You should fill the pump reservoir with fluid to the minimum system level, full cold level, or middle of hash mark on the cap stick fluid level indicator, fully charge the hydro-boost accumulator if equipped with hydro-boost, and raise the vehicle, with the key on engine off, turn the steering wheel from stop to stop 12 times, verify power steering fluid level per operating specification, start the engine, rotate steering wheel from left to right, check for sign of cavitation or fluid aeration (pump noise/whining) and verify the fluid level.