Air Throttle Body Assembly

The throttle body assembly controls air flow to engine through a double (5.0L) or a single (2.3L) butterfly valve. Throttle position is controlled by multiple-link, progressive opening, throttle linkage. Throttle body is a single piece die casting made of aluminum. It has a dual (5.0L) or a single (2.3L) bore with an air by-pass channel around throttle plate.

This by-pass channel controls both cold and warm engine idle air flow control as regulated by an air by-pass valve assembly mounted to throttle body (5.0L) or air cleaner (2.3L). Valve assembly is an electro-mechanical device controlled by EEC module.

It incorporates a linear actuator which positions a variable area metering valve. It also features a preset stop to locate W.O.T. position, a throttle body mounted throttle position sensor, canister purge ports for evaporative emission control (5.0L), and an adjustment screw to set throttle plate at minimum idle air flow position (2.3L).