Blend Door Actuator Clicking With Car Off

An actuator can go bad in of two ways.

Blend door actuator clicking with car off.

A blend door actuator controls the temperature and the flow of the air in a car. Sometimes the clicking will start randomly even though the ac controls are not touched and will often not stop. Sometimes the fix needs recalibration and sometimes you need to replace the part that is broken. If your vehicle is only releasing cold air or if you are not able to change the airflow it may be because of a malfunctioning actuator.

I won t be able to have a mechanic look at it until the weekend around 5 days from now. Use a test light or power probe and verify that the proper signal is being received to the actuator based on your wiring diagram. The blend door actuator is most of the time at least accessible for testing but sometimes removal of the dash is necessary for replacement. A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit.

I am worried because i will turn my car off and the noise persist for a while then turn off. An actuator can become faulty if the plastic gear set turns out to be fragile and it breaks. The actuator on my chevy impala is making a clicking noise under the right side of my dashboard by the glove compartment. First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or.

The clicking noise continues even after the car is off. It s most likely the actuator motor for the blend door in the a c ducts behind the dashboard especially if the noise seems to. A blend door actuator is linked to an air control door pivot found on the last drive of the unit. Is this draining my car battery.