A power steering system relies on pressurised fluid to move your car's steering rack. It makes it much easier for you to perform a three-point turn or reverse into a narrow parking spot. These systems will work well for long periods of time without too much maintenance, but occasionally, issues can arise. More often than not, these problems are centred around the power steering pump, and it helps to know what to look for. So, how does the pump work, and how do you know if it's about to fail?

How Everything Works

The power steering pump is located near the bottom of the steering column and connected to the engine through a pulley and belt system. When the engine turns, it powers up the rotor inside the pump, which will spin at high speed. As it does so, the pump can pressurise the fluid and move it to the most appropriate location within the steering rack. This pressurised fluid can then help move the steering gear in the appropriate direction and apply the correct pressure to move the wheels smoothly.

Listening for Issues

The first sign of a problem may be a whining noise. When you turn the steering wheel, you may hear this strange sound that may get louder as time goes by. You may have a leak in the system which is causing the pump to overheat, or the steering fluid level may be true low.

At another time, you may hear a completely different noise which is more akin to a high-pitched squeal. This could happen when you turn the key in the ignition and could indicate a problem with the pulley or belt. The belt may be slipping when the pump is activated and may need to be checked. Alternatively, there could be an internal issue associated with the bearing, especially if the power steering pump is rather old.

Looking for Evidence

Get into the habit of checking the garage floor each morning to look for signs of any leakage. Be familiar with the approximate location of the power steering pump and this will help you take action should you discover any tell-tale spots on the floor.

Taking Action

It's always best to check at the first signs of a potential problem and before the pump fails completely. This can be very problematic if you're driving in traffic, as you may find it difficult to turn the steering wheel without this artificial assistance. For more information on power steering system parts, contact a professional near you.

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