There is a good method to prevent leak: to use good filtration
Magnetic Steer Safe Filter for Power steering and automatic gear boxes
http://www.at-hidraulic.eu/magnetic_steer_safe_filter_for_power_steering_and_automatic_gear_boxes/
why does it leak in the back of the car when the Power Steering fluid is put in the front of the car??
Yes, a power steering pump can leak because of overfill or cold weather. As the seals are damaged due to pressure from overfill or due to freezing, the pump can leak.
Clean the power steering are real good check for where the leak is coming from and go from there. For example if a hose is leaking replace hose, if power steering pump seals are leaking replace pump, exc.
If your power steering pump makes a whining noise as you turn your steering wheel your power steering fluid reservoir is probably empty. The noise is caused when your power steering pump tries to pump fluid that is not there. This indicates that you probably have a leak somewhere in your power steering fluid lines. You can either try to find the leak or simply replace the power steering fluid every so often.
A loose power steering belt or the power steering pump has failed or the power steering fluid reservoir is empty because of a leak in the system.
You have a leak. The leak can be from the pump or any of the fittings. You may also have a leak at the rack & pinion.
Usually the leaks are at the high pressure line or the return line of the power steering pump. Tighten all the lines at the pump.
That means you have a leak. Eventually your power steering will fail (no longer have power assist) and your pump will burn up. You can put some power steering fluid plus stop leak (all in one) in it, but I would also recommend that you crawl under the car and look for the leak.
could be several places, power steering hose, rack and pinion (or steering gear box) or power steering pump.
Several different things will cause a power steering leak. You may have a seal leaking on the pump. The hoses get weak over time and crack. The steering gear has seals that will leak as well.
The most common power steering pump leaks are at the line connections or behind the pulley at the shaft. The line leaks can possibly be repaired, but the shaft seal leak could be better to change the pump.
Because it needs a cap/the cap is faulty...
Three main risks are associated with power steering leak: 1) Loss of easy steering capability 2) Low amounts of power steering fluid can cause the power steering pump to fail, which is another expensive item 3) Risk of fire with the fluid being dripped on the engine