GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2005
🢒
Astro - 4WD
🢒
HVAC
🢒
HVAC Systems - Manual
🢒 Defroster Valve Actuator Replacement
Removal Procedure
Remove the right knee bolster. Refer to
Passenger Knee Bolster Replacement
in Instrument Panel, Gages and Console.
Remove the right cowl trim panel. Refer to
Cowl Side Trim Panel Replacement
in Interior Trim.
Disconnect the vacuum hose from the defrost actuator.
Depress the retaining clip and remove the defrost actuator from the air distribution housing.
Installation Procedure
Install the defrost actuator to the air distribution housing.
Connect the vacuum hose to the defrost actuator.
Install the right cowl trim panel. Refer to
Cowl Side Trim Panel Replacement
in Interior Trim.
Install the right knee bolster. Refer to
Passenger Knee Bolster Replacement
in Instrument Panel, Gages and Console.