Removal Procedure
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the rear brake caliper from vehicle. Refer to Rear Brake Caliper Replacement (JL9) or Rear Brake Caliper Replacement (J65) .
- Drain the brake fluid from the caliper assembly.
- Using a small wooden or plastic tool, carefully remove the brake caliper piston dust boot seal retaining ring from the groove in the caliper seal counterbore.
- Place a block of wood against the inside of the caliper body, opposite of the caliper piston.
- Direct low pressure compressed air through the caliper inlet hose to remove the caliper piston.
- Remove the piston dust boot seal (2) from the seal counterbore in the caliper and discard the dust boot seal.
- Using a small wooden or plastic tool, remove the piston seal from the caliper bore and discard the piston seal.
- Inspect the operation of the integral park brake mechanism. Rotate the park brake lever back and forth while observing the movement of the park brake mechanism actuator assembly in the caliper bore.
- If the integral park brake mechanism was not operating properly (binding or seized), replace the brake caliper assembly.
CAUTION:
Refer to Brake Dust Caution
.
CAUTION:
Refer to Brake Fluid Irritant Caution
.
NOTE:
Refer to Brake Fluid Effects on Paint and Electrical Components Notice
.
IMPORTANT:
If the brake caliper was leaking brake fluid from the REAR of the caliper past the integral park brake actuator shaft seal, replace the brake caliper assembly. The park brake integral mechanism contains a non-serviceable seal which may be allowing brake fluid to leak past it and into the non-serviceable integral park brake mechanism.
IMPORTANT:
The park brake lever, lever return spring and actuator shaft seal are not serviceable components of the integral park brake mechanism. Do not disassemble the integral park brake mechanism.