When the fluid is insufficient, the system cannot generate enough pressure, causing the steering wheel to become heavy or lose power. Insufficient hydraulic pressure usually causes the driver to use more force when steering, which is particularly noticeable when driving at low speeds or parking.

The most immediate sign of a failed power steering pump is that the steering wheel becomes unusually heavy. Because the hydraulic fluid is not providing enough assistance, the driver needs to apply more force when turning the steering wheel.

"Do I need to align the steering rack and tie rod after replacing it?" The answer is yes, in other words, after replacing these parts, the geometric relationship between the vehicle's tires, suspension system and steering system must be recalibrated to ensure the safety, stability and driving experience of the vehicle.

The steering systems of midsize sedans and SUVs are more complex, and the weight of the rack and pinion steering system may increase slightly. Generally speaking, the steering system weight of such vehicles is about 5 to 7 kilograms.