Checking and adjusting
Check the regulator pressure with the vehicle emptied of cargo and all occupants except the driver, but with a full fuel tank and spare tire.
- Raise vehicle and connect pressure gauges to left front caliper and right rear brake caliper or wheel cylinder.
- Bleed both gauges.
- Lower vehicle and bounce rear of car several times.
- Depress brake pedal to obtain specified pressure at front axle, then read pressure at rear axle:
BRAKE PRESSURE REGULATOR SPECIFICATIONS (1 OF 2 ) - BAR (PSI)
| Vehicles with rear drum brakes (except Cabrio) | |
|---|---|
| Front axle pressure bar (psi) | Rear axle pressure bar (psi) |
| 50 (725) | 30 - 35 (435 - 508) |
| 100 (1450) | 51 - 56 (740 - 812) |
| Vehicles with rear disc brakes (except Cabrio) | |
| Front axle pressure bar (psi) | Rear axle pressure bar (psi) |
| 50 (725) | 28 - 34 (406 - 493) |
| 100 (1450) | 49 - 55 (711 - 798) |
BRAKE PRESSURE REGULATOR SPECIFICATIONS (2 OF 2 ) - BAR (PSI)
| Cabrio | |
|---|---|
| Front axle pressure bar (psi) | Rear axle pressure bar (psi) |
| 70 (725) | 44 - 50 (638 - 725) |
| 100 (1450) | 57 - 65 (827 - 943) |
CAUTION:
DO NOT adjust the pressure regulator with the brake pedal depressed.
- Release brake pedal.
- Adjust regulator spring tension.
- If test pressure is too high: decrease spring tension
- If test pressure is too low: increase spring tension
- Recheck regulator pressures and re-adjust if necessary.
- Disconnect pressure gauges and bleed brakes.