I checked and followed all the suggestions and procedures regarding bleeding, which was not necessary on my unit, so I finally emailed Prevost and figured that this may be a little over my head. They basically diagnosed it bad power steering pump. I couldn't figure why at a dead stop the wheel was almost impossible to move and rolling just a little gave me back my power steering this didn't sound logical to me but, my experience with the South Brunswick NJ Prevost facility has been great so I trust their info.. So a new pump and fliter and fluid change gets me 100% again.