GStatus

When my heat or air conditioner is running it makes noises (loud squeaks and squeals)
The only way for it to stop is if I run the heat/ air conditioner at the lowest setting.
I live in Canada and with winter right now its cold but if I don't run it at the lowest setting, the sound is loud and really annoying...
I thought it was maybe a loose cabin filter but I checked that and its fine.
Anyone else with this problem? Where is it coming from? I want to fix this. Thanks!

Driving a 2006 Lexus GS 300 AWD, FYI

TRD_Power

Sounds like it could be one of the fans. That'd be a pain to pull out and track down though :/ That's my best guess. Best of luck.

ez12a

if it's dependent on fan speed then it's probably the blower motor.

pulled blower motors seem to be pretty inexpensive on ebay. Might be worth just swapping it.