AC/heater making clicking sound

Hi:

First, here is a link showing in general how a blend air door actuator is replaced:

https://www.2carpros.com/articles/replace-blend-door-motor

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Here are the directions specific to your vehicle for replacing the blend air door actuator. The attached pictures correlate with the directions.

2005 Nissan-Datsun Truck Quest V6-3.5L (VQ35)
Front
Vehicle Heating and Air Conditioning Air Door Actuator / Motor Service and Repair Procedures Manual Air Conditioner Air Mix Door Motor Front
FRONT
AIR MIX DOOR MOTOR

Removal and Installation

pic 1

AIR MIX DOOR MOTOR (FRONT)

Removal
1. Remove the lower driver instrument panel. Refer to "Instrument Lower Panel LH".
2. Remove the center console trim panel.

pic 2

3. Disconnect the air mix door motor electrical connector.
4. Remove the three screws and remove the air mix door motor.

Installation
Installation is in the reverse order of removal.

Let me know if this is what you needed or if you have other questions.
Take care,
Joe