I was driving my 2005 subaru outback one day and I lost steering all together then it would come back. Took it down to a garage they looked it all over and said there is nothing wrong with it. Power steering levels good. Belt good and pump all good. So I take it home drove fine for a while now I lose power steering randomly no matter how fast I'm going or how much gas I'm giving it. It just comes and goes. In confused. Rack and pinion?