My truck will not blow air out of the top vents. Just the floor and defrost vents. When I crank it or turn the key on I hear a loud clicking under the dash near the driver side. It clicks for about 10 seconds then stops.

Is this the mode door actuator gone out, and if so how hard are they to replace?

2003 2500hd btw.

 

Yep door actuator is out both of mine are gone as well not easy to rwplace eother

 

needs acutators on door. Alot of the dash needs to be removed

 

Aww man that sucks...sounds like its gong to be a pain in the A**