Aztek V6-3.4L VIN E (2001)
Important: Do not use abrasives to clean the brake caliper piston.
6. Clean the brake caliper piston bore and seal counterbore, and the caliper piston with denatured alcohol, or equivalent.
7. Dry the caliper piston bore and counterbore, and the piston with non-lubricated, filtered air.
8. Inspect the caliper bore for cracks, scoring, pitting, excessive rust, and/or excessive corrosion.
9. If light rust or light corrosion are present in the caliper bore, attempt to remove the imperfection with a fine emery paper. If the imperfection
cannot be removed, replace the caliper assembly.
10. If cracks, scoring, pitting, excessive rust, and/or excessive corrosion are present in the caliper bore, replace the caliper assembly.
11. Inspect the caliper piston for cracks, scoring, and/or damage to the chrome plating. Replace the caliper piston if any of these conditions exist.
Installation Procedure
1. Lubricate the new piston seal with Delco Supreme 11 (R) (GM P/N 12377967) or equivalent DOT-3 brake fluid from a clean, sealed brake fluid
container.
2. Install the lubricated, new piston seal (4) into the caliper bore.
3. Install the caliper piston (3) into the caliper bore.
4. Install the new piston dust boot seal (2) over the caliper piston (3).
5. Fully seat the dust boot seal into caliper counterbore.
6. Install the retaining ring that secures the dust boot to the caliper housing.
7. Install the bleeder valve and cap to the caliper and tighten the valve securely.
8. Install the rear brake caliper to the vehicle.
