Idle Air Control Motors

Idle Air Control Motors (IAC)

Description: A stepper motor controlled by the onboard computer. The computer moves the pintle in and out of an opening that bypasses the throttle blade. This allows the computer to precisely control idle speed when varying loads are placed on the engine.

Symptoms of Failure:

  • Engine Stalling
  • Surging
  • Poor Idle Conditions
  • Check Engine Light

Recommended Service: Check for proper operation with each tune-up. Replace when trouble codes indicate failure.

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Idle Air Control Motors
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