Blend door actuators

Sounds like a restricted or broken door.

It has 4 not 3

Where can I buy the actuators? Also how do they look?

Ronald any update on that actuator repair? My 2013 Impala is doing the same thing.

Replace the actuator under the glove box .its all over youtube.

None of the replacements are worth buying. My replacements have lasted from one month to eight months. My car is a 2012 Impala. The gears need to be made out of metal not plastic. I have called dealerships and garages and they all say the same thing that all brands are junk.