve is located in the left rear of the engine compartment, and controls the amount of hot coolant that flows to the heater core. If the valve becomes stuck, this can affect the heat in your vehicle, whether the heat is on all of the time or it will not work at all. In addition, the hose heater control valve can wear down due to physical damage from being used on a regular basis. With this being said, a professional mechanic will be able to assist you in replacing the damaged heater control valve.
The hose heater control valve is used every time you turn on your vehicle and while your vehicle is running. The cooling system and heating system work together to keep the engine cool and cycle the heat into the passenger compartment. One way to keep your heating system working well is having the coolant flushed on a regular basis. Make sure to refill it with a mixture of clean coolant and water to keep it in good working condition.
Over time, the valve can wear down and fail. It can become stuck in one position, which can cause you problems.
Signs that your hose heater control valve need to be replaced include:
- Constant heating from vents
- No heat from the vents
- Leaking coolant from the hose heater control valve
If you are experiencing any of the troubles above, consult a certified mechanic to inspect your vehicle and make any repairs as necessary.
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