Parts for your 2021 Subaru Outback-Power steering pump

Power Steering Pump on the 2021 Subaru Outback: What You Need to Know

The 2021 Subaru Outback is a popular choice among Aussie drivers who want a reliable and capable SUV with a good blend of on-road comfort and off-road prowess. When it comes to steering, many vehicles rely on a power steering pump to ease the effort required to turn the wheel. But does the 2021 Outback actually use a power steering pump? Let's dive into the details.

For the 2021 Subaru Outback, the answer is that it does not use a traditional hydraulic power steering pump. Instead, Subaru has moved towards electric power-assisted steering (EPAS) systems in this model. This means the steering assistance comes from an electric motor, not from a hydraulic pump driven by the engine via a belt. This shift has been common across many automakers in recent years because it offers several advantages over the conventional hydraulic system.

Why no power steering pump? The electric power-assisted steering system replaces the need for a hydraulic pump altogether. Instead of relying on hydraulic fluid pressure created by the pump, the EPAS system uses sensors and an electric motor to provide the necessary steering assist. This means there is no power steering fluid, hoses, or pump pulley to maintain or replace. It also means fewer moving parts under the bonnet and improved fuel efficiency since the electric motor only draws power when steering assistance is actually needed.

In short, the 2021 Subaru Outback is fitted with an electric power steering system, so there is no power steering pump installed in this model. So if you ever come across advice on servicing or replacing the power steering pump on this specific vehicle, it won't be relevant.

Now, for those who do own vehicles equipped with traditional hydraulic power steering pumps, understanding how they work and how to maintain them is useful information. While the 2021 Outback doesn't rely on a pump, the following might still be handy knowledge if you're curious or have other cars with hydraulic steering.

The power steering pump's main job is to supply hydraulic pressure to help turn the wheels easily. When you turn the steering wheel, the pump pressurises hydraulic fluid which then assists in moving the steering mechanism, making it a lot easier to steer especially at low speeds or when parking. The pump is usually driven by a belt connected to the engine, and it ensures consistent pressure is available whenever the steering wheel is moved.

Like any mechanical part, power steering pumps can wear out over time. Common signs of a failing power steering pump include:

• Increased steering effort - the wheel feels heavy or stiff
• Whining or groaning noises when turning the wheel
• Visible leaks of power steering fluid under the car
• Intermittent or jerky steering assist

If any of these issues arise, it's wise to get the pump inspected by a trusted mechanic. Sometimes it's a simple fix like topping up or replacing old fluid, but often a worn pump needs replacement to restore proper steering feel and prevent further damage.

Servicing a power steering pump involves checking the fluid level and condition regularly, ideally as part of your vehicle's scheduled maintenance. Contaminated or burnt power steering fluid can cause wear in the pump and steering rack, so flushing and refilling with fresh fluid every 50,000 to 100,000 kilometres is good practice for most vehicles that have a hydraulic system.

If a replacement pump is needed, it's important to use a genuine or high-quality aftermarket part to ensure compatibility and longevity. Additionally, when replacing the pump, any old fluid lines and seals should be inspected or swapped out to avoid leaks or air getting in the system. Bleeding the system of air pockets after installation is also critical for smooth steering operation.

For owners of the 2021 Subaru Outback, the electric power steering setup means they don't have to worry about pump belts wearing out or fluid leaks, which simplifies maintenance. However, regular checks on the steering assist system's electronic components and software updates (if applicable) should be handled by Subaru specialists during service visits to keep the steering responsive and safe.

All up, the move away from power steering pumps to electric power steering in the 2021 Subaru Outback reflects a modern trend that benefits both driver convenience and vehicle efficiency. While traditional pumps require fluid top-ups, belt inspections, and potential replacements, electric systems lean on advanced motors and sensors to make steering easier and more reliable with less upkeep.