Disc Calipers & Pads: Removal
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1990 Pontiac Bonneville, 1990 Oldsmobile Ninety-Eight, 1990 Oldsmobile Eighty-Eight, 1990 Cadillac Fleetwood, and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
- Depressurize ABS system (if equipped). Remove and discard 2/3 of brake fluid in master cylinder reservoir to prevent overflow during servicing.
- Raise and support vehicle. Mark relationship of wheel to axle and remove front wheels. Reinstall two lug nuts to retain rotor while removing caliper. Position large adjustable pliers over inboard brake shoe flange and inboard caliper housing. Squeeze pliers to bottom piston in bore. See Fig 1 .
- If removing caliper for service, remove inlet fitting bolt from caliper. Remove boots and mounting bolts. Remove caliper or support with wire from strut. Do not let caliper hang from brake hose, or damage may occur.
- Use screwdriver to disengage buttons on shoe spring from caliper and remove shoe. Remove inboard shoe.
- Inspect mounting bolts and sleeves for corrosion or wear. Inspect mounting bolt bushings for cuts and nicks. If necessary, replace with new parts. Do not attempt to polish or wire brush bolts or sleeves.