Silhouette FWD V6-3.4L VIN E (2004)
Important: Do not scratch the housing bore.
Notice:
Do not use a metal tool for seal removal. Damage to the caliper bore or the seal grooves can result.
5. Remove the piston seal (4) from the groove in the caliper bore (3). Use a small wooden or plastic tool.
6. Inspect the caliper bore (3) and the seal grooves for the following conditions: Scoring Nicks Corrosion Wear
7. Use a piece of crocus cloth in order to polish out light corrosion.
8. Replace the caliper (3) if corrosion in and around the seal groove cannot be cleaned with a piece of crocus cloth.
9. Inspect and replace any brake caliper bolt boots that exhibit any of the following conditions
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Cuts
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Tears
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Deterioration
10. Inspect the caliper bolts for corrosion or damage. If corrosion is found on the brake caliper bolt shaft, replace the brake caliper bolt, and the brake
caliper bolt boot. Do not attempt to polish away the corrosion.
11. Inspect the seal groove in the caliper bore for nicks or burrs. Replace the caliper if the seal groove is damaged.
12. Remove the bleeder valve cap (1) and the bleeder valve (2) from the brake caliper housing (3).
13. Clean all the parts with clean, denatured alcohol.
14. Dry all the parts with filtered, non-lubricated compressed air.
15. Use filtered, non-lubricated compressed air in order to blow out all of the passages in the caliper housing and the bleeder valve.
Assembly Procedure
1. Install the bleeder valve (2) and the bleeder valve cap (1) to the caliper housing.
2. Lubricate the new piston seal with Delco Supreme 11(R) GM P/N 12377967(Canadian P/N 992667) or equivalent DOT-3 brake fluid from a
clean, sealed brake fluid container.
3. Install a new lubricated piston seal (4) to the caliper bore grooves. Ensure that the piston seal is not twisted.
