I'm stumped. Blower motor works fine. But no air coming out of any vents not even the defrost vents. Replaced motor on passenger side thinking the actuator was bad. Nope. I did noticed the silver plunger just to the right was not moving on any setting. I though it should open the door for max AC? When I physically operate the plunger it does open the door and sucks air in.
I checked the fuses they seem to be fine.


Bewildered

 

You've got a vacuum leak from the Function Control on the dash leading to the individual vacuum servo's, solenoid's, motors or whatever you call "those silver things".

The Function Control is an electro/vacuum switch BTW.