Ford Idle Air Bypass (IAB) Solenoid Cutaway Diagram - Plunger, Spring, Airflow

This document is a labeled cutaway schematic illustration of an idle air bypass (IAB) solenoid valve, as used on Ford fuel-injected engines to control idle speed. The diagram shows the internal construction of the valve in cross-section, with red callout lines identifying five main components: the electrical connector (at the upper left of the housing), the solenoid coil windings (surrounding the yellow core area), the plunger (a horizontal shaft extending through the valve body), and the return spring (shown in yellow at the right end of the assembly). Two airflow paths are indicated with arrows at the bottom of the valve body: an inlet marked 'INLET (ATMOSPHERE)' and an outlet marked 'OUTLET (MANIFOLD VACUUM)', showing that atmospheric air enters the valve and passes through to manifold vacuum when the plunger is retracted. A reader can learn how the idle air control/bypass solenoid works internally: the solenoid, when energized via the electrical connector, moves the plunger against spring pressure to open or modulate the air passage between atmosphere and the intake manifold, thereby regulating engine idle speed. The document contains no part numbers, year, model, or specification text, it is purely an anatomical/functional diagram of the component.