1. Remove vacuum hose from solenoid valve fitting.
2. Put the hose on the syringe and create a vacuum in the cavity of the pneumatic chamber of the inlet pipe damper actuator. If the air chamber stem remains motionless, replace it.
3. Remove the vacuum hose from the air chamber fitting.
4. Pry with a screwdriver.
5.... and remove the ball tip from the damper drive rod.
6. Turn out two bolts of fastening of a pneumatic chamber to an inlet pipe...
7.... and remove the pneumatic chamber.
Note: This is how the air chamber of the intake manifold damper drive looks like.
8. Install the air chamber in the reverse order of removal.