1970s: Power steering becomes standard in cars In the 1970s, power steering racks gradually changed from an optional configuration to a standard configuration for most cars on the US market. In particular, as the size and weight of cars increased further, manual steering systems became increasingly impractical.

Oil leakage is one of the most common problems in Ford Fiesta steering rack, especially in aging or damaged steering systems. Oil leakage usually occurs in hydraulic power steering systems. Although most modern Ford Fiestas use electric power steering (EPAS) systems, hydraulic systems are still used in some older models.

Once a leak occurs, the hydraulic pressure of the system will drop, resulting in weakened power assistance or complete failure. In this case, the driver needs to use more force to turn the steering wheel, especially parking and turning operations at low speeds will become very difficult.

If the gears inside the steering rack are worn or loose, it may make an abnormal knocking sound when the steering wheel is turned. In addition, insufficient lubrication of the steering gear may also cause this situation.

If the motor in the electric steering rack fails, it is generally repairable. Common problems with motors, such as brush wear, coil breakage, or poor electrical contact, can usually be repaired by replacing certain parts of the motor.

The weight of the power steering rack varies depending on the model and design. Generally, its weight ranges from 10 kg to 30 kg. The hydraulic power steering rack is usually heavier than the electric power steering rack. This is because the hydraulic power steering system needs to include components such as hydraulic pumps, fuel tanks, pipes and control valves.

In general, the impact of the failure of the electric power steering rack on the vehicle's controllability after the loss of power assistance is more direct and serious, and it is usually more dangerous. Therefore, car owners need to attach great importance to the maintenance and inspection of the electric power steering rack.

For novices, one of the most important challenges is the lack of practical operating experience. Replacing the power steering rack and pinion is a delicate job, and any operational error can cause the entire system to operate abnormally.

When the power steering pump fails, the driver usually feels that the steering wheel becomes heavier, but there is no obvious jamming feeling. When the power steering rack fails, the driver may feel a change in the resistance to steering wheel turning, especially jamming at certain angles.

Because the manual steering system is usually designed to be simple, and in some models, the design of the wheel and steering system does not take into account too much power assistance, the manual steering rack needs to bear greater pressure.