K 1500 Suburban 4WD V8-5.3L VIN Z Flex Fuel (2003)
1. Install the brake caliper bleed screw.
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Tighten the brake caliper bleed screw to 12 N.m (106 lb in).
2. Install the brake caliper bleed screw cap.
3. Lubricate the new piston seal and the brake caliper bore seal groove with brake fluid.
4. Install new the seal into the brake caliper bore seal groove.
5. Ensure that the seal is not twisted.
6. Lubricate the brake caliper bore and the piston with brake fluid.
7. Install the boot and the piston.
7.1.
Install the boot over the end of the piston so that the fold will face toward the brake caliper housing piston bore opening.
7.2.
Seat the boot into the brake caliper bore groove. Slide the piston into the brake caliper bore.
7.3.
Push down the piston to the bottom of the brake caliper bore.
7.4.
Ensure that the boot properly seats into the piston groove and into the groove in the brake caliper bore.
7.5.
Repeat steps 5 and 6 for the remaining piston.
8. Install the brake caliper to the vehicle. Refer to Brake Caliper Replacement - Rear .
25 Series
Brake Caliper Overhaul - Rear (25 Series)
Caution: Refer to Brake Dust Caution in Cautions and Notices.
Caution: Refer to Brake Fluid Irritant Caution in Cautions and Notices.
Disassembly Procedure
Important:
- Replace all the components included in the repair kits used to service this brake caliper.
- Lubricate the rubber parts with clean brake fluid to make assembly easier.
- The torque values specified are for dry, non lubricated fasteners.
- Perform the service operations on a clean bench, free from all mineral oil materials.
1. Remove the brake caliper from the vehicle. Refer to Brake Caliper Replacement - Rear .
Caution: Do not place your fingers in front of the piston in order to catch or protect the piston while applying compressed air. This could result
in serious injury.
2. Place a thin piece wood in front of the pistons in order to prevent damage. Remove the pistons by directing compressed air into the brake hose
inlet fitting port of the brake caliper housing.
