GM Service Manual Online
For 1990-2009 cars only

Warning: Refer to Brake Dust Warning in the Preface section.


    Object Number: 2178347  Size: SH
  1. Visually inspect the adjuster actuator spring (1) for the following conditions:
  2. • Excessive stretching, twisting, or binding
    • Excessive bending or breakage at any point
    • Excessive corrosion
    • Missing

    Object Number: 2178348  Size: SH
  3. Visually inspect the adjuster actuator lever (1) for the following conditions:
  4. • Excessive bending or breakage
    • Excessive wear at the adjuster star wheel engagement point
    • Excessively bent or broken actuator spring attachment tab
    • Missing

    Object Number: 2178349  Size: SH
  5. Visually inspect the adjuster assembly (1) for the following conditions:
  6. • Bent or broken
    • Excessively worn, damaged, or missing actuator engagement teeth
    • Seized adjuster screw threads
  7. If any of the listed conditions were evident, the affected part or parts require replacement.