Disc brake pads — replacement
Warning: Disc brake pads must be replaced on both front or rear wheels at the same time — never replace the pads on only one wheel. Also, the dust created by the brake system is harmful to your health. Never blow it out with compressed air and don’t inhale any of it. An approved filtering mask should be worn when working on the brakes. Do not, under any circumstances, use petroleum-based solvents to clean brake parts. Use brake system cleaner only!
Front
1. Remove the cap from the brake fluid reservoir.
2. Loosen the wheel lug nuts, raise the vehicle and support it securely on jack stands. Block the wheels at the opposite end.
3. Remove the wheels. Work on one brake assembly at a time, using the assembled brake for reference if necessary.
4. Inspect the brake disc carefully as outlined in Brake disc — inspection, removal and installation. If machining or replacement is necessary, follow the information in that Section to remove the disc, at which time the pads can be removed as well.
5. Push the piston back into its bore to provide room for the new brake pads. A C-clamp can be used to accomplish this (see illustration). As the piston is depressed to the bottom of the caliper bore, the fluid in the master cylinder will rise. Make sure that it doesn’t overflow. If necessary, siphon off some of the fluid.
i. 5 Before removing the caliper, be sure to depress the piston into the bottom of its bore in the caliper with a large C-clamp to make room for the new pads
6. Follow the accompanying photos (illustrations 4.6a through 4.6k) for the actual pad replacement procedure. Be sure to stay in order and read the caption under each illustration.
i. 6a Always wash the brakes with brake cleaner before disassembling anything
i. 6b to remove the caliper, remove the lower bolt (A) while holding the sliding pin with an open-end wrench; also remove the upper bolt (B)
i. 6c Slide the caliper off of the brake pads and secure it so that the flexible brake hose is not being stretched or pinched
i. 6d Remove the outer brake pad…
i. 6e… and the inner pad
i. 6f Remove the brake pad support plates
i. 6g Lubricate the support plates where the pad will contact them
i. 6h Install the support plates
i. 6i Lubricate the caliper guide pins
i. 6j Install the replacement brake pads in the caliper mounting bracket
i. 6k Tighten the caliper mounting bolts to the specified torque
7. When reinstalling the caliper, be sure to tighten the mounting bolts to the torque listed in this Chapter’s Specifications. After the job has been completed, firmly depress the brake pedal a few times to bring the pads into contact with the disc. Check the level of the brake fluid, adding some if necessary. Check the operation of the brakes carefully before placing the vehicle into normal service.
Rear disc brakes
8. Wash the brakes with brake cleaner before disassembling anything (see illustration).
i. 8 Rinse off any brake dust and debris with brake cleaner. Do NOT use compressed air
9. Push the piston back into its bore to provide room for the new brake pads. A C-clamp can be used to accomplish this (see illustration). As the piston is depressed to the bottom of the caliper bore, the fluid in the master cylinder will rise. Make sure that it doesn’t overflow. If necessary, siphon off some of the fluid.
i. 9 Press the caliper piston back in with a C clamp
10. Follow the accompanying photos (illustrations 4.10a through 4.10h) for the actual pad replacement procedure. Be sure to stay in order and read the caption under each illustration.
i. 10a
Remove the upper caliper bolt by holding the pin with an open-end wrench while using a socket on the retaining bolt
i. 10b
You can gain access to the brake pads by rotating the caliper on the lower pin and hang the caliper in this position with a wire
i. 10c
Remove the brake pads, then remove the brake pad retaining clips by prying them out with a screwdriver
i. 10d
Before installing the replacement retaining clips, lubricate where the brake pads will come in contact with the clips.
i. 10e
Don’t forget to lubricate the upper guide pin
i. 10f
Slide the lower guide pin out of the housing and lubricate the lower pin as well
i. 10g
with the lower pin back in place, install the replacement brake pads
i. 10h
Tighten the caliper mounting bolts to the specified torque
11. When reinstalling the caliper, be sure to tighten the mounting bolts to the torque listed in this Chapter’s Specifications. After the job has been completed, firmly depress the brake pedal a few times to bring the pads into contact with the disc. Check the level of the brake fluid, adding some if necessary. Check the operation of the brakes carefully before placing the vehicle into normal service.