For a couple years now my car’s had a belt squeal. It only happens in winter; when the engine is cold it sometimes squeals for about 20 seconds and then the noise goes away.
Yesterday I finally went out and measured the belts. The AC and alternator were loose below spec, so I tightened them to ~100lbs.
Then I unplugged the power steering reservoir and flushed the system with three bottles of Honda PS fluid. It was time.
Hopefully the next few days will confirm that the belt squeal is gone. As an added bonus, I think there was a little squealing during moderate engine load that’s also gone now.