Brake Pedal Sinks to Floor When Brake is Apply

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Brake Pedal Sinks to Floor When Brake is Apply


Car trouble symptoms
When the driver slightly steps on the brake pedal, the pedal sinks to the floor.

Troubleshooting problem of brake pedal that sinks to the floor
The problem of brake pedal that sinks to the floor even when the pedal is slightly pressed is an indication of master cylinder fault. The reason is there is an internal leak that occurs within the master cylinder.

Master cylinder consists of the primary and secondary piston which operates on the front or the rear brakes, both pistons are sealed with a part called the cup. When the cup is damage the brake fluid will leak that is why when the driver put the foot on the pedal and slightly press, the pedal goes to flooring.

Possible cause why brake pedal sinks to the floor

Internal leak on the master cylinder


How to fix brake pedal that sinks to the floor

This problem should be fixed by a skilled mechanic because brakes are a vital system of the car, with that said to bring the car to a reputable auto shop specializing in brake repair. Tell the mechanic to check the master cylinder and have it replace or repair whichever is necessary. Explain on the mechanic your diagnosis on the brake pedal that sinks when the brake is slightly applied.



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