In the current automotive market, hydraulic power steering systems (HPS) and electronic hydraulic power steering systems (EHPS) are still widely used, and both systems rely on power steering pumps.

Under normal circumstances, the design life of the power steering pump is 150,000 to 200,000 kilometers. When the vehicle mileage reaches this range, even if the power steering pump has not yet shown obvious failures, the owner should consider checking it and replacing it if necessary.

If the power steering pump fails or its performance deteriorates, the pressure of the hydraulic oil cannot be effectively transmitted to the rack and pinion, and the driver will feel that the steering wheel becomes abnormally heavy, especially at low speed or parking.

As a luxury car, the replacement cost of the power steering pump of Buick LaCrosse is relatively high. The total cost is usually between $300 and $800.

A power steering pump is a device specifically used to provide hydraulic power to a vehicle's power steering system. Its main function is to convert the engine's mechanical energy into hydraulic energy, and through the flow and pressure of hydraulic oil, the auxiliary steering system reduces the force required by the driver to turn the steering wheel.

The power steering pump (Power Steering Pump) is one of the key components in the power steering system. Its main function is to generate hydraulic oil flow through mechanical force to provide power to the steering system.

Due to the different viscosities and compositions of the transmission fluid, it may not provide the ideal lubrication required by the power steering system. This will cause increased friction inside the pump and pipes, and long-term use may accelerate wear and shorten the life of the pump.