It is under the dash on top of the HVAC module
Take old one out put new one in
There are usually only 1 blend door on a truck. This also goes for a 2005 Chevrolet Sliverado.
if it has dual air, there are two. One on top of the evaporator box behind the passenger side airbag and the other down below the evaporator box.
Behind The Dash Underneath The Steering Wheel , Slightly To The Right.
where is the defrost/floor door actuator on 2002 chevy trailblazer
Remove the dash assembly to gain access to the blend door actuator.
In the 2005 Chevrolet Avalanche, the blend door actuator is typically located behind the dashboard on the passenger side. It is positioned near the HVAC system, closer to the center or passenger side of the vehicle. You may need to remove panels or components of the dashboard to access the actuator for replacement or repair.
The temp blend door actuator is probably at fault.
The blend door actuator on the late model Chevy Tahoe is located behind the dash in the glove box area. Broken blend doors and broken blend door actuators are a very common problem among Chevy Tahoe, Suburban, and Silverado models. Typically, to repair a broken blend door, a mechanic will disassemble the dash and replace the plenum box. It is an expensive and labor intensive repair. There are also some DIY solutions such as the heatertreater that provide hardware and instructions for performing the repair by removing the glove box rather than the entire dash. It is worth looking into if you think you have a broken blend door.
It's a temp blend door and actuator, and it is located behind the dash assembly, connected to the HVAC box. The dash assembly needs to come out to access the blend door actuator.
The temp blend door actuator is broken.
The heater blend door is not run by vacuum. It is run by an electric actuator.