Sierra Classic 3500 4WD V8-8.1L (2007)
Air Door Actuator / Motor: Service and Repair
HVAC System - Automatic
Mode Actuator Replacement (With RPO Code D07)
Mode Actuator Replacement (With RPO Code D07)
Removal Procedure
Notice: In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in the HVAC module.
1. Remove the floor air outlet duct extension (1) from the floor duct (2).
2. Remove the center console.
3. Remove the screws from the center console duct.
4. Remove the center console duct.
5. Disconnect the electrical connection from the mode actuator (10).
6. Remove the mode actuator mounting screws from the HVAC module.
7. Remove the mode actuator as an assembly with the actuator cam.
Installation Procedure
