DeVille DTS V8-4.6L VIN 9 (2002)
5. Using a small wooden or plastic tool, remove the piston dust boot seal from the seal counterbore in the caliper and discard the boot seal.
6. Using a small wooden or plastic tool, remove the piston seal from the caliper bore and discard the piston seal.
7. Remove the bleeder valve and bleeder valve cap from the caliper body.
8. Clean the following components with denatured alcohol or equivalent.
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The bleeder valve
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The caliper bore
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The caliper passages
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The piston
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The lining contact area on the brake caliper bracket.
9. Dry the parts with non-lubricated, filtered air.
10. Replace the piston or the caliper if any of the following conditions exist:
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Scoring on the piston surface or in the caliper bore
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Corrosion on the piston
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Chrome plating damage on the piston
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Corrosion in the caliper bore. Use crocus cloth in order to polish light corrosion from the caliper bore. Replace the caliper if the corrosion
cannot be removed.
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Pitting in the caliper bore