Blower Motor
WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, 2004 Ford E450 Super Duty, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The blower motor pulls air from the air inlet and forces it into the plenum assembly where it is mixed and distributed. The blower motor has four speeds and is controlled by the blower motor switch and resistor.