As a first guess, I'd suggest checking the power steering fluid and belt.
The pump is being driven by the car at all times so if its sucking air via the Oring then its going to be noisy as long as the car is running. Turning simply changes the pressure ie load on the power steering system hence change in noise etc. Given the sound changes pitch etc when you turn fair bet its your Power STeering.I actually suspect this, and have the oring because I have a small leak there. But since the sound is there whether I'm turning the steering wheel or not, I don't suspect this. It does get slightly louder when turning the steering wheel. I will change it out this weekend and hope it doesn't get this cold again!
I know both sounds well. The Subie sound never concerns me...both of mine do the same thing here in NE Wi...just chalked it up to "it's too cold for anything to be running". The same sound blaring from a 177 "Gutless" or a "Flying Chevette"(172) requires just a tad more attention!it sounds like a stall horn in a cessna, though only anyone whose flown in one would know what i'm talking about..
Oh yes I know that sound. Though tried to keep my flying time to better machines. The Verieze sorta destroyed my interest in flying 1940's technology.I know both sounds well. The Subie sound never concerns me...both of mine do the same thing here in NE Wi...just chalked it up to "it's too cold for anything to be running". The same sound blaring from a 177 "Gutless" or a "Flying Chevette"(172) requires just a tad more attention!![]()