A battery light appeared on my dash. A new DIYer, I started doing what you are not supposed to do and threw parts at it. I didn't mind as I was learning as I was doing it. The truck has a new battery, ground connection checked, replaced the alternator, but still light would not go out. I saw the tensioner pulley "walk" back and forth and thought the pulley or belts were the issue, so I replaced those. I then realized the power steering was not working properly and checked the pump and sure enough, it appeared that the pwr steering pulley was getting "stuck" at a certain spot each rotation. After a bear of a time replacing the power steering pump and thinking I solved the problem, I am still seeing the battery light and when I look in the engine, the tensioner pulley still appears to "walk" back and forth. Any thoughts on next steps would be appreciated.