Here's a general guide. Specific steps may vary slightly depending on your exact Cavalier model (e.g., 2-door, 4-door, engine type). Always consult your vehicle's repair manual for the most accurate and detailed instructions.
Tools You'll Need:
* Jack and jack stands: 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 wheels.
* Socket wrench and sockets: The sizes will depend on your car, but you'll likely need various metric sizes.
* C-clamp or caliper piston compressor tool: To compress the brake caliper piston.
* Wrench for caliper mounting bolts: Likely a 13mm or 14mm.
* Penetrating oil (like PB Blaster): To help loosen rusted bolts.
* Gloves: To protect your hands.
* New brake pads: Make sure you get the correct pads for your Cavalier's model and year.
* Brake cleaner: To clean the caliper and rotor.
* Safety glasses: Protect your eyes from flying debris.
Steps:
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks on the wheels *opposite* the one you're working on.
2. Raise and Secure the Vehicle: Jack up the car and securely place it on jack stands under the frame near the wheel you're working on.
3. Remove the Wheel: Remove the lug nuts and take off the wheel.
4. Expose the Brake Caliper: You'll now see the brake caliper clamping onto the rotor.
5. Compress the Caliper Piston: This is crucial. Use the C-clamp or caliper piston compressor tool to push the piston back into the caliper. This creates the space needed for the new, thicker brake pads. Be careful not to damage the piston seal. Some tools are designed to turn the piston, others just push it straight back.
6. Remove the Old Brake Pads: There are usually two pins or clips holding the brake pads in place. Remove these pins/clips and carefully take out the old pads. Inspect the caliper slides (if applicable) for smooth movement and lubricate them if needed with caliper grease.
7. Clean the Caliper and Rotor: Use brake cleaner to thoroughly clean the caliper, rotor, and any other surfaces where the pads contact.
8. Install the New Brake Pads: Carefully insert the new brake pads into the caliper. Make sure they slide in easily and fit snugly.
9. Reinstall the Caliper: Reinstall the caliper mounting bolts and tighten them to the manufacturer's specifications (check your repair manual).
10. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts.
11. Lower the Vehicle: Carefully lower the vehicle to the ground.
12. Tighten Lug Nuts: After the car is on the ground, fully tighten the lug nuts in a star pattern.
13. Pump the Brakes: Get back in the car and firmly pump the brake pedal several times to ensure the new pads are making contact with the rotors.
14. Test Drive: Take a short, careful test drive to ensure the brakes are working correctly. If you notice anything unusual, stop immediately and re-check your work.
Important Considerations:
* Rotor Inspection: While you're in there, inspect the brake rotors for wear and tear. If they're significantly worn or damaged, they'll need to be replaced or turned.
* Caliper Inspection: Inspect the caliper slides and boots for any damage or wear. Replace if necessary.
* Brake Fluid: While not directly related to pad replacement, it's a good idea to check your brake fluid level and consider a flush and bleed if necessary. Low brake fluid can indicate a leak somewhere in the system.
This is a simplified guide. Again, always consult your vehicle's repair manual for the most accurate instructions and torque specifications. If you're unsure about any step, seek professional help. Brake safety is paramount.
