GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 Matiz 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Power Vacuum Brake Booster Replacement

Power Vacuum Brake Booster Replacement Left-Hand Drive

Removal Procedure

    Object Number: 1221495 Size: SH
  1. Remove the master cylinder assembly. Refer to Master Cylinder Replacement.
  2. Disconnect the vacuum hose from the power booster.
  3. Straighten the cotter pin and remove it (1).
  4. Remove the clevis pin (2).

    5. Object Number: 1221494 Size: SH
  5. Remove the nuts (1).

    6. Object Number: 1221493 Size: SH
  6. Remove the power booster (1).

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1221491 Size: SH

    Note: Make sure the distance from the booster to the center of the clevis bore should be 100 mm (3.94 in).

  1. Install the power booster with the new cotter pin, clevis pin and nuts (1). Tighten the nuts  to 16 N·m (12 lb ft).
  2. Install the master cylinder assembly. Refer to Master Cylinder Replacement.
  3. Connect the vacuum hose to the power booster.
  4. Bleed the brake system. Refer to Hydraulic Brake System Bleeding.

Power Vacuum Brake Booster Replacement Right-Hand Drive

Removal Procedure
  1. Remove the master cylinder assembly. Refer to Master Cylinder Replacement.
  2. Disconnect the vacuum hose from the vacuum brake booster.
  3. Remove the instrument panel assembly. Refer to Instrument Panel Assembly Replacement.
  4. Remove the evaporator unit mounting screws and move the evaporator unit to the side. Refer to Air Conditioning Evaporator Core Replacement.

    5. Object Number: 1221500 Size: SH
  5. Remove the cotter pin (1).
  6. Remove the clevis pin (2).

    7. Object Number: 1221497 Size: SH
  7. Remove the nuts (1).

    8. Object Number: 1221493 Size: SH
  8. Remove the booster (1).

Installation Procedure
  1. Verify the distance from the vacuum brake booster to the center of the clevis bore is correct.

    2. Specification
    The correct distance from the booster to the center of the clevis bore is 100 mm (3.94 in).

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1221501 Size: SH
  2. Install the booster with the new cotter pin, clevis pin and nuts (1). Tighten the nuts to 16 N·m (12 lb ft).
  3. Install the evaporator unit with the screws. Refer to Air Conditioning Evaporator Core Replacement.
  4. Install the instrument panel assembly. Refer to Instrument Panel Assembly Replacement.
  5. Connect the vacuum hose to the booster.
  6. Install the master cylinder assembly. Refer to Master Cylinder Replacement.