How is the power steering system bled?

How is the power steering system bled?

• A. Pumping the brake pedal
• B. Turning the steering wheel
• C. Opening the reservoir drain valve
• D. Removing and replacing the power steering fluid

Answer: (B)

Bleeding the power steering system is about removing air that can get trapped in the hydraulic circuit. The best way to do this is to turn the steering wheel from lock to lock several times with the engine running. This motion cycles the fluid through the pump, rack, and hoses, carrying air bubbles back toward the reservoir where they can escape. As you do this, keep an eye on the fluid level and top it up as needed so the pump stays lubricated and doesn't draw air back in. Pumping the brake pedal isn’t part of power steering bleeding—it’s a method used for brakes. Opening a drain valve or removing and replacing the fluid can help or refresh the fluid, but they don’t reliably purge air from the entire system. Turning the wheel to circulate fluid remains the effective method for removing air.

Bleeding the power steering system is about removing air that can get trapped in the hydraulic circuit. The best way to do this is to turn the steering wheel from lock to lock several times with the engine running. This motion cycles the fluid through the pump, rack, and hoses, carrying air bubbles back toward the reservoir where they can escape. As you do this, keep an eye on the fluid level and top it up as needed so the pump stays lubricated and doesn't draw air back in.

Pumping the brake pedal isn’t part of power steering bleeding—it’s a method used for brakes. Opening a drain valve or removing and replacing the fluid can help or refresh the fluid, but they don’t reliably purge air from the entire system. Turning the wheel to circulate fluid remains the effective method for removing air.