Intake Manifold Runner Control Systems (2017)

The Intake Manifold Runner Control (IMRC) consists of a remote mounted, electric or vacuum actuator with an attaching cable for each IMRC housing. The cable or linkage attaches to the housing butterfly plate levers. The IMRC housing has two intake air passages for each cylinder. One passage is always open and the other is opened and closed with a butterfly valve plate. The housing uses a return spring to hold the butterfly valve plates closed for an electric system or open for a vacuum system. The electric actuator houses an internal switch or switches, depending on the application, to provide feedback to the PCM indicating cable and butterfly valve plate position. The vacuum actuator uses IMRC position switches indicating the butterfly valve plate position.

The Intake Manifold Runner Control (Swirl Control Valve) used on the 2015 MY 5.0L Mustang and F150 consists of a manifold mounted vacuum actuator and a PCM controlled electric solenoid. The linkage from the actuator attaches to the manifold butterfly plate lever for each bank. The IMRC actuator and manifold are composite/plastic with a single intake air passage for each cylinder. The passage has a butterfly valve plate that blocks most of the opening when actuated, leaving the top of the passage open to generate turbulence. The housing uses a return spring to hold the butterfly valve plates open. There is a monitor circuit for each bank to provide feedback to the PCM indicating butterfly valve plate position.

Below approximately 3000 rpm, the vacuum solenoid will be energized. This will allow manifold vacuum to be applied and the butterfly valve plates to remain closed. Above approximately 3000 rpm, the vacuum solenoid will be de-energized. This will allow vacuum to vent from the actuator and the butterfly valve plates to open.