GM Service Manual Online
For 1990-2009 cars only

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

    Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

    Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

  1. Remove the brake caliper. Refer to Front Brake Caliper Replacement or to Rear Brake Caliper Replacement.
  2. Inspect the brake caliper housing for cracks, excess wear, and/or damage. If any of these conditions are present, the brake caliper requires replacement.
  3. Inspect the caliper piston dust boot seal for cracks, tears, cuts, deterioration and/or improper seating in the caliper body. If any of these conditions are present, the brake caliper requires overhaul or replacement.
  4. Inspect for brake fluid leakage around the caliper piston dust boot seal and on the disc brake pads. If there is any evidence of brake fluid leakage, the brake caliper requires overhaul or replacement.
  5. Inspect for smooth and complete travel of the caliper pistons into the caliper bores:
  6. The movement of the caliper pistons into the caliper bores should be smooth and even. If the caliper piston is frozen or difficult to bottom, the caliper requires overhaul or replacement.

  7. In order to overhaul the caliper, refer to Front Brake Caliper Overhaul or to Rear Brake Caliper Overhaul.
  8. Install the brake caliper. Refer to Front Brake Caliper Replacement or to Rear Brake Caliper Replacement.