IAC (idle air control)valves are operated by a ______.
A)vacuum servo
B)reversible DC electric motor
C)stepper motor
D)All the answers are correct.

Name: IAC (idle air control)valves are operated by a ______. A)vacuum servo B)reversible DC electric motor C)stepper motor D)All the answers are correct.
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Question

Quizplus · Accepted Answer

IAC valves are typically operated by a stepper motor, which precisely controls the amount of air bypassing the throttle plate to regulate engine idle speed.

IAC (Idle Air Control)valves Are Operated by a ______