Air conditioning

Hello,

I suspect the clicking noise is the blend door actuator.
The blend door actuator what changes the flow of air from hot to cold and vise versa.
Many times they will have a fault in the actuator and it will keep making the clicking noise even though it is in one position.
The blend door actuator is located under the dash on the passenger side.

Here is a helpful article:

https://www.2carpros.com/articles/replace-blend-door-motor

Please let me know of any questions.

Thank you.