Power assist makes it easier to turn the steering wheel. Hydraulic power steering solved a problem with classic cars being harder to turn at lower speeds, and today some newer vehicles have electronic assist steering. If your vehicle has hydraulic power steering, you might hear a whine or have to use more strength to turn the steering wheel when the system has issues. Find out common problems with the power steering system, like low power steering fluid symptoms, why the hydraulic power steering system in your car might cause harder and noisier steering, and how you can fix it yourself.