What Is A Power Steering Pump And Why Is It Important?
The power steering pump is an integral part of a vehicle’s steering system. It is used in hydraulic power steering setups, where it sends fluid under high pressure to the steering rack. This helps lighten the effort needed to turn the steering wheel.
If the pump fails, the steering will get very heavy, making it difficult to turn at slower speeds. This can be very dangerous if the pump fails suddenly and should be attended to as soon as possible.
This article will look into what a power steering pump does, where you can find it, and how it works.
A Short History Of Power Steering
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Power steering systems were experimented with as far back as the late 1800s. The first power steering system for modern passenger vehicles was introduced by Chrysler on its luxurious Imperial model in 1951. It was not until the 1960s that more mainstream vehicles were fitted with power-assisted steering. Nowadays, just about every car on the road has some form of power steering.
These early systems worked on hydraulic pressure alone, and over time, electro-hydraulic and purely electric power steering designs were developed. Many modern vehicles are moving towards electric power steering systems as they are more efficient and dispense with the hydraulic pump.
In general, a hydraulic power steering setup is considered to give a more natural steering feel, while an electric system can offer variable assistance levels and be more effectively incorporated into the vehicle’s safety systems.
That is why some companies have developed electro-hydraulic systems that try to deliver the best of both worlds. Nissan currently offers both systems on its vehicles.
What Does a Power Steering Pump Do?
The power steering pump is part of a vehicle’s steering system. It helps reduce the physical effort required to turn the steering wheel. This is particularly noticeable when parking, driving at low speeds, or maneuvering in tight spaces. It is especially important in larger, heavier vehicles and ones fitted with wide tires. Without a functioning power steering pump, the steering can feel heavy and leaden.
Where Is the Power Steering Pump?
The power steering pump is typically located in the engine bay of a vehicle. It's usually mounted on the engine itself and is driven by the engine's crankshaft via a belt and pulley system. While the exact location depends on the make and model of your vehicle, it is usually located close to the power steering fluid reservoir. If you do not see a power steering reservoir, your vehicle may be fitted with an electric power steering system.
What Does a Power Steering Pump Look Like?
The pump itself is often shaped like a small, round metal canister or a box with hoses connected to it. It usually has a shaft in one end, which is connected to a pulley or gear. Most are made from either aluminum or steel.
How Does A Power Steering Pump Work?
The power steering pump is driven by the car’s engine via a belt and pulley system. As the engine runs, it powers the pump. This circulates power steering fluid under high pressure to the steering rack. This process significantly reduces the effort needed to turn the wheels.
Essentially, the pump translates the mechanical energy from the engine into hydraulic energy, which is then used to assist in steering. On vehicles with purely electric power steering, there is an electric motor that does the job of the hydraulic power steering pump.
How Long Should A Power Steering Pump Last?
Power steering pumps should last between 60,000 and 100,000 miles before needing replacement. The exact figure depends on the quality of the power steering fluid used, the frequency of fluid changes, and driving conditions.
Driving over rough roads or extensive city driving can put extra strain on the pump which may shorten its lifespan.
Factors Affecting Power Steering Pump Lifespan
- Driving conditions and style
- Quality of power steering fluid
- Frequency of power steering fluid changes
Get Your Genuine Power Steering Pump From Nissan Parts Plus
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The power steering pump is a key component in modern vehicles. Ensuring ease of steering and improved vehicle control. If your pump needs replacing, only use OEM parts to ensure that everything works as intended by the manufacturer.
Nissan Parts Plus is part of a family-owned Nissan Dealership in Massachusetts, and our knowledgeable team is ready to provide you with the right OEM part at wholesale prices. Use our VIN decoder to ensure you get the right part the first time. You can contact us online or call us at 1-888-370-4432.