Removal (Defroster 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 right instrument panel insulator panel. Remove the I/P compartment. Disconnect the two vacuum lines from the defroster actuator. Disconnect the orange vacuum line from the recirculation actuator and install a hand vacuum pump. See Figure. Remove the defroster actuator from the attachment to the HVAC module case. Using the hand vacuum pump, open the recirculation actuator door to the full open position. Rotate the defroster actuator to the right and up into the opening between the back of the dash and the opening into the HVAC module. Disconnect the defroster actuator from the defroster door arm.