Here's a general outline of the process. Specific steps and torque specifications will vary based on your exact Prius model and year (even within 2001, there might be slight differences). Always consult a repair manual specific to your 2001 Prius for detailed instructions and torque specifications. A Haynes or Chilton manual, or a digital service manual, is a good investment.
Tools You'll Likely Need:
* Jack and jack stands: Essential for safe vehicle lifting.
* Wheel chocks: To prevent the vehicle from rolling.
* Lug wrench: To remove the wheel.
* Torque wrench: Crucial for tightening bolts to the correct specifications.
* Socket set and wrenches: Various sizes will be needed.
* Ball joint separator: To separate the ball joint from the control arm.
* Pry bar: Possibly needed for stubborn components.
* Hammer: May be needed for certain tasks.
* Penetrating oil (PB Blaster, etc.): To loosen rusted or seized bolts.
* Wheel bearing press: Essential for properly pressing the old bearing out and the new one in. Improperly installing the bearing can cause premature failure.
* New rear wheel bearing: Make sure to get the correct part number for your specific Prius model.
* Grease: For the new bearing.
* Clean rags and shop towels: To keep things clean.
General Steps (This is a simplified overview. Consult your repair manual for detailed instructions!):
1. Safety First: Park on a level surface, engage the parking brake, and chock the front wheels. Use jack stands to securely support the vehicle after lifting it with the jack.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Disconnect Brake Caliper and Rotor: Carefully remove the brake caliper (support it with a bungee cord or wire to prevent it from hanging by the brake line), then remove the brake rotor.
4. Disconnect Suspension Components: This is where the complexity arises. You'll likely need to disconnect the lower control arm, possibly the sway bar link, and potentially other suspension components depending on the design of your specific Prius model. Consult your repair manual for the exact procedure. You'll likely need the ball joint separator here.
5. Remove the Hub Assembly: Once the suspension components are disconnected, the hub assembly (containing the wheel bearing) can usually be removed. This may involve removing more bolts.
6. Press Out the Old Bearing: Use a wheel bearing press to carefully press the old bearing out of the hub assembly.
7. Press In the New Bearing: Using the wheel bearing press, carefully press the new bearing into the hub assembly. Ensure it's seated correctly and evenly.
8. Reassemble Everything: Carefully reassemble all the components in reverse order of disassembly, paying close attention to the proper torque specifications for all bolts.
9. Torque Specifications: Refer to your repair manual for the correct torque specifications for all bolts and nuts. Using a torque wrench is crucial to avoid damaging components.
10. Test Drive: After reassembly, test drive the vehicle carefully to ensure the repair was successful. Listen for any unusual noises from the rear wheel.
Again, this is a simplified overview. Using a repair manual specific to your 2001 Prius is absolutely crucial for a successful and safe repair. Incorrect procedures can lead to serious damage to your vehicle and potential injury. If you're not comfortable with this repair, take it to a professional mechanic.
