Vacuum Control Motors

WARNING: This page is about a different car, the 2007 Ford Econoline, 2007 Ford E450 Super Duty, and 2007 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

The 3 vacuum control motors:

are actuated by vacuum from the function selector switch.
position the airflow mode doors to direct system airflow to the vehicle's interior as determined by the function selector switch setting.