LaCrosse V6-3.8L (2009)
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 finished surface area. 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 (Canadian P/N 992667) or equivalent, DOT-3 brake fluid from a
clean, sealed brake fluid container.
2. Install the lubricated, new piston seal into the caliper bore.
3. Install the caliper piston into the caliper bore. Press the piston to the bottom of the bore.
4. Install the new piston dust boot seal over the piston.
5. Use J 35777 to fully seat the caliper piston seal into the counterbore.
6. Install the bleeder valve and cap to the caliper and tighten the valve securely.
7. Install the front brake caliper to the vehicle. Refer to Front Brake Caliper Replacement (See: Removal and Replacement/Front Brake Caliper
Replacement).
