Here's a general outline. Specifics might vary slightly depending on the exact trim level and options on your Lumina. Always consult a repair manual specific to your vehicle year and model for precise instructions and torque specifications.
Tools You'll Need:
* Jack and jack stands: Absolutely essential for safety. Never work under a car supported only by a jack.
* Wheel chocks: To prevent the car from rolling.
* Lug wrench: To remove the wheel.
* Socket wrench set: With appropriate sizes for your lug nuts, caliper bolts, and rotor retaining hardware (if any).
* Torque wrench: Crucial for tightening bolts to the correct specifications. Using the wrong torque can damage your brakes.
* C-clamp or brake caliper compression tool: To compress the caliper piston.
* Penetrating oil (PB Blaster or similar): To help loosen rusted bolts.
* Wire brush: To clean the mating surfaces of the hub and rotor.
* New brake rotor: Make sure you get the correct one for your Lumina.
* Gloves and safety glasses: Protect yourself from grease and flying debris.
* Optional: Anti-seize compound: To prevent future corrosion on bolts.
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Jack up the front of the car and securely support it with jack stands.
2. Remove the Wheel: Remove the lug nuts and carefully take off the wheel.
3. Remove the Caliper:
* Compress the Caliper Piston: Using the C-clamp or compression tool, carefully compress the brake caliper piston. This will give you enough room to remove the rotor. Be careful not to damage the piston seal. Some pistons turn as you push them in.
* Remove Caliper Bolts: Locate the bolts holding the caliper to the caliper bracket. Spray penetrating oil if necessary and carefully remove the bolts. Support the caliper with a bungee cord or wire to prevent it from hanging by the brake line.
4. Remove the Rotor: There might be a single retaining bolt on the back of the rotor (check your manual) that needs to be removed. Otherwise, the rotor should slide right off the hub. If it's stuck, gently tap it with a rubber mallet. Don't use excessive force.
5. Clean the Hub: Thoroughly clean the mating surfaces of the wheel hub with a wire brush to remove any rust or debris.
6. Install the New Rotor: Carefully slide the new rotor onto the hub. Make sure it sits flush. If it has a retaining bolt, install and torque it to the correct specification (check your repair manual).
7. Reinstall the Caliper: Carefully reinstall the caliper, making sure the brake pads are properly seated. Tighten the caliper bolts to the correct torque specification.
8. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts snugly by hand.
9. Lower the Car: Carefully lower the car to the ground.
10. Torque Lug Nuts: Use your torque wrench to tighten the lug nuts to the manufacturer's specified torque.
11. Test Brakes: Before driving, pump the brake pedal several times to ensure the brakes are functioning properly. Then take a short test drive and check the brakes again.
Important Considerations:
* Brake Pad Inspection: While you have the caliper off, inspect your brake pads. If they're worn, replace them.
* Repair Manual: A repair manual specific to your 1997 Chevy Lumina is highly recommended. It will have detailed instructions, torque specifications, and diagrams.
* Bleeding Brakes: In some cases, you might need to bleed the brakes after replacing the rotor. This is a more advanced procedure. If you're unsure, have a mechanic do it.
Remember, this is a general guideline. Improperly performing brake work can be dangerous. If you're not comfortable with any step, consult a qualified mechanic. Your safety is paramount.
