Brake lines are hoses that transfer brake fluid from a reservoir through a pump or modulator to a brake master cylinder to create hydraulic pressure. The pressure pushes the brake pads against the disc rotor or drum brake, which slows or stops the vehicle.
If the brake fluid becomes depleted or air enters the brake lines, the brake response can weaken. The brake pedal will feel spongy when pressed. If this happens the brake lines will need to be bled or flushed and replaced if they are damaged. It’s best to find a certified mechanic to perform this service as special equipment is often required, especially if you have an anti-lock braking system (ABS).
In 2004, auto manufacturers were mandated by the federal government to equip ABS on all new cars and minivans sold in the United States.
