Here's a general overview. Specific steps and tools may vary slightly depending on the exact model and trim level of your Focus:
Tools You'll Likely Need:
* Wheel Chocks: Essential for safety.
* Jack and Jack Stands: Never work under a car supported only by a jack.
* Lug Wrench: To remove the wheel.
* Torque Wrench: Crucial for tightening bolts to the correct specification. Incorrect torque can damage components.
* Hammer and Punch: For driving out components.
* Socket Set (Metric): A wide range of sizes will be needed.
* Ball Joint Separator: To separate the ball joint from the steering knuckle.
* Tie Rod Separator: To separate the tie rod from the steering knuckle.
* Bearing Race Installer/Remover: This is crucial for properly installing and removing the bearing races (inner and outer). Improper installation can damage the bearing and hub.
* Wheel Hub Puller: May be needed to remove the hub assembly.
* Penetrating Oil (PB Blaster, etc.): Helps loosen rusted or seized parts.
* Grease: For the new bearing.
* New Front Wheel Bearing Assembly: Make sure you get the correct one for your specific vehicle.
General Steps (This is NOT a complete, detailed guide; consult a repair manual):
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Wear safety glasses.
2. Remove the Wheel: Loosen the lug nuts before jacking up the car. Jack up the vehicle and securely place it on jack stands. Remove the wheel.
3. Disconnect Brake Caliper: Carefully remove the brake caliper and hang it securely using a wire or bungee cord to prevent stressing the brake line.
4. Disconnect ABS Sensor (if applicable): Carefully disconnect the ABS sensor wire from the hub.
5. Separate Ball Joint and Tie Rod: Use the appropriate separators to separate the ball joint from the control arm and the tie rod from the steering knuckle. This often requires considerable force and is a common sticking point.
6. Remove the Wheel Hub Assembly: This may require the use of a wheel hub puller. The hub assembly is typically held on by several bolts.
7. Remove the Old Bearing: Using the bearing race remover, carefully remove the inner and outer bearing races from the hub assembly. The bearing itself is usually pressed into the hub.
8. Install the New Bearing: Using the bearing race installer, carefully install the new inner and outer races into the hub assembly. Press the new bearing into the hub (this usually requires a press). Precision is critical here to avoid damaging the new bearing.
9. Reassemble: Reinstall the hub assembly, making sure everything aligns correctly. Reattach the tie rod and ball joint. Reconnect the brake caliper and ABS sensor.
10. Torque Specifications: Tighten all bolts to the manufacturer's specified torque values, found in a repair manual. This is incredibly important to prevent damage and ensure safe operation.
11. Reinstall Wheel: Install the wheel and tighten the lug nuts to the specified torque.
12. Lower Vehicle: Carefully lower the vehicle from the jack stands.
13. Test Drive: Test drive the vehicle to ensure the new bearing is functioning correctly. Listen for any unusual noises.
Crucial Considerations:
* Repair Manual: Obtain a repair manual specific to your 2001 Ford Focus. This will provide detailed instructions, diagrams, and torque specifications. This is highly recommended and will make the job significantly easier and safer.
* Pressed-in Bearings: The bearing is often pressed into the hub, requiring a press or specialized tools for removal and installation.
* Hub Assembly: Sometimes, the entire hub assembly is replaced rather than just the bearing. This simplifies the job but is more expensive.
* Professional Help: If you're not comfortable with any of these steps, take your car to a qualified mechanic. A poorly installed wheel bearing is a serious safety hazard.
This is a simplified overview. Always consult a repair manual for your specific vehicle before attempting this repair. Improper installation can lead to serious injury or damage to your vehicle.
