Heater Door Actuator

And what causes them to mess up.

Heater door actuator.

Air door actuator replaces 89018365 604 106 52402588 compatible with chevrolet chevy gmc 1994 2012 silverado 1500 and 2500 tahoe sierra hvac blend control actuator heater blend door 4 5 out of 5 stars 921. Find the procedure in a shop manual at auto parts stores for about 20. This actuator then moves temperature and air direction doors inside the heater plenum box which are designed to control mode settings such as temperature floor mid vent defrost and fresh air or re circulation modes. They also control hot and cold settings for right and left passenger compartments.

But if your car heater blows cold air and you ve checked both heater core hoses to make sure they re hot you likely have a bum blend door actuator. As autos had more and more labor saving devices added as standard equipment heater and air conditioning controls could be operated with less effort when automakers started installing blend door actuators. If your car or truck passengers don t seem to be getting all the benefits of your vehicle s heating or a c system you could have a non working a c heater blend door actuator. A new door actuator costs less than 100.

It is controlled by a blend door actuator which is a small electric motor. When you turn the knob on your dash to the desired temperature the actuator moves the blend door to achieve the proper mix. In this video i explain how to replace the a c blend door actuator. Hope y all enjoy this video and let me know what y all t.

You can usually diagnose and fix the problem yourself in about an hour. The blend door or vent door mixes warm and cool air to be sent to your vents.