If using the air recirculation button in your car causes a mysterious knocking sound, you very well may need a new air door actuator. Come along as I replace the actuator in my 2016 Kia Sportage without dismantling the entire dash. It requires a little patience, small-ish hands, and a stubby Phillips head screwdriver. (And a good dog to keep an eye on things) 😊

I ordered the actuator from O'Reilly Auto Parts, a local parts store. They had good reviews and a great tool for matching your car to the right part.

Thanks for watching!