Removal (Recirculation Door)
WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
Remove the instrument panel compartment. Remove the right instrument panel insulator. Disconnect the vacuum line from the recirculation actuator. Lift on the retaining tab in order to release the recirculation actuator and slide the actuator off of the mounting bracket. Disconnect the vacuum actuator plunger rod from the recirculation lever. See Figure. Remove the recirculation actuator.