Throttle Body Assembly
WARNING: This page is about a different car, the 1995 Ford RV Cutaway, 1995 Ford Econoline, 1995 Ford Cutaway, and 1995 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
The throttle body assembly controls air-flow to engine through a butterfly valve. Throttle position is controlled by either linkage or cable/cam mechanism. Body is one-piece aluminum casting with air by-pass channel.