CTS V6-3.2L VIN N (2003)
replace the caliper assembly.
14. If cracks, scoring, pitting and excessive corrosion are present in the caliper bore, replace the caliper assembly.
15. Inspect the caliper piston for cracks, scoring, and/or damage. Replace the caliper piston if any of these conditions exist.
Assembly Procedure
Notice: Refer to Fastener Notice in Cautions and Notices.
1. Install the brake caliper bleeder valve (1).
Tighten
Tighten the brake caliper bleeder valve to 14 N.m (124 lb in).
2. Install the brake caliper bleeder valve cap.
3. Lubricate the new piston seal (3) with Delco Supreme 11, GM P/N 12377967 (Canadian P/N 992667) or equivalent DOT-3 brake fluid from a
clean, sealed brake fluid container.
4. Install the new lubricated piston seal (3) into the caliper bore seal groove.
5. Make sure the seal is not twisted.
6. Lubricate the brake caliper bore and the piston (1) with brake fluid.
7. Install the caliper piston (1) into the caliper bore.
8. Install the new piston dust boot seal (2) over the piston.
9. Assemble the J 8092 and the J 45507
9.1. Using J 8092 and J 45507 fully seat the dust boot seal (2) into the caliper.
9.2. Make sure the caliper piston dust boot (2) is properly seated into the groove in the brake caliper bore.
10. Install the caliper to the vehicle. Refer to Brake Caliper Replacement - Rear. See: Brake Caliper Replacement - Rear
