Did you know how exactly does the steering in your car actually work? Are you considering installing a power steering? You can never know just when your car simply needs maintenance and when it needs a power steering until you know more detailed about the rack and pinion steering in your car.
Not many people know this, but a rack and pinion steering is what makes most cars turn, the new ones at least. And many people who do know that, don't know just when to put all their knowledge to a good use. It is not necessarily that every car not giving the required response from the wheel needs a power steering, sometimes all it needs is some cleaning of its mechanism to get to the fast track again.
Essentially, the steering wheel of most cars is attached to a pinion gear which in turn is placed upon a rack that is further extended by rods adjoining the spindle in the wheels. When you rotate the steering, the rack and spindle mechanism moves in the relevant direction, thereby pushing and pulling the spindles of both wheels so as to make the wheels turn.
Usually with most cars, it takes a full three to four revolutions to move the wheels from one end to another, however, the more revolutions a steering wheel needs to complete the circle, the more mechanical advantage inherent. Whereas if you are driving a sports car you would want af wheel that could turn on a dime, so a lesser revolution steering wheel would be required, and of course a power mechanism to negate the mechanical advantage required turning the wheels.
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