The Importance Of A Car Power Steering Pump

The car power steering pump is one of the most important components in your power steering system. A malfunctioning power steering pump can seriously impact your ability to steer the vehicle properly. The power steering pump works by pushing hydraulic fluid to the steering gear through a series of hoses. It also has valves to direct the fluid flow.

Pressure Capacity

A car power steering pump uses hydraulic pressure to help you steer your vehicle. This process is similar to using hydraulic pressure to move something like a backhoe or a forklift. As the system moves the wheel to one side or the other, it builds up a pressure within the fluid, which is transferred to your tires. A pump that has been compromised, leaking or running low can cause the wheels to lose steering assist and make it harder to turn.

GM pumps typically have a combination flow control and pressure relief valve in their outlet port that can be changed to different settings based on what system they are pumping for. Steering gear applications and heavier vehicles may need a higher output pressure to handle the additional cornering loads. Rack-and-pinion steering, on the other hand, is generally happier at a lower operating pressure of about 850 to 950 psi.

Pump Type

The power steering pump is a crucial component of your vehicle’s hydraulic system. It’s located on the engine, and it sends pressurized fluid to the steering gear.Power steering pumps work by spinning a rotor that traps the fluid inside. It increases pressure as the rotor spins, pushing it out of the housing and through the outlet. Vane pumps are the most common type of pump, and they trap the fluid between a rotor and an outer diameter of vanes fitted to the housing walls. A pump’s output is proportional to the car’s engine speed. A flow-control valve prevents a build-up of too much pressure at high speeds.

Pressure Hoses

Power steering pressure hoses carry the hydraulic fluid from your car’s power steering pump to either the rack and pinion or steering gear box. This is one of the most important parts of a power steering system, so it’s vital to keep it working properly and notice any signs of failing hoses like a burning smell under the hood that can signal a serious issue. These hoses are manufactured to handle high pressure and temperatures, sometimes over 1500 pounds per square inch and 300 degrees Farenheit. Over time, they can become soft, brittle or develop leaks.

Return Hoses

The return hoses in your car power steering system help you to steer by delivering pressurized fluid back and forth between the pump and the steering gear. These hoses are made with high-quality materials like CSM to withstand the pressure and temperatures created by the pump. The hoses deliver the fluid to the steering gear by creating hydraulic pressure that lets you turn the wheel easily. The fluid also helps you to veer out of the way in split-second situations.


The power steering pump is the heart of your car’s hydraulic system to know more click here It circulates pressurized power steering fluid from a storage reservoir to the steering box through a series of valves, ports, and a piston and cylinder. The fluid helps the pump lubricate and cool its parts, keeping them in safe operating temperatures. Without enough fluid, the pump may overheat and fail.

When you start to notice a problem with your steering, it’s important to take care of the issue immediately. You’ll need to get your belt replaced and the pump checked for fluid leaks.

Final Thought

A properly functioning power steering system is an invaluable feature of most modern cars. A worn or failing belt can result in a number of problems, including grinding when you turn the wheel and squealing sounds from the engine.

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