GM Service Manual Online
For 1990-2009 cars only

After removing the brake caliper assembly, perform the following inspection procedure:

    â€¢ Inspect the inside of the caliper assembly for signs of brake fluid leakage. If you find leakage, overhaul the caliper assembly. Refer to Brake Caliper Overhaul .
    â€¢ Inspect the mounting bolts and sleeves for corrosion. Replace corroded bolts and sleeves. Do not attempt to polish away the corrosion.