Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCADILLAC1991SEVILLE STSREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESMECHANICAL - HYDRAULICDISC BRAKE SYSTEMOVERHAULDISC CALIPER - FRONTDISASSEMBLY
1991 Cadillac Seville STS
Disc Caliper - Front: Disassembly
1991 Cadillac Seville STSSECTION Disassembly
- Clean exterior of caliper with denatured alcohol and place on a clean work surface. Remove brake shoe and discard copper gasket. Drain fluid from caliper.WARNING: DO NOT attempt to catch or protect piston with fingers while applying compressed air. Injury may result. Always use eye protection when performing this step.
- Using clean shop towels to pad interior of caliper, apply just enough clean compressed air to caliper inlet so piston will ease out of bore.
- Using a screwdriver, pry boot out of caliper. Pry piston and seal from caliper using a piece of wood or plastic. DO NOT use a metal tool as bore may be damaged requiring caliper replacement. Remove bleeder valve from caliper.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.