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.
They also control hot and cold settings for right and left passenger compartments.
An actuator moves the blend door automatically when the temperature control is moved.
A new door actuator costs less than 100.
It is controlled by a blend door actuator which is a small electric motor.
Also called hvac actuators these small electric motors control the flow and blend of hot and cold air to the passenger areas by opening and closing the vent doors that let the air through.
Find the procedure in a shop manual at auto parts stores for about 20.
In this video i explain how to replace the a c blend door actuator.
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.
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.
The blend door or vent door mixes warm and cool air to be sent to your vents.
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.
A premium hvac heater blend air door actuator replacement for dodge durango 2001 2009 stratus viper ram 1500 2500 3500 aspen sebring srt 3 8 out of 5 stars 11 18 99 18.
Hope y all enjoy this video and let me know what y all t.