Dual Proportioning Valve
CAUTION:
Carefully monitor brake fluid level at master cylinder. Use NEW brake fluid "DOT 3". Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is splashed on paint areas, wash it away with water immediately.
- Raise and support vehicle. Connect the Brake Fluid Pressure Gauge to air bleeders of front and rear brakes on left and right side. Bleed air from the Brake Fluid Pressure Gauge. Check fluid output pressure by depressing brake pedal. See PROPORTIONING VALVE PRESSURE SPECIFICATIONS table.
- If output pressure is out of specification, replace dual proportioning valve. Bleed air after disconnecting the Brake Fluid Pressure Gauge. See BLEEDING BRAKE SYSTEM .
PROPORTIONING VALVE PRESSURE SPECIFICATIONS
| Application | Front Brake Applied Pressure psi (kg/cm2 ) | Rear Brake Output Pressure psi (kg/cm2 ) | |
|---|---|---|---|
| Altima | 1067 (75) | 740-796 (52-56) | |