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Hydraulic failure in the brake system
The brake system uses fluid to transfer the motion of the pedal to the activation of the brakes. A hydraulic failure occurs when this motion is not transferred. The most likely cause is a loss of brake fluid.
Table of Contents
Symptoms
Brake Pedal Easy to Press
The brake pedal is driver input mechanism for activating the movement of fluid through the brake system. The pedal experiences resistance as the fluid is compacted and pressure increases. If there is a reduction in the fluid, the pedal will experience less resistance and be easy to push.
Brakes Don't Engage
As the brake fluid is forced through the system, the brakes activate to stop the wheels. If this process is stopped, the brakes will not have enough pressure to stop the wheels.
Causes
Brake Fluid Leak
Since the brake system is operated by fluid pressure, if fluid has been lost, there will be a reduction in performance. Brake fluid can leak from many places such as the master cylinder or brake lines.
See brake fluid leaking.
