Pressure Test
- Connect pressure gauges to input and output ports of proportioning valve. See Fig 1
. Bleed brake system. See procedures under BLEEDING BRAKE SYSTEM
.
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
- Slowly depress brake pedal. Check readings on pressure gauges. Ensure output pressure begins to drop relative to input pressure at specified pressure range (split point). See SPLIT POINT PRESSURE SPECIFICATIONS table.
SPLIT POINT PRESSURE SPECIFICATIONS
| Application |
psi (kg/cm2
) |
| Hatchback |
348-420 (25-30) |
| Sedan |
420-491 (30-35) |
- Continue depressing brake pedal, and check readings on pressure gauges. See PROPORTIONING VALVE PRESSURE SPECIFICATIONS table. If fluid pressures or split point are not within specification, replace proportioning valve.
PROPORTIONING VALVE PRESSURE SPECIFICATIONS
| Application |
Inlet Pressure psi (kg/cm2
) |
Outlet Pressure psi (kg/cm2
) |
| Hatchback |
953 (67) |
519-590 (37-42) |
| Sedan |
1024 (72) |
590-661 (42-47) |