Pressure Bleeding Procedure

If air has entered the hydraulic brake system, bleed the system. You may need to bleed the hydraulic brake system at all four wheels due to one of the following conditions:
^ Air entered the system due to a low fluid level.
^ The brake pipes have been disconnected at the master cylinder.
^ The brake pipes have been disconnected at the combination valve.

If a pipe is disconnected at one wheel, then only bleed that wheel.
If the master cylinder has been removed, bleed the master cylinder before installing it on the vehicle. This will reduce the time required to bleed the system.

NOTICE: Brake fluid will damage electrical connections and painted surfaces. Use shop cloths, suitable containers, and fender covers to prevent brake fluid from contacting these areas. Always re-seal and wipe off brake fluid containers to prevent spills.

^ Tools Required
- J 29567 Brake Bleeder Adapter
- J 28434 Wheel Cylinder Bleeder Wrench

Use a diaphragm-type pressure bleeder. The pressure bleeder must have a rubber diaphragm between the air supply and the brake fluid. This prevents air, moisture, oil and other contaminants from entering the brake hydraulic system.
1. Fill the pressure tank at least 2/3 full of brake fluid.
2. Bleed the bleeder each time you add fluid.
3. Charge the bleeder to 140-170 kPa (20-25 psi).





4. Install the J29567.
5. Bleed the Electronic Brake Control Module next if it has been replaced, or if you suspect that air is trapped inside.
6. Bleed each wheel cylinder or caliper in the following sequence:
6.1. Right rear wheel cylinder
6.2. Left rear wheel cylinder
6.3. Right front wheel caliper
6.4. Left front wheel caliper

7. Connect the hose from the bleeder to the adapter at the master cylinder.
8. Open the tank valve.
9. Attach a hose to the bleeder valve.





10. Immerse the opposite end of the hose into a container partially filled with clean brake fluid.

NOTICE: Refer to Fastener Notice in Service Precautions.

11. Slowly open the bleeder valve at least 3/4 of a turn. Allow the fluid to flow until you see no air in the fluid.

^ Tighten the wheel cylinder or caliper bleeder valve to 13 Nm (110 inch lbs.).

12. Repeat steps 7-12 at every wheel.
13. Check for softness in the brake pedal action. Repeat the bleeding procedure if the brake pedal action is soft.
14. Disconnect the hose from the bleeder adapter.
15. Remove the J 29567.
16. Fill the master cylinder to the proper level.