Here's a general outline of the process. This is NOT a complete guide and should only be used in conjunction with a repair manual. Failure to follow proper procedures could damage your car or cause injury.
Tools You'll Likely Need:
* Repair Manual: Absolutely essential.
* Jack and Jack Stands: Safety first! Never work under a car supported only by a jack.
* Wheel Chocks: For added safety.
* Lug Wrench: To remove the wheel.
* Wheel Alignment Tool (Optional but Recommended): For proper alignment after the job.
* Socket Set and Wrenches: Various sizes will be needed.
* Ball Joint Separator: To separate the ball joint from the control arm.
* Pickle Fork or Ball Joint Separator: To separate the ball joint from the steering knuckle.
* Hammer and Punch: Might be needed for stubborn components.
* Penetrating Oil (PB Blaster): To help loosen rusted bolts.
* Bearing Packing Tool (Optional): For repacking the bearings (if you're using a repackable bearing).
* New Wheel Bearings: Get the correct ones for your vehicle!
* Torque Wrench: Essential for tightening bolts to the correct specification.
* C-Clamp: May be needed depending on the type of bearing and removal tool used.
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 the Vehicle: Safely lift the vehicle using a jack and secure it on jack stands.
3. Remove the Wheel: Remove the lug nuts and the wheel.
4. Disconnect Brake Caliper: Remove the brake caliper and support it with a wire or bungee cord to prevent damage to the brake line.
5. Disconnect ABS Sensor (if applicable): Carefully disconnect the ABS sensor wire.
6. Remove the Rotor: Remove the brake rotor.
7. Disconnect Tie Rod End: Separate the tie rod end from the steering knuckle. You'll likely need a tie rod separator tool.
8. Separate Ball Joint: Separate the ball joint from the control arm. This usually requires a ball joint separator.
9. Remove the Axle Nut: This is often a large nut that requires significant torque to loosen.
10. Remove the Knuckle: Remove the steering knuckle from the hub assembly. This step will vary considerably depending on the specific Grand Am model. The repair manual will be critical here.
11. Remove the Old Bearing: This is the most challenging part. The method varies depending on whether it is a sealed unit or a serviceable one. You might need a bearing puller.
12. Install the New Bearing: Carefully install the new bearing. Again, the method depends on the type of bearing and the design of your vehicle's hub.
13. Reassemble: Carefully reassemble everything in the reverse order of disassembly. Pay close attention to the torque specifications in your repair manual.
14. Torque Specifications: Use a torque wrench to tighten all bolts and nuts to the correct specifications.
15. Lower the Vehicle: Carefully lower the vehicle and remove the jack stands.
16. Wheel Alignment: Get a wheel alignment done afterward to ensure proper handling and tire wear.
Important Considerations:
* Sealed vs. Repackable Bearings: Some Grand Ams use sealed bearings, which are replaced as a unit. Others might use repackable bearings, requiring grease packing. Your repair manual will tell you which type you have.
* Rust and Corrosion: Older vehicles often have rusted or corroded fasteners. Use penetrating oil liberally and allow it time to work.
* Torque Specifications: Following the correct torque specifications is critical for safety and proper operation.
Disclaimer: This is a simplified overview. You must consult a repair manual specific to your 1997 Pontiac Grand Am before attempting this repair. Improper repair can lead to serious injury or damage to your vehicle. If you're not comfortable performing this repair, take your car to a qualified mechanic.
