Hopped into the car- turned the key and heard a quick whirring sound associated with the AC vents that move when you turn the key.
I Knew exactly what it was. (I had replaced one of these on my Impala).
I lowered the glove box- and you can clearly see one of the actuators.. theres 2 I believe. I put my fingers on it and moved the vent selector-- and felt the clicking on the actuator shown in the pic. I touched the 2nd- it was smooth.
Whats interesting about this is that it whirrs in one direction only.
In the video you can see the round metal thingy move.
I grabbed my tools and proceeded to remove it.
Unplug the connector at the actuator.
3 screws- with torx screws. (T20 I believe).
I lowered the glove box and removed the blower fan shield. (2 push tabs fasteners).
WARNING-- if you have big hands-- this is going to be hard. I have small hands and was able to stick my hands in from the glove box opening and from underneath. I used a small ratchet to help me. THe hardest screw to remove is the top. The other 2 are easier to reach from the bottom.
At times I was laying on my back with 1 hand thru the bottom and one thru the glove box.
I also disconnected the blower motor plugs (2 plugs that were in the way).
The area where the edge of the cabin filter plate is-- that piece kept rubbing my hand.. the top of my hand is not cut-- but is a little sore from that plastic digging into my skin.
the sound.... It actually sounds loud-- because the camera is close. With you sitting in the drivers seat- its a bit quieter.
The actuator as seen from the open glove box
Once the 3 screws come off-- the actuator slides off
Having dealt with one of these in the past... The one in the Impala had broken teeth- which was causing the loud noise from grinding gears.
So I took apart the actuator. (theres tabs around the actuator that you can lift up with a screwdriver).
Here it is taken apart. (note it says LAMBDA FR) on the bottom.
But interestingly enough-- there were NO Broken gears. They were all OK.
I then worried that it may be the vent door....
But then I removed the gears and spun the motor.
It turns very smoothly in one direction... but in the opposite direction it clicks.
This is where the whirring is coming from..
Good thing its not vent door related.
I will update when the new part is in.