Checking and Adding Fluid to Power Steering

car service

Power steering aids drivers by providing a level of power and support to the steering process, augmenting the effort supplied by the driver. This is usually automated via a system of hydraulics that uses a pump and reservoir, which sits on the engine. The fluid within the hydraulics is then applied to the steering gear through a set of hoses, and the pressure is used to reduce the amount of force needed to successfully steer the vehicle.

Checking your Car’s Power Steering Fluid

It is a very quick and simple task to check your car’s power steering fluid, which can be performed in a matter of moments. It is advisable to only ever perform these checks with the engine completely off and cooled to avoid any chance of injury from moving parts. We would also recommend that you park your car on a flat, level surface to ensure that the fluid is evenly distributed throughout the system. Take the following steps to check the fluid:

–       Locate the reservoir – this is usually located on the side of the engine with a number of tubes attached to the outside of the unit. If you are having trouble locating this part, then directions can be normally found in your owner’s manual.

–       Unscrew the cap – taking care to wipe the cap in order to ensure that no dirt falls into the reservoir. Often there will be a small dipstick attached to the underside of the cap that shows the level of the fluid within the system.

–       Check the level – there should be three marks either located on the cap’s dipstick or in some cars, there will be a transparent reservoir with the marks located on the outside of the unit. These are usually hot, cold and add. The hot mark indicates the safe level for the fluid when the engine is running and the cold level when the engine is static. If the level is at the add mark then you need to add extra fluid to the system.

Adding Power Steering Fluid

If the level of fluid in the system reaches the add marker, then it is time to top up the power steering fluid in your system. There are different types of fluid available, with older systems sometimes using transmission fluid, whilst dedicated liquids are used in later models. The type your car uses should be clearly indicated in the shop service or owner’s manual. After unscrewing the reservoir cap, carefully add fluid to the required level before fixing the cap firmly back into place.

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