While running the blower fan, especially on high HVAC fan speeds, I have a slight squealing noise from apparently the HVAC fan motor (I think). It's like this "background" type noise. Very annoying. I did a search on HVAC and blower motor noises, most were gen 1. Mine is a gen 2, 2011. Annoying on a daily basis, but we are about to take a long trip, and I can imagine this sound driving me and my wife NUTS! It goes away when making rather hard right turns, especially longer turns, but always comes back after the curve, and stays constant on lefts. Almost 60k on the clock. Ideas, anyone?

 

No one replied, but I had the same issue on a Volvo with 155, 000 miles. TUrning was quiet, straight had noise but at slow speeds. I just ran at a higher speed. Good luck with yours, I can sympathize for sure!