How to Test an Idle Air Control Sensor?

Answer The idle air control valve, also simply known as the IAC valve, acts just like an idle air screw used to work on older vehicles. However, unlike the adjuster screw, the IAC is constantly making sma... Read More »

Top Q&A For: How to Test an Idle Air Control Sensor

Is My Idle Air Control Sensor Bad?

The idle air control sensor or valve on an automobile controls the idle speed of the motor. It is also called an idle speed control, automatic idle speed motor and idle speed control solenoid. The ... Read More »

Signs and Symptoms of a Bad Idle Air Control Sensor?

Connected to the engine's primary air intake valve (the Throttle Body, or TB), the Idle Air Control (IAC) valve is responsible for making minor adjustments to engine airflow. While the IAC valve's ... Read More »

How to Test Idle Air Control?

The idle air control (IAC) valve, which is sometimes also called the idle speed control valve, is a small valve on the throttle body of the engine in fuel-injected cars and trucks to control idle s... Read More »

How to Test the Idle Air Control Valve on a 1998 Ford Ranger?

The idle air control (IAC) valve on a 1998 Ford Ranger is designed to raise or lower the idle by regulating the amount of air that enters the throttle body. As the valve opens, more air is allowed ... Read More »