Thanks for the videos they help. This noise is caused by the blend door actuator which has had the gear stripped out, which is common. Here are the locations of the actuators so you can check it out, put you had on each one while the noise is occurring, and you can find the one that needs replacement. My guess is it will be the driver side mode actuator because it is right in the area the noise is being generated in. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
Images (Click to enlarge)
Tuesday, October 4th, 2022 AT 9:56 AM