The two basic systems
Steering systems can be broken down into two basic types, "Steering box" and the "Rack and pinion style".
Each of these types are now usually power-assisted in some form depending on the manufacturer and design of the remainder of the system.
The advent of power steering has meant the vehicle can be safely manoeuvred with minimal effort from the driver.
We have all tried to turn the wheels of a car with the engine turned off and felt the extra effort just to turn the wheels, so having a power steering system functioning correctly is a necessity for the safe driving of your vehicle and, indeed, a welcome advance to drivers.
These systems were hydraulically powered and required a pump (running off the engine), hoses to and from the steering unit and the unit itself. All are subject to extreme heat and pressure, so it wasn't unusual for the system to require some form of servicing every 2nd year.
Your mechanic would inspect the system for leaks and damage when the vehicle was undergoing its usual service.
Some businesses specialise in providing power-steering unit servicing for the trade because it has become such an intricate field.
