Pressure Test
WARNING: This page is about a different variant/trim than selected.
- Connect two pressure gauges to the output port of the master cylinder and output port of the proportioning valve. See Fig 1 .
- Bleed brake system and gauges. See BLEEDING BRAKE SYSTEM .
- Depress the brake pedal gradually. Then check that the split point, where the output fluid pressure begins to drop in proportion to the output fluid pressure, is 392-462 psi (2770-3190 kPa).
- Depress the brake pedal more strongly than at the above step. Then check that the output fluid pressure is 534-604 psi (3680-4170 kPa) when input fluid pressure is 995 psi (6860 kPa).
- Measure each output fluid pressure at both valves, and check that the difference between the two is 73 psi (500 kPa) or less. If the measured pressure exceeds the limit, replace the proportioning valve.