Section 03-14: Engine Controls, Electronic
1996 F-150, F-250, F-350, F-Super Duty Series and Bronco Vehicles Workshop Manual
DESCRIPTION AND OPERATION

Idle Air Control (IAC) Valve

Gasoline Engines

The idle air control valve (IAC valve) (9F715) is used to control engine idle speed and dashpot functions. The idle air control valve is mounted on the throttle body (9E926) and allows air to bypass the throttle plate. The amount of air allowed to bypass the throttle plate, will be determined by the powertrain control module (PCM) (12A650) and will be controlled by a duty cycle signal.

 CAUTION: Use of unapproved solvents may damage the IAC valve.



Idle Air Control Valve Assembly, Cleanable






Idle Air Control Valve Assembly, Non-Cleanable