Question about 1999 Ford Explorer
Change the idle air control valve.
Idle Air Control (IAC) Valve OPERATION The Idle Air Control (IAC) valve controls the engine idle speed and dashpot functions. The valve is located on the side of the throttle body. This valve allows air, determined by the Powertrain Control Module (PCM) and controlled by a duty cycle signal, to bypass the throttle plate in order to maintain the proper idle speed. Fig. 1: Typical Idle Air Control (IAC) valve which is mounted to the throttle body - cutaway view shows air bypass direction
--- REMOVAL & INSTALLATION
Next, remove the two IAC vdiagnostics test says idle air control underspeed - 89684p04.jpgng bolts . . .
. . . and pull the valve from the intake manifold
Posted on Oct 15, 2010
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Posted on Jan 02, 2017
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