It’s easy for auto owners to take power steering for granted – you spin the steering wheel and your car turns. But behind the scenes your power steering is making it easy. The vast majority of vehicles on the road today have hydraulic power steering systems, which means that pressurized fluid is used to help you do the work of steering. A pump pressurizes the power steering fluid to provide the boost you need. In some auto owners’ vehicles the pump is driven by the serpentine belt, in other there’s an electric pump.