Here's a general outline. Specific steps and tools may vary slightly depending on your exact Focus model (sedan, wagon, etc.). Always consult a repair manual specific to your year and model for precise instructions and torque specifications.
Tools You'll Likely 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 set and ratchet: You'll need various sizes, likely including 13mm, 14mm, and possibly others.
* C-clamp or brake caliper compression tool: To compress the caliper piston. A C-clamp can work, but a dedicated tool is safer and easier.
* Pliers: For potentially removing caliper retaining pins or clips.
* Wrench (possibly open-ended or combination): May be needed for caliper bolts.
* Brake cleaner: To clean the brake components.
* Grease: For lubricating caliper pins (use caliper pin grease, not regular grease).
* New rear brake pads: Make sure you get the correct ones for your vehicle.
* Safety glasses and gloves: Always wear safety gear when working on your car.
* Torque wrench: Highly recommended for tightening bolts to the correct specification (found in your repair manual).
General Steps (Consult your repair manual for specifics):
1. Safety First: Park on a level surface, engage the parking brake, and chock the front wheels. Jack up the rear of the car and securely support it on jack stands.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Expose the Caliper: You should now see the brake caliper assembly.
4. Compress the Caliper Piston: Use the C-clamp or compression tool to push the piston back into the caliper. This creates space for the new, thicker brake pads. Be careful not to damage the piston or seal. Some pistons rotate as you push them in.
5. Remove the Old Pads: Typically, there are retaining pins or clips holding the brake pads in place. Remove these and carefully take out the old pads. Inspect the brake rotor for wear. If it's excessively worn, it will need to be replaced or resurfaced.
6. Install the New Pads: Insert the new brake pads into their respective slots. Make sure they slide freely.
7. Reassemble: Reinstall the retaining pins or clips. Lubricate the caliper pins or sliders with caliper pin grease, ensuring they move freely.
8. Reinstall the Caliper: Attach the caliper to the brake bracket.
9. Reinstall the Wheel: Put the wheel back on and tighten the lug nuts.
10. Lower the Car: Carefully lower the car to the ground.
11. Pump the Brakes: Pump the brake pedal several times to ensure the pads are making contact with the rotor.
12. Test Drive: Take a short test drive to verify that the brakes are functioning correctly.
Important Notes:
* Brake fluid: You may need to bleed the brakes if you open the brake system. This is a more advanced procedure.
* Rotor inspection: Carefully inspect your brake rotors for wear. If they are excessively worn, they'll need to be replaced or resurfaced.
* Parking brake: Some rear brake calipers have a parking brake mechanism integrated into them. Be aware of how this works during disassembly and reassembly. Consult your repair manual carefully.
This is a general guide. Always refer to a repair manual specific to your 2001 Ford Focus for detailed instructions and safety precautions. Failure to follow proper procedures could result in brake failure and serious injury. If you are unsure about any step, seek professional help.
