The power steering is fine when backing out of my driveway, turning and getting out of my neighborhood. It runs like normal. But after the truck has warmed up then, boom, practically no power steering. I'm a strong guy but it takes every bit of strength to pull into a parking spot at the grocery store, sometimes I have to make a 3 point turn just to get in a spot. Thats how bad it becomes after 5 minutes of driving. Work like new when it's cold and not at all once it's warmed up? What gives?