Turbocharger Wastegate Actuator
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The turbocharger wastegate actuator is a canister device containing a diaphragm controlled by an applied vacuum. The diaphragm is attached to a connecting rod that is attached to the turbocharger wastegate. The vacuum source applied to the turbocharger wastegate actuator is controlled by the powertrain control module (PCM) to using the turbocharger wastegate regulating valve solenoid to vary the amount of vacuum applied to the diaphragm.