Repair ABS Brakes on a GMC Sierra 1500
The ABS brakes on the GMC Sierra 1500 are comprised of brake pads, rotors and caliper pistons. Everyone of the components should be in Correct working instance to perform as designed. Worn brake pads can gouge the surfaces of the brake rotors and direction to a diminished braking performance. Scored rotors Testament again wear original brake pads prematurely. Alternate the brake pads and rotors when wear or damage is noticed to make certain protected driving.
Instructions
1. Lift the Sierra's hood and remove the crack cylinder cap. The cap sits to the hold together of the engine and covers the vehicle's reservoir of brake fluid. Siphon half of the fluid from the master cylinder with a turkey baster. Abode the cap loosely onto the reservoir container to deposit debris from the remaining fluid.
2. Loosen the lug nuts on the wheels with the tire iron or lug wrench. Lift the Motor lorry with the lifting jack and compass jack stands under the frame for flotation. Lower the GMC onto the stands. Remove the lug nuts and accept the wheels off.
3. Remove the two caliper slide bolts from the back side of the caliper with an 18 mm wrench. Lift the caliper from the brake meeting and rest it on top of the steering arm above the brake assembly. Slide the brake pads from the caliper walls.
4. Remove the rotor retaining screw from the outside surface of the disc with a T-30 Torx bit and drive.
5. Grab the rotor with two hands on opposite sides of the disc and pull it straight from the wheel hub. Use a dead-blow hammer to strike the center section of the rotor if it does not slide easily from the vehicle's wheel bolts.
6. Remove the new rotors from their packaging and clean them thoroughly with brake parts cleaner and a cloth towel. Place the new rotor onto the vehicle's wheel bolts and push it against the wheel hub. Replace the retaining screw on the outward face of the rotor.
7. Apply a thin layer of brake grease to the back sides of the new brake pads. Use anti-squeal, copper-based compound for best results.
8. Move to the driver's seat and start the engine.10. Press the brake pedal slowly to the floor and release it. Slide the new brake pads onto the sides of the caliper. Screw in the caliper slide bolts and tighten them with the wrench.
9. Place the wheel back onto the wheel bolts and screw on the lug nuts by hand. Lift the Sierra with the jack and remove the jack stands. Lower the tires to the ground and tighten the lug nuts with the tire iron. Force the caliper piston into the caliper with a C-clamp. The piston is the metal cylinder that extends from the inside of the caliper. Remove the C-clamp once the piston is fully depressed within the side of the caliper.
Repeat the depressions until the brake pedal response returns to normal. Move to the engine compartment.
11. Remove the master cylinder cap and place a funnel into the container. Fill the reservoir with DOT 3 brake fluid as needed. Remove the funnel and secure the cap onto the master cylinder. Close the GMC's hood.
