Buick automobiles all include front disc brakes that combine calipers, pads and rotors. Among the newer front-wheel drive fashions may function rear disc brakes as a substitute of drum brakes. Whereas changing calipers is just not a typical brake restore, it’s required to remove them in an effort to change pads or rotors. The rear calipers on Buicks combine the parking brake cable. Due to this, there’s a barely completely different process set up them than the front calipers.
Buick Brake Calipers Installation Instructions
1. Take away the hubcap(s) if relevant and loosen the lug nuts with a tire iron earlier than lifting the wheel(s) you propose to put in the caliper on.
2. Elevate and help the wheel(s) of the Buick with a jack and jack stands after which remove the lug nuts and wheels.
3. Place the C-clamp over the again of the caliper housing and the drive of the clamp onto the backing plate of the outboard pad. Tighten the clamp to compress the caliper piston.
4. Pull down on the parking brake cable (on the rear calipers solely) after which remove the cable from the cable connector on the caliper.
5. Place a drain pan under the wheel the place the brake hose attaches to the caliper.
6. Place a brake hose clamp onto the brake hose just some inches away from the place it connects to the caliper.
7. Take away the brake hose bolt from the caliper utilizing a ratchet and socket or a field-finish wrench. You’ll want to remove the previous copper washers from either side of the brake hose bolt.
8. Take away the 2 caliper information bolts with a ratchet and socket or a box-end wrench (front calipers solely). Take away simply the lower bolt on rear calipers after which pivot the caliper upward to slip it off the higher caliper pin bolt.
9. Take away the caliper anchor bolts if desired. Some substitute calipers include the caliper anchors whereas different don’t. Solely remove the anchor if you’re changing the anchor or the rotor.
10. Set up the brand new caliper by reversing the process. New calipers will include the pistons compressed. You should definitely exchange the copper washers on all sides of the brake hose bolt and reattach the parking brake cable to the rear calipers
11. Open the bleeder screw of the brand new caliper till a gradual trickle of brake fluid begins to purge from it. Make sure you align the drain pan to catch the fluid. Take away the grasp cylinder cowl and examine the fluid usually so it doesn’t run out of fluid. When a gradual trickle is achieved, tighten the bleeder screw, high off the grasp cylinder with new brake fluid after which exchange the quilt.
12. Make use of an assistant to fastidiously get into the Buick and pump the brake pedal 4 to 5 occasions. Whereas the assistant is holding pressure down on the brake pedal, reopen the bleeder screw to purge the air from the brake traces. Repeat this process till the brake pedal feels agency and the brake fluid lacks air bubbles. High off the grasp cylinder with new brake fluid once more after which change the wheel and lug nuts.
Read more : How to Install Brake Calipers on a Buick