Chapter 50 - Brake Systems

Brake fluid serves as a lubricant for the parts of the hydraulic system and ensures smooth and even operation.

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Vehicles use brake pedal position sensors.

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• False

Rusted-through brake lines are uncommon.

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All brake fluids are hygroscopic—that is, they readily absorb water.

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Brake hoses are typically rigid steel lines used to transmit brake fluid pressure.

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Fully metallic linings require very high pedal pressure and tend to quickly wear out drums and rotors.

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Brake fluid must be able to flow freely at 500°Fahrenheit (260° Celsius) and at –104°Fahrenheit (–76° Celsius

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A brake fluid lamp will illuminate on the instrument panel if the fluid is contaminated and needs to be changed.

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Most manufacturers recommend changing the brake fluid periodically.

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Master cylinders are generally not overhauled; they are replaced with new or rebuilt master cylinders.

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