Hi, I have a 2008 sts4 with the 3.6. When I got it, it was low on PS fluid, if not empty. I put some in, but the problem still persists. There’s little to no power steering when in park idling or moving at a slow speed. If I rev it up to 2k it will work. The power steering likes to cut out at a lot of corners too, regardless of how fast I’m going. At least then it’s moving pretty good and it’s a lot easier to steer, but it’s very difficult to park or even take a roundabout. The fluid is full and I’ve since flushed it and put new fluid in. The belt is not loose either. I think it’s probably the pump but I’m not entirely sure.