Latest Part Smart Article: A leaking Master Cylinder Rear Piston Seal can allow Brake Fluid to leak into the Brake Booster, causing it to fail.

Part Smart is here to help you discover, diagnose, and learn about underlying issues that could affect your vehicle’s performance. Our latest Part Smart Article covers how a leaking master cylinder can cause a vehicle’s vacuum booster to fail. When a vehicle’s vacuum booster assembly fails, it can lead to a hard brake pedal requiring excessive pedal effort to bring the vehicle to a stop.

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