F 250 4WD Super Duty V8-6.4L DSL Turbo (2008)
Piezo Actuator
^ The piezo actuator is an electrically energized device that acts similar to a solenoid but is much more precise.
^ A piezo actuator is a composition of piezo discs that when electrically energized cause the discs to deform resulting in an expansion. This expansion
results in a longitudinal motion thus controlling the injector.
^ When energized the piezo actuator pushes downward against the valve piston. The piezo actuator is returned to its non energized state via the ECM
switching the polarity of the electrical feed to the injector.
