Did you ever figure this out? My hose that runs into the reservoir was baked onto the metal tube and I had no option but to cut it off a bit. It is also Yokohama brand.
I only got it off the reservoir, next I have to get it off whatever it attaches to down near the wheel well.
Bumping this thread as it’s the only one I found with a similar problem as mine, and for some reason I can’t create a new thread..
Anyway, I started noticing a loud, high pitch squeal when I turn my steering wheel all the way in either direction. It also squeals when the brake pedal is pressed...