Here's a general overview of the process. This is NOT a comprehensive guide, and specific steps may vary slightly depending on the year and model of your Alero. Always consult a repair manual specific to your vehicle's year and model for precise instructions and torque specifications.
Tools You'll Likely Need:
* Jack and jack stands: Crucial 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 set and wrenches: Various sizes will be needed.
* Ball joint separator: To separate the ball joint from the steering knuckle.
* Tie rod separator: (May be needed, depending on the design)
* Hammer and punch: For various tasks.
* Penetrating oil: To help loosen rusted bolts.
* Wheel bearing press or suitable alternatives: Essential for safely pressing the old bearing out and the new one in. Improperly installing a bearing can severely damage it.
* Torque wrench: Absolutely necessary for tightening bolts to the correct specification. Incorrect torque can damage components.
* New wheel bearings: Make sure you get the correct part number for your Alero's year and model.
* Grease: High-quality wheel bearing grease.
* Safety glasses and gloves: Protect yourself.
General Steps (Consult your repair manual for specifics):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks.
2. Raise and Secure: Safely jack up the car and place it on jack stands.
3. Remove the Wheel: Remove the lug nuts and take off the wheel.
4. Disconnect Brake Caliper: Remove the brake caliper and hang it out of the way to prevent damage to the brake line. You may need to compress the caliper piston.
5. Remove Rotor (if applicable): Some Aleros may require rotor removal before accessing the bearing.
6. Disconnect Tie Rod End (Possibly): Depending on the year and design, you might need to separate the tie rod end from the steering knuckle. Use a tie rod separator.
7. Separate Ball Joint: Use a ball joint separator to separate the ball joint from the steering knuckle.
8. Remove the Hub Assembly: Once the ball joint and tie rod are disconnected, the hub assembly (containing the bearing) can often be removed. This may involve removing some bolts or nuts.
9. Press Out the Old Bearing: This requires a wheel bearing press. Improper removal can damage the hub.
10. Press In the New Bearing: Use the bearing press to carefully install the new bearing. Ensure it's seated correctly.
11. Grease the New Bearing: Pack the new bearing with fresh, high-quality wheel bearing grease.
12. Reassembly: Reverse the disassembly steps, carefully aligning components and tightening bolts to the correct torque specifications (as per your repair manual).
13. Lower the Vehicle: Lower the car slowly and carefully.
14. Torque Check: Double-check all bolts and torque them again.
15. Test Drive: After reassembly, take a short test drive to listen for any unusual noises or vibrations.
Important Considerations:
* Repair Manual: A factory service manual for your specific Alero year and model is invaluable. It will provide detailed diagrams and instructions.
* Press: A wheel bearing press is strongly recommended. Improvising can easily damage the hub and new bearing.
* Torque Specifications: Using the correct torque values is crucial for the safety and longevity of your vehicle.
* Professional Help: If you're not comfortable with this type of repair, it's best to take your Alero to a qualified mechanic. Improperly installed wheel bearings can lead to serious accidents.
This information is for guidance only. Always consult your vehicle's repair manual and seek professional help if needed. Your safety is paramount.
