BRAKE FLUID BLEEDING

Tech Tips

If any work is performed on the brake system or if air in the brake lines is suspected, bleed air from the brake system.

Note

Wash off brake fluid immediately if it comes in contact with any painted surface.


  1. FILL RESERVOIR WITH BRAKE FLUID

    Fluid
    SAE J1703 or FMVSS No. 116 DOT3

  2. BLEED AIR FROM BRAKE MASTER CYLINDER

    Tech Tips

    If the master cylinder has been disassembled or if the reservoir becomes empty, bleed air from the master cylinder.


    1. Using a union nut wrench, disconnect the 2 brake lines from the master cylinder.

    2. A01J701

      Slowly depress and hold the brake pedal.

    3. A01J5GH

      Cover the outer holes with your fingers, and release the pedal.

    4. Repeat the 2 previous steps 3 or 4 times.

    5. Using a union nut wrench, connect the 2 brake lines to the master cylinder.

      Torque:
      15 N*m  { 155 kgf*cm, 11 ft.*lbf }

      Note

      Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Click here.

  3. BLEED AIR FROM LOAD SENSING VALVE BODY


    1. Remove the bleeder plug cap.

    2. A01J32M

      Connect the vinyl tube to the bleeder plug.

    3. Depress the brake pedal several times, and then loosen the bleeder plug with the pedal depressed.

    4. When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.

    5. Repeat the 2 previous steps until all the air in the brake fluid is gone.

    6. Tighten the bleeder plug.

      Torque:
      11 N*m  { 107 kgf*cm, 8 ft.*lbf }

    7. Install the bleeder plug cap.

  4. BLEED AIR FROM BRAKE LINE

    A01J3W6

    1. Remove the bleeder plug cap.

    2. Connect the vinyl tube to the bleeder plugs.

    3. Depress the brake pedal several times, and then loosen the bleeder plug with the pedal depressed.

    4. When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.

    5. Repeat the 2 previous steps until all the air in the brake fluid is gone.

    6. Tighten the bleeder plug.

      Torque:
      11 N*m  { 110 kgf*cm, 8 ft.*lbf, for front brake }
      10 N*m  { 102 kgf*cm, 7 ft.*lbf, for rear brake }

    7. Install the cap.

    8. Bleed air from the brake line for each wheel by repeating the above procedures.