I have a 2002 MDX with a power steering noise. The rack and pinion were replaced as well as the power steering pump, with genuine Acura parts. Still, it is noisy. The power steering fluid has air bubbles in it, so it seems that somewhere air is getting in where it should not be. Other vehicles of the same year and make are quiet, so it is unlikely a design flaw. There are no open recalls for this problem.