A/C heater blend door actuator location

There are two style of blend doors one of them is right on top of the heater plenum. Here is a guide that will show you how to do it with diagrams below to show you on your car.

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

TEMPERATURE BLEND DOOR ACTUATOR
Removal
Disconnect negative battery cable. Remove instrument panel. See INSTRUMENT PANEL. Remove 4 temperature blend door actuator screws. Remove actuator from top of evaporator case.

(DIAGRAM BELOW)

1 18471 Heater Air Plenum Chamber
2 18A317 Vacuum Control Motor
3 18C433 Heater Outlet Floor Duct
4 389975-S2 Nuts
5 18A478 Windshield Defroster Door
6 - Windshield Defroster Door Crank Arm

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

It is located on the top of the HVAC housing and the dash has to be removed to access it.

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He manual controls will have switches for the heat and another for the fan speed. The automatic system is more of a mini-computer that controls itself.