You don't need to replace the pump yet. Top off the p/s fluid, and turn the wheel back and forth a few times (with the engine running) to circulate the new fluid. If the cutting out stops, the pump is fine. If the cutting out or whining noises persists for days, replace the pump. Also, if the pump itself is leaking, then you should replace it, but you said your rack is leaking?89harper said:so you think with the ps being messed up for a week or two the pump is more than likely toast and will need rebuilding or replaced?