Tools You'll Likely Need:
* Jack and jack stands (essential for safety)
* Lug wrench
* Wheel chocks
* Socket wrench set (metric) with extensions and a breaker bar (possibly)
* Torque wrench
* Caliper piston compressor tool (C-clamp can sometimes work, but a proper tool is better)
* Wire brush or brake cleaner
* Anti-seize compound
* New brake rotors (make sure they're the correct ones for your DeVille)
* Gloves
* Safety glasses
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Use jack stands to support the vehicle securely after jacking it up. Never work under a car supported only by a jack.
2. Remove the Wheel: Loosen the lug nuts slightly with the lug wrench *before* jacking up the car. Jack up the vehicle and securely place it on jack stands. Remove the lug nuts completely and take off the wheel.
3. Remove the Caliper: There are usually two bolts holding the caliper to the knuckle. Unscrew these bolts and carefully remove the caliper. Support the caliper with a bungee cord or wire to prevent it from hanging by the brake line.
4. Compress the Caliper Piston: Using the caliper piston compressor tool, carefully compress the brake caliper piston. This is necessary to allow the new rotor to fit over the piston. You may need to push fluid back into the master cylinder, so have a container handy to catch any overflow (and be prepared to top off the master cylinder if needed).
5. Remove the Old Rotor: Depending on your DeVille's year, the old rotor may simply slide off, or there might be retaining screws to remove. Inspect the wheel hub for corrosion or damage. Clean it thoroughly with a wire brush.
6. Install the New Rotor: Carefully slide the new rotor onto the wheel studs. Ensure it sits flush against the hub.
7. Reinstall the Caliper: Reinstall the caliper onto its mounting bracket. Tighten the bolts to the manufacturer's specified torque.
8. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts in a star pattern. Lower the vehicle.
9. Torque Lug Nuts: Use a torque wrench to tighten the lug nuts to the manufacturer's specified torque.
10. Final Check: Pump the brake pedal several times to ensure the brakes are working correctly. Take a test drive (short and cautious) to ensure proper brake function.
Important Considerations:
* Brake Pad Inspection: While you have the caliper off, inspect your brake pads for wear. Replace them if necessary.
* Torque Specifications: Always refer to your vehicle's repair manual for the correct torque specifications for the caliper bolts and lug nuts. Over-tightening or under-tightening can cause damage.
* Brake Fluid: If you have to top off the brake fluid, make sure it's the correct type for your vehicle.
* Professional Help: If you're uncomfortable performing this task, it's best to take your vehicle to a qualified mechanic. Brake work is crucial for safety.
This is a simplified guide. Always consult a repair manual specific to your Cadillac DeVille's year and model for detailed instructions and torque specifications. Improper brake work can be extremely dangerous.
