Power Steering Whine Fluid: How to Tell If It’s the Issue (September 2026)
Yes, low or air-filled power steering fluid causes the whining noise you’re hearing. When fluid drops below the minimum mark in the reservoir, the pump pulls in air along with fluid, and those air bubbles collapse inside the pump at high pressure. That collapse creates a high-pitched whine called cavitation. The faster the pump spins, … Read more