The vehicle's power steering pump may be used to supply power to the Hydro-boost power brakes.

The vehicle's power steering pump may be used to supply power to the Hydro-boost power brakes.

• A. Vacuum Pump
• B. Power Steering Pump
• C. Alternator
• D. Water Pump

Answer: (B)

Hydro-boost brake systems use hydraulic pressure from the power steering system to provide brake assist. The power steering pump, driven by the engine, pressurizes steering fluid and sends it to the hydro-boost unit. Inside the hydro-boost, that pressure moves a piston that adds force to the brake master cylinder, making the brakes easier to apply. This is different from a vacuum booster, which relies on engine vacuum to assist braking. The other components listed don’t supply hydraulic brake assist: a vacuum pump provides vacuum for vacuum boosters, the alternator isn’t part of the braking assist, and the water pump circulates coolant.

Hydro-boost brake systems use hydraulic pressure from the power steering system to provide brake assist. The power steering pump, driven by the engine, pressurizes steering fluid and sends it to the hydro-boost unit. Inside the hydro-boost, that pressure moves a piston that adds force to the brake master cylinder, making the brakes easier to apply. This is different from a vacuum booster, which relies on engine vacuum to assist braking. The other components listed don’t supply hydraulic brake assist: a vacuum pump provides vacuum for vacuum boosters, the alternator isn’t part of the braking assist, and the water pump circulates coolant.