Runner Control Valve

The runner control valve lets high air pressure access the engine's cylinder to guarantee maximum manifold pressure. The control valve can be a vacuum solenoid or an electrical actuator, it all depends on the vehicle.

Runner control valve function

The main purpose of the intake manifold runner control valve is to keep each cylinder from receiving sufficient amounts of air during the operation of the wide-open throttle as well as the transient. The runner control valve is made to reduce airflow through specific intake runners to enhance engine performance and lessen emissions.

Common issues with a malfunctioning intake manifold runner control valve

A malfunctioning intake manifold control valve can lead to poor fuel economy, a decline in engine performance, and difficulty starting the engine.