Durango 4WD V8-4.7L VIN P Flex Fuel (2007)
Idle Speed/Throttle Actuator - Electronic: Description and Operation
Description
DESCRIPTION
A separate IAC motor is not used with the 5.7L V-8 engine.
The IAC stepper motor is mounted to the throttle body, and regulates the amount of air bypassing the control of the throttle plate. As engine loads and
ambient temperatures change, engine rpm changes. A pintle on the IAC stepper motor protrudes into a passage in the throttle body, controlling air flow
through the passage. The IAC is controlled by the Powertrain Control Module (PCM) to maintain the target engine idle speed.
