Alero, Grand Am 1999-2005

Pressure Bleeding


For those who are fortunate enough to own or have access to a pressure bleeding tool, this procedure may be used to quickly and efficiently remove air from the brake system. This procedure may be used as a guide, but be careful to follow the tool manufacturer's directions closely. Any pressure bleeding tool MUST be of the diaphragm-type. A proper pressure bleeder tool will utilize a rubber diaphragm between the air source and brake fluid in order to prevent air, moisture oil and other contaminants from entering the system.

  1. Install Pressure Bleeder Adapter Cap J 35589 or equivalent, to the master cylinder.
  3. Charge Diaphragm Type Brake Bleeder J 29532 or equivalent, to 20-25 psi (140-172 kPa).
  5. Connect the line to the pressure bleeder adapter cap, then open the line valve.
  7. Raise and safely support the vehicle.
  9. If it is necessary to bleed all of the calipers/cylinders, the following sequence should be used:

    Right rear
    Left rear
    Right front
    Left front

  11. Place a proper size box end wrench (or tool J 21472) over the caliper/cylinder bleeder valve.
  13. Attach a clear tube over the bleeder screw, then submerge the other end of the tube in a clear container partially filled with clean brake fluid.
  15. Open the bleeder screw at least 3 / 4 of a turn and allow flow to continue until no air is seen in the fluid.
  17. Close the bleeder screw. Tighten the rear bleeder screws to 62 inch lbs. (7 Nm) and the front bleeder screws to 115 inch lbs. (13 Nm).
  19. Repeat Steps 6-9 until all of the calipers and/or cylinders have been bled.
  21. Carefully lower the vehicle.
  23. Check the brake pedal for -sponginess''. If the condition is found, the entire bleeding procedure must be repeated.
  25. Remove tools J 35589 and J 29532.
  27. Refill the master cylinder to the proper level with brake fluid.
  29. DO NOT attempt to move the vehicle unless a firm brake pedal is obtained.