The answer is no. The manual steering rack does not require a power steering pump, which is one of the fundamental differences between it and the power steering system. The power steering pump is a key component that provides hydraulic assistance to the hydraulic power steering system.

A faulty hydraulic power steering rack may make noises such as: 1. Whining Noise 2. Clunking or Knocking Noise 3. Squealing or Screeching Noise 4. Hissing Noise 5. Grinding Noise

If the leakage is caused by wear of the rack or pinion, then the difficulty of repair will be relatively large. The worn rack surface may cause the seal to fail to seal effectively, which in turn causes hydraulic oil leakage.

From Toyota and Ford to BMW and Mercedes-Benz, these brands still choose hydraulic steering systems on some models because of their excellent reliability, excellent driving feedback and low manufacturing and maintenance costs.

The driver needs to exert more force when steering, which is especially dangerous for inexperienced drivers. In an emergency, the lack of steering power may cause the vehicle to fail to avoid obstacles in time or make correct steering operations, causing accidents.

A damaged steering rack may cause inaccurate steering of the vehicle. This phenomenon is usually manifested as the actual steering angle of the vehicle does not match the expected one after the driver turns the steering wheel, or the steering response is slow.

In some cases, the oil leakage problem of the hydraulic steering rack may be caused by the design defects of the vehicle itself. For example, the hydraulic steering system design of some models is not reasonable, resulting in excessive hydraulic oil pressure or excessive stress on the seals, thereby increasing the risk of oil leakage.

The main function of the power steering pump is to provide hydraulic pressure and is the "heart" of the system. The power steering rack is the actuator, which converts hydraulic pressure into mechanical movement and is the "hands and feet" of the system. The pump provides power support for the rack, while the rack converts this power into actual steering effect.

Reasons for noise in the hydraulic power steering system: 1. Insufficient hydraulic oil or oil mixed with air 2. Power steering pump failure 3. Steering rack failure 4. Poor quality or deterioration of hydraulic oil 5. Loose pipes or joints 6. Excessive pressure caused by the steering wheel hitting the bottom

In general, the service life of the hydraulic power steering rack is between 120,000 and 150,000 kilometers. However, this value is not absolute, because different use conditions will have different effects on its life.