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Showing posts with the label blend motor

How To Replace Blend Door Motor

Blend Door Motor Replacement How to Replace a Blend Door Motor First of all let’s bet an idea of what a blend door motor does. Inside your car; heat comes from the air passing over the  heater core  and cold air comes from the air passing over the air conditioner evaporator . Inside the heater box is where the blend door is actuated by a blend door motor that closes and opens it depending on the temperature selected inside the vehicle. To find out if your blend door motor is working properly, start engine and select the low fan setting and move the climate control from cold to warm and back while listening to the sound of the blend motor through the vents.  You should hear it activate while changing from warm to cold. If you only have heat then you may have a  vacuum leak  or your blend door motor is bad and should be replaced. To give you an idea of what is involved it replacing the blend door motor, you have to see where it is located. If behind the ...