Proportioning Valve
- Remove the proportioning valve from the master cylinder.
- There are two pressure gauges. Connect one to the input side of the proportioning valve and the other to the output side of it.NOTE: Be sure to bleed the system after connecting the pressure gauges.
- With the brakes applied, measure the input pressure and the output pressure. If the measured pressures are within the specified range as illustrated, the proportioning valve is good. See Fig 1 .
- Reconnect the brake lines in their original positions and bleed the system. See BLEEDING BRAKE SYSTEM .