Weird noise inside cabin

I have a high pitched motor noise seeming to be coming from the hvac vents. It goes up and down with the engine rpm. It used to constantly click but not anymore. Could this be the blend motor still or another problem? Thx

 

It very well could be the blend door servo...the oscillating high pitch noise is associated to a grounding issue of sorts...perhaps the no-longer clicking sound has caused the high pitch sound indirectly...Rip it apart and replace the blend door and I bet you'll be good to go...

 

Ok thx

 

A v6 sr5 just showed up at a junk yard and I'm thinking of pulling hvac parts from it vs spending bigger money on new ones

 

100% a great idea!!

 

Ones i had weird noise from HVAC. Appeared to be a leaf got in to the fan.