Power-steering is what enables you to turn your steering wheel, without a great deal of effort. The power steering pump is what pushes the hydraulic fluid out at a high pressure to help keep your steering smooth.If you notice a power steering fluid leak or it becomes difficult to turn the wheel, chances are your power-steering pump needs to be replaced.When your power steering pump fails, your only option is to replace it. Without a power steering pump to help push your wheels left and right, you won’t go very far. If ignored long enough, the entire power steering rack may need to be replaced.From a safety standpoint, there is a large safety risk, because a failing power steering system will make it difficult to control your vehicle. From an environmental point of view, leaking power steering fluid can be dangerous to children and animals.