mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

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Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 5033 > < Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 5031

Cougar/XR7 V8-4.6L VIN W (1997)

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Idle Air Control Valve: Description and Operation

PURPOSE

The Idle Air Control (IAC) valve controls engine idle speed. 

OPERATION

The idle air control valve allows air to bypass the throttle plate. The amount of air allowed to bypass is determined by the Powertrain Control
Module (PCM) and is controlled by a duty cycle signal.

Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 5033 > < Idle Air Control Valve <--> [Idle Speed/Throttle Actuator - Electronic]|Specifications|Page 5031