Overfilling the power steering fluid reservoir causes foaming of the hydraulic fluid, leading to premature wear of the system. Power steering fluid is hydraulic fluid that moves cylinders to reduce the force required to turn the wheels and provides lubrication. Foaming fluid provides less lubrication than normal, so the internal parts wear more quickly.Know More
In the past, manufacturers used metal power steering fluid reservoirs that made overfilling common. The switch to translucent plastic reservoirs makes checking and filling the fluid easier. Many of these units are marked on the outside so the driver is able to check the fluid level with a glance instead of using a dipstick.
Take time to clean the reservoir before opening it to add more fluid. Contaminants in any hydraulic system cause problems with operation. Always use the fluid the vehicle manufacturer recommends for the car. Open the lid and slowly pour fluid to the maximum fill line. If the unit is overfilled, remove excess fluid, dropping the level to the maximum mark, to prevent further foaming.
If the power steering unit continues to lose fluid, it probably has a leak. Drivers may notice an oily spot on the driveway under the car when there is a leak. Leaks allow air in the system, which causes noise and affects steering. Unrepaired leaks lead to premature failure of the power steering unit.Learn more about Car Parts & Maintenance
The power steering fluid level is the first thing to check when a whining sound is heard coming from the power steering pump. The power steering system is a critical part of an automobile and should not be ignored, or a driver may find himself unable to control the vehicle.Full Answer >
If a vehicle with power steering suddenly becomes hard to turn, it is typically a sign that it doesn't have enough power steering fluid. If there is enough fluid or the issue persists after adding more, it may be necessary to have a mechanic inspect the steering column for problems.Full Answer >
Some automobiles use transmission fluid as power steering fluid, while newer vehicles use synthetic-based hydraulic fluid that is specifically made for power steering use. The four main automatic transmission fluid types are Mercon, Dexron, Type F and ATF +4.Full Answer >
When power steering makes a high-pitched noise, either the power steering fluid is low or the power steering pump is bad. It is usually difficult to turn the wheel of a car when there is a power steering problem. Although it is a less common problem, if there is a clicking sound when the wheel is turned, this indicates there is most likely a problem with the wheel bearing.Full Answer >