Hydraulic System: Service and Repair

Pressure Flushing

^ Tools Required
- J29532 Diaphragm Type Brake Bleeder
- J35589 Compact Brake Bleeder Adapter

Notice: Pressure Bleeding equipment can be used to perform the flush procedure. The pressure bleeding equipment used for flushing must be of the diaphragm type. It must a have a rubber diaphragm between the air supply and the brake fluid to prevent air, moisture, and other contaminants from entering the hydraulic system.

1. Clean the brake fluid reservoir cover and the surrounding area.
2. Remove the brake fluid reservoir cover.
3. Remove any remaining brake fluid in the reservoir.
4. Fill the brake fluid reservoir with clean brake fluid. Refer to Master Cylinder Reservoir Filling.





5. Install the J35589 to the brake fluid reservoir.
6. Connect the J29532 brake fluid hose to the bleeder adapter.
7. Adjust the pressure bleeding equipment to 35 - 70 kPa (5 - 10 psi) and wait for approximately 30 seconds in order to ensure there is no leakage.
8. Adjust the pressure bleeding equipment to 205 - 240 kPa (30 - 35 psi).
9. Raise and suitably support the vehicle. Refer to Vehicle Lifting.





10. Flush the brakes in the following sequence:
^ Right rear
^ Left front
^ Left rear
^ Right front

11. Attach the bleeder hose (3) to the bleeder valve at each wheel.
12. Place the other end of the bleeder hose into a container (2) in order to collect the draining brake fluid.
13. Slowly open the bleeder valve and allow the fluid to flow.
14. Close the valve when clean brake fluid begins to flow or at least235 ml (8 oz) of fluid accumulates.
14.1. Tighten the front caliper bleeder valves to 13 Nm (115 inch lbs.).
14.2. Tighten the rear caliper bleeder valves to 7 Nm (62 inch lbs.).
14.3. Tighten the rear wheel cylinder bleeder valves, if equipped, to 7 Nm (62 inch lbs.).

15. Remove the bleeder adapter.
16. Replace all of the following rubber components:
^ The brake hose assemblies. Refer to Brake Hose Replacement-Front, and Brake Hose Replacement-Rear (Disc) or Brake Hose Replacement-Rear (Drum) if equipped.
^ The wheel cylinder. Refer to Wheel Cylinder Overhaul if equipped.
^ The master cylinder rubber parts. Refer to Master Cylinder Overhaul.
^ The brake caliper seals. Refer to Brake Caliper Overhaul-Front, and Brake Caliper Overhaul-Rear.

17. Replace the brake pressure modulator valve. Refer to Brake Pressure Modulator Valve (BPMV) Replacement.
18. Inspect the brake fluid level in the reservoir. Fill the reservoir to the correct level if necessary.
19. Install the brake fluid reservoir cap.
20. Bleed the entire brake hydraulic system. Refer to Hydraulic Brake System Bleeding.
21. Lower the vehicle.

Manual Flushing

Important: Use a suitable container and/or shop rags in order to catch fluid and prevent the fluid from contacting any painted surfaces.

1. Clean the brake fluid reservoir cover and the surrounding area.
2. Remove the brake fluid reservoir cover.
3. Remove any remaining brake fluid in the brake fluid reservoir.
4. Fill the brake fluid reservoir with clean brake fluid. Refer to Master Cylinder Reservoir Filling.





5. Install the brake fluid reservoir cover.
6. Raise and suitably support the vehicle. Refer to Vehicle Lifting.





7. Flush the brakes in the following sequence:
^ Right rear
^ Left front
^ Left rear
^ Right front

8. Attach the bleeder hose (3) to the bleeder valve at each wheel.
9. Place the other end of the bleeder hose into a container (2) in order to collect the draining brake fluid.
10. Slowly open the bleeder valve and allow the fluid to flow.
11. Close the valve when clean brake fluid begins to flow or at least 235 ml (8 oz) of fluid accumulates.
11.1. Tighten the front caliper bleeder valves to 13 Nm (115 inch lbs.).
11.2. Tighten the rear caliper bleeder valves to 7 Nm (62 inch lbs.).
11.3. Tighten the rear wheel cylinder bleeder valves, if equipped, to 7 Nm (62 inch lbs.).

12. Replace all the following rubber components:
^ The brake hose assemblies. Refer to Brake Hose Replacement-Front, and Brake Hose Replacement-Rear (Disc) or Brake Hose Replacement-Rear (Drum) if equipped.
^ The wheel cylinder. Refer to Wheel Cylinder Overhaul if equipped.
^ The master cylinder rubber parts. Refer to Master Cylinder Overhaul.
^ The brake caliper seals. Refer to Brake Caliper Overhaul-Front, and Brake Caliper Overhaul-Rear.

13. Replace the brake pressure modulator valve. Refer to Brake Pressure Modulator Valve (BPMV) Replacement.
14. Inspect the brake fluid level in the reservoir. Fill the reservoir to the correct level if necessary.
15. Install the brake fluid reservoir cap.
16. Bleed the entire brake hydraulic system. Refer to Hydraulic Brake System Bleeding.
17. Lower the vehicle.