With J56

Front Brake Caliper Replacement

Warning: Refer to Brake Dust Warning.

Warning: Refer to Brake Fluid Irritant Warning.

Removal Procedure

1. Raise and support the vehicle.
2. Remove the tire and wheel assembly.





3. Remove the brake hose fitting bolt (1).
4. Remove the brake hose fitting gaskets (2) from the brake hose (3).

Discard the brake hose fitting gaskets.

5. Cap the brake hose fitting to prevent brake fluid loss and contamination.
6. Remove the front disc brake pads.





7. Remove the brake caliper bolts (1).
8. Remove the brake caliper from the wheel knuckle.

Installation Procedure





Note: If reusing the brake caliper bolts the threads of the bolts and the threads of the knuckle mounting holes must be free of residue and debris prior to application of threadlocker in order to ensure proper adhesion and fastener retention.

1. Prepare the bolts and the threaded holes for assembly:

^ Thoroughly clean the residue from the bolt threads by using denatured alcohol or equivalent and allow to dry.
^ Thoroughly clean the residue from the threaded holes by using denatured alcohol or equivalent and allow to dry.

2. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488), or equivalent to 2/3 of the threaded length of the caliper bolts. Ensure that there are no gaps in the threadlocker along the length of the filled area of the bolts.
3. Allow the threadlocker to cure approximately 10 minutes before installation.
4. Install the brake caliper to the wheel knuckle.

Caution: Refer to Fastener Caution.

5. Install the brake caliper bolts (1).

Tighten
Tighten the bolts to 130 N.m (96 lb ft).





Note: Install NEW copper brake hose gaskets.

6. Assemble the brake hose fitting bolt (1) and new fitting gaskets (2) to the brake hose (3).
7. Install the brake hose assembly to the brake caliper.

Tighten
Tighten the fitting bolt to 40 N.m (30 lb ft).

8. Install the front disc brake pads.
9. Bleed the hydraulic brake system.
10. With the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance.
11. Slowly release the brake pedal.
12. Wait 15 seconds, then repeat steps 10 and 11 until a firm brake pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
13. Install the tire and wheel assembly.
14. Lower the vehicle.