Pressure Bleeding

Attaching Bleeder Tube:

Tools Required: J35589 Bleeding Adapter

Note: 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 and other contaminants from entering the hydraulic system. Clean fluid reservoir cover and surrounding area. Remove fluid reservoir cover. Inspect fluid to be at proper level. Add clean brake fluid as required.

1. Connect bleeder adapter J35589 to brake fluid reservoir.
2. Connect bleeder adapter to pressure bleeding equipment.
3. ConnectClear plastic bleeder hose to rearward bleeder valve. Submerge other end of bleeder hose in clean container partially filled with brake fluid.
4. Pressurize bleed equipment to 35-70 kPa (5-10 psi) and wait for approximately 30 seconds to insure there is no leakage.

Note:Pressure bleed equipment to 205-240 kPa (30- 35 psi).

Hydraulic Modulator/Master Cylinder Assembly

Attaching Bleeder Tube:

Proceed as follows with pressure bleeding equipment connected and pressurized.

5. With bleeder hose connected to rearward bleeder valve on hydraulic modulator (refer to Figure), slowly open bleeder valve and allow fluid to flow until no air is seen in fluid.
6. Close valve when fluid flows without any air bubbles Reopen and repeat Steps 5 and 6 until no air bubbles exist. Tighten bleeder valve to 9 Nm (80 lb.in.).
7. Relocate bleeder hose on the forward bleeder valve on the hydraulic modulator and repeat Steps 5 and 6.

Brake Pipe Connections

Brake Pipe Connections:

Proceed as follows with pressure bleeding equipment connected and pressurized.

Note: Use a shop cloth to catch escaping brake fluid (refer to Figure). Take care to prevent fluid from running down motor pack and into the bottom or electrical connector. A bleeder hose is not used to bleed brake pipe connections.

8. Crack (slightly open) forward brake pipe tube nut on hydraulic modulator (refer to Figure) and check for air in escaping fluid.
9. When air flow ceases, immediately tighten tube nut. Tighten Tube nut to 24 Nm (18 lb.ft.).
10. Repeat Steps 5 and 6 for remaining three brake pipe connections, moving from front to rear.

Wheel Brakes

11. Raise vehicle and suitably support.

Bleed sequence: Right rear. Left rear. Right front. Left front.

12. Bleed wheel brakes in sequence shown above. Attach bleeder hose to bleeder valve and submerge opposite hose end in clean container partially filled with brake fluid.
13. Slowly open bleeder valve and aUow fluid to flow. Close valve when fluid begins to flow without any air bubbles. Tap lightly with a rubber mallet to dislodge any trapped air bubbles.
14. Repeat above sequence on left rear wheel brake.
15. Repeat above sequence on front wheel brakes.
16. Lower vehicle.
17. Remove bleeder adapter J35589.
18. Check fluid level in reservoir and fill to the correct level using clean brake fluid, if necessary.
19. Install fluid reservoir cover and diaphragm assembly.
20. With ignition "ON," apply brake pedal with moderate force and hold. Note pedal travel and feel. If pedal feels firm and constant and pedal travel is not excessive, start the engine. With the engine running, re-check the pedal travel. If it's still firm and constant and pedal travel is not excessive, go to Step 21. If pedal feels soft or has excessive travel either initially or after engine start. Use the Tech 1, "Release" then "Apply" the motors 2 to 3 times and cycle the solenoids 5 to 10 times. Be sure to "Apply" the front and rear motors to ensure the pistons are in the upmost position. Now repeat bleeding procedure.
21. Road test the vehicle. Make several normal (non ABS) stops from a moderate speed to ensure proper brake system function.