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Why does my power steering keep whining?

The whine is usually created by a problem with the power steering fluid that the pump is trying to move. If you’ve kept up with regular maintenance on your car including changing your power steering fluid as recommended, then the whine is most likely due to air bubbles in your system.

Is power steering pump whine normal?

Identify the Sound Source On some older vehicles, slight power steering whine is a normal aspect of operation, often heard when turning the wheel at low speeds or when the automobile is parked. When that sound escalates to a higher-pitched squeal, however, it’s time to figure out exactly where it’s coming from.

How do you get air out of power steering WRX?

Turn the steering wheel several times lock to lock. Close the bleed valve. Add fluid. Repeat until the fluid runs air free.

Why is my brand new power steering pump whining?

You either have excessive air in the fluid of the system that will gradually work its way out over a few days to a week, or the pump is defective. Look in the power steering reservoir and you will likely see the fluid has small air bubbles in it. This is cause of the noise.

How long will a whining power steering pump last?

There is no real lifespan for these pumps and in theory, yours could last the life of the car with the right maintenance. With that being said, they generally don’t last longer than 100,000 miles and pump failures at lower mileage aren’t uncommon.

Where is the power steering bleed valve?

Locate the power steering bleed valve on the steering box. If you have difficulty finding it, just follow the high pressure line from the power steering pump to the other end, which will be in the power steering box. Push a hose on the end of the bleeding valve.

Does Subaru use ATF for power steering?

The Subaru WRX uses ATF HP/PS Power Steering Fluid. While not often considered a high maintenance item, power steering fluid is nevertheless an important part of Your vehicle’s steering system.