Sierra 1500 2WD V8-5.3L Hybrid (2004)
13. Remove the caliper guide pin bolts.
14. Remove the brake caliper from the vehicle.
15. Inspect the caliper assembly. Refer to Brake Caliper Inspection.
Installation Procedure
1. Important:
Use denatured alcohol to clean the outside surface of caliper boot before installing new brake pads.
If you are installing new brake pads, use a C-clamp in order to compress the piston to the bottom of the caliper bore. Use the old brake pad, a
metal plate or a wooden block across the face of the piston in order to protect the piston and the caliper boot.
2. Important:
Use a small flat-bladed tool and lift the inner edge caliper boot next to the piston to release any trapped air.
Ensure that the piston boot is below the level of the piston face.
3. Install the caliper to the caliper mounting bracket.
4. Perform the following procedure before installing the caliper guide pin bolts (15 Series pickups only).
1. Remove all traces of the original adhesive patch.
2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
3. Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
