DIY Guide: How to Replace the Power Steering Unit in Your 2005 Subaru Legacy GT

Are you tired of spending a fortune on car repairs and maintenance? Do you want to take control of your vehicle’s well-being? Look no further! This step-by-step guide will help you replace the power steering unit in your 2005 Subaru Legacy GT.

Before we dive in, make sure you have the necessary tools and equipment. You will need a socket set, pliers, a power steering pulley removal tool, power steering fluid, and a power steering pressure tester. It’s also important to wear safety gear such as gloves and eye protection while working on your car.

Step 1: Preparation

Park your car on a flat surface and turn off the engine. Disconnect the battery to avoid any electrical shocks. Locate the power steering pump and unscrew the cap to release the pressure.

Step 2: Removing the Old Power Steering Unit

Remove the power steering pump belt by releasing the tensioner. Then, use pliers to remove the hoses from the pump. Be careful not to spill any power steering fluid, as it is highly corrosive and can damage your car’s paint.

Remove the power steering pump pulley using a power steering pulley removal tool. Then, remove the pump mounting bolts and lift the pump out of the vehicle.

Step 3: Installing the New Power Steering Unit

Install the new power steering unit in the same position as the old one. Reinstall the mounting bolts and the power steering pump pulley. Use the power steering pressure tester to ensure that the unit is functioning correctly.

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Connect the power steering hoses to the new unit and install the power steering pump belt. We recommend using a new belt, as the old one may have stretched over time and not provide adequate tension.

Step 4: Testing the System

Refill the power steering fluid reservoir with the manufacturer’s recommended fluid. Reconnect the battery and start the engine. Turn the steering wheel in both directions to circulate the fluid through the system. Check for any leaks or unusual noises.


If you encounter any issues during the replacement process, don’t panic. Here are a few common problems and their solutions:

Problem: The power steering fluid is leaking.

Solution: Check for any loose connections and tighten them. Replace any damaged hoses or seals.

Problem: Unusual noises when turning the steering wheel.

Solution: Check the power steering pump and fluid levels. Replace the power steering pump or seek professional help if necessary.

The Benefits of DIY Maintenance

By choosing to replace the power steering unit yourself, you can save a considerable amount of money on labor costs. It’s also a rewarding experience that gives you a sense of accomplishment and control over your vehicle’s maintenance. Proper maintenance of your vehicle can increase its lifespan and potentially save you thousands of dollars in the long run.

Wrap Up

Replacing the power steering unit in your 2005 Subaru Legacy GT may seem daunting, but with the right tools and knowledge, it can be a straightforward process. Make sure to follow safety precautions, have patience and take your time. Good luck with your DIY maintenance journey!

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Q. Is it possible to use a remanufactured power steering unit?

A. Yes, it is possible to use a remanufactured power steering unit. However, ensure that the unit is compatible with your vehicle and meets the manufacturer’s specifications.

Q. How often should I replace my power steering unit?

A. The power steering unit does not typically need to be replaced unless there is a problem with it. Regular maintenance, such as keeping the fluid level topped up and checking for leaks, can prevent premature failure of the unit.

Q. What is the average cost of power steering unit replacement in a Subaru Legacy?

A. The cost of power steering unit replacement can vary depending on the model and year of your Subaru Legacy. On average, it can cost anywhere from $500 to $1000, including parts and labor.

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Joseph Weaver

With a background in engineering and a passion for cars, Joseph brings a unique perspective to our blog. He's particularly interested in the technology and innovation behind Subaru's advanced safety features, and his articles on this topic are always insightful and informative. When he's not writing, he enjoys playing video games and spending time with his family.

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