Stop the Noise by Bleeding a Power Steering Pump
You'll likely find that bleeding a power steering pump is the only way to silence that annoying groaning sound coming from under your hood. If you've recently replaced a hose, swapped out a rack and pinion, or just noticed the steering wheel feels a bit "notchy" when you're pulling into a parking spot, air has probably found its way into the system. Hydraulic systems hate air. While air is great for breathing, it's terrible for steering because it compresses, whereas fluid doesn't. When air bubbles get trapped in the lines, your pump starts to protest with a high-pitched whine that makes your car sound much older and more broken than it actually is. ...