F4 - Master Cylinder Condition

- Apply pressure to pedal one full stroke and release, repeat 3 more cycles.

- Does pedal go down 3.175mm (1/8-inch) each time?

- Pedal goes down 3.175mm (1/8-inch) each time pedal is released and reapplied. Check entire brake system for major leak. Repair as required.


- Refer to Brakes Not Working, Excessive Pedal Travel, Brake Pedal Feels Spongy When Fully Applied. Spongy Pedal