Posts Tagged: power brakes

Troubleshooting the Hissing Sound When Pressing Brake Pedal

What causes a hissing sound when pressing the brake pedal? A hissing sound when applying the brakes in a car can be concerning for any driver. This sound typically indicates an issue within the vacuum brake booster, which provides the power assist that gives you power brakes. I’ll explain a bit more about what the brake booster does and what makes it cause a hissing sound when pressing the brake pedal. How a vacuum brake booster works The vacuum brake booster consists of two main components: a vacuum chamber and … Read More