1. Disconnect brake lines at master cylinder.

2. Master cylinder bushing at the clutch pedal.

3. The hydraulic system comprises a master cylinder and the slave cylinders.

4. If the external normal, they should check wheel cylinder or master cylinder failure.

5. When brake pedal is pushed by the driver, brake fluid is forced into the brake cylinder by the action at the master cylinder, and the two pistons are forced outward.

6. With a hydraulic mechanism, the clutch pedal arm operates a piston in the clutch master cylinder.