Pressure Bleeding the Brakes
CAUTION:
Pressure bleeding equipment must be of the diaphragm type. It must have a rubber diaphragm between the air supply and the brake fluid to prevent air, moisture, oil, and other contaminants from entering the hydraulic system. Contamination could lead to deterioration of the braking components and loss of braking action.
- Disconnect the master cylinder electrical connector.
- Remove the master cylinder reservoir cap.
- Connect the bleeder with the adapter to the master cylinder reservoir.
- For vehicles with the antilock braking system (ABS), locate and remove the hydraulic modulator bleeder valves. Refer to "BLEEDING SYSTEM :".
- Charge the bleeder ball to 140 to 172 kPa (20 to 25 psi).
- Connect the line to the adapter. Open the line valve.
- Raise and suitably support the vehicle.NOTE: The bleeding sequence is as follows: right rear, left front, left rear and right front.
- Attach the bleeder hose to the bleeder valve. Submerge the opposite end of the hose in a clean container partially filled with brake fluid.
- Open the bleeder valve one-half to three-fourths turn and allow the fluid to flow until no air is seen in the fluid.CAUTION: After the bleeding operation, the brake reservoir may be pressurized. While disconnecting the bleeder hose or the unthreaded adapter cap, cover the cap and the connection with a shop towel to protect painted surfaces from contact with the brake fluid.
- Inspect the brake pedal for spongeness. Repeat the entire bleeding procedure to correct this condition.