I have a 2011 Equinox V-6. I have grumbling noise almost shutter when I turn the steering wheel a slow speed. It is louder when the vehicle is put into reverse and the wheel is turned. The dealership said I had a bad power steering pump from the factory. They installed the new one today.....same problem. I wanted to know if anyone else with a V-6 Equinox or Terrain has had this same issue?????? Thanks!