Hello, I'm Danny.
It would be hard for you to manually close the mode-blend door flap and without the actuator in place it probably wouldn't stay closed. The mode-blend door actuator is a small electric motor that opens and closes a door to direct airflow throughout certain air ducts. It is mounted on the left side of the HVAC module under the right side of the dash. Here is a tutorial showing what is involved for its replacement:
https://www.2carpros.com/articles/replace-blend-door-motor
I've attached picture steps below for the blend-mode door actuator for your vehicle. Hope this helps and thanks for using 2CarPros.
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Sunday, December 6th, 2020 AT 9:16 PM