GMC Workshop Service and Repair Manuals > Sierra 1500 2WD V8-6.0L VIN U (2004) > Heating and Air Conditioning | Air Door, HVAC | Air Door Actuator / Motor, HVAC | Component Information | Service and Repair | Actuator Recalibration - HVAC

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3. Connect the electrical connector to the recirculation actuator (1).
4. Install the air distribution duct

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