2011 ac/heat blender door noise
Recently I have been hearing a noise from under the dash. It sounds like a "muted" click, 3 - 4 times when the car is started and ac is on. From what I have read, is is probably a blender door activator, which I believe there are 3 on the Terrain. (?)
The AC seems to be working although with the recent 90+ degree days, at times, it may be not cooling fully, hard to say. I haven't checked the air temps. The noise happens initially when the car is started, with ac on "auto". It will occasionally make the noise on it's own when driving. I can also make it happen consistently when I click the recirculate button on and then off. It will sometime make the noise when I change from auto, when I change the upper or lower vents with the arrow buttons.
I removed the glove box and looked at the activator located toward the bottom left side. I didn't feel any vibration when the noise happens from there. I also disconnected that activator and the noise would still happen.
Any thoughts about the other activators or other things to check? It difficult to tell exactly where the noise is coming from. I haven't seen a good description where the other activators are in a 2011 model. Are the 2010+ all the same?
I did locate some pictures (the two on the driver's side) on another post but confused which activator may be causing the issue. Assuming it is an activator.
Also when re-syncing the activators on the 2011 do you remove the HVAC fuse for 10 seconds and reinstall with key on/engine off? Also there are two. One says HVAC Batt and the other says HVAC IGN.
Thanks for any feedback.
Last edited by txcycle123; 06-16-2017 at 02:51 PM.
Reason: Pic on another post