Disc Brake Mounting and Hardware Inspection
WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Refer to Brake Dust Caution
in Cautions and Notices.
CAUTION:
Refer to Brake Fluid Irritant Caution
in Cautions and Notices.
- Inspect the fluid level in the brake master cylinder reservoir.
- If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
- If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
- Install a large C-clamp, over the body of the brake caliper with the C-clamp ends against the rear of the caliper body and against the outer brake pad.
- Tighten the C-clamp until the caliper piston is compressed into the caliper bore leaving a gap of approximately 10 mm (0.38 in) between the disc brake pads and the brake rotor.
- Remove the C-clamp from the caliper.
- Grasp the brake caliper and attempt to move the brake caliper vertically. The brake caliper should not exhibit excessive looseness.
- Grasp the brake caliper and move the brake caliper inboard and outboard. The brake caliper should slide smoothly with minimal force.
- Inspect the disc brake pad retainers.
- Inspect the disc brake pad mounting hardware and the disc brake pads for the following:
- Bent mounting tabs
- Excessive corrosion
- Looseness at the steering knuckle
- Looseness at the disc brake pads
- Missing mounting hardware
- If any of the conditions listed are found, the disc brake pads require replacement.
- Ensure the disc brake pads are held firmly in place on the steering knuckle, yet slide easily on the knuckle without binding.
- Inspect the brake caliper bolts (1) by gently pulling the caliper outward, then push the caliper inward, and observe for the following:
- Bent or damaged brake caliper bolts (1)
- Bent or damaged brake caliper assembly
- Restricted caliper sliding movement
- Corrosion
- Split or torn bushings (2)
- Missing bushings
- Looseness in the brake caliper assembly
- Seized caliper bolts
- If any of the conditions listed are found, the brake caliper mounting hardware requires replacement.