Proportioning Valve, Without ABS

WARNING
This procedure is for cars without antilock brake system. If you have a car with antilock brakes, see Antilock Brake System, Proportioning Valve.

CAUTION:
^ 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.
^ For models with ABS, disconnect harness connectors from ABS actuator relay box before checking.

TESTING

Brake Fluid Pressure Gauge:

1. Connect brake fluid pressure gauge to air bleeders of front and rear brakes on either LH and RH side.





2. Bleed air from the brake fluid pressure gauge.

Brake Pedal Fluid Pressure:

Brake Fluid Pressure Chart:

CAUTION:
^ Depress pedal slowly when raising front brake pressure.
^ Check rear brake pressure 2 seconds after front brake pressure reaches specified value.

3. If output pressure is out of specifications, replace master cylinder Service and Repair as an assembly.

NOTE:
^ Carefully monitor brake fluid level at master cylinder.
^ Use new "DOT 3" brake fluid.
^ Never reuse drained brake fluid.

4. Bleed air from the hydraulic system after disconnecting the brake fluid pressure gauge. Service and Repair