Here's a *general* overview of the process. This is not a substitute for a proper repair manual. Variations exist depending on the specific wheel bearing design (single or double-row, etc.) used in your Elantra.
Tools You'll Likely Need:
* Jack and jack stands: Essential for safety. Never work under a vehicle supported only by a jack.
* Lug wrench: To remove the wheel.
* Wheel chocks: To prevent the vehicle from rolling.
* Socket set and wrenches: Various sizes will be needed.
* Hammer and punch: Potentially needed to remove the bearing.
* Bearing press: Highly recommended for proper bearing installation; using other methods risks damage. A vice and various sockets *can* be jury-rigged, but a press is ideal.
* Penetrating oil (like PB Blaster): To help loosen rusted or seized parts.
* Torque wrench: Crucial for tightening nuts and bolts to the manufacturer's specifications.
* New wheel bearing: Make sure you get the correct one for your vehicle.
* Grease: High-quality wheel bearing grease.
* Safety glasses and gloves: Protect yourself from injury.
General Steps (Consult your repair manual for precise details):
1. Safety First: Park on a level surface, engage the parking brake, and chock the wheels.
2. Remove the Wheel: Loosen the lug nuts slightly before jacking up the car. Jack up the car and securely support it with jack stands. Completely remove the lug nuts and take off the wheel.
3. Remove the Brake Caliper: Carefully remove the brake caliper assembly (usually involves removing a bolt or two). Tie it up securely out of the way using a bungee cord or wire to prevent stress on the brake line.
4. Remove the Rotor (or Drum): Depending on whether you have disc or drum brakes, remove the rotor or drum. This may require removing additional bolts or using a rotor puller.
5. Remove the Axle Nut: This is often a large nut secured tightly. Use penetrating oil if necessary and a strong wrench or impact wrench.
6. Remove the Hub Assembly: This step will vary significantly depending on your Elantra's design. It might involve removing cotter pins, other bolts, or using a puller.
7. Remove the Old Wheel Bearing: This is where a bearing press is highly beneficial. Improper removal can damage the bearing and hub. Your repair manual will show you how the bearing is retained in the hub.
8. Install the New Wheel Bearing: Use a bearing press to carefully press the new bearing into the hub. Ensure it's seated correctly.
9. Grease the New Bearing: Pack the new bearing liberally with high-quality wheel bearing grease.
10. Reassemble: Reassemble everything in the reverse order of disassembly, paying close attention to torque specifications from your repair manual. This includes reinstalling the hub, rotor/drum, brake caliper, wheel, and lug nuts.
11. Torque Specifications: Use a torque wrench to tighten all bolts and nuts to the correct torque values found in your repair manual. Incorrect torque can lead to premature failure or damage.
12. Test Drive: After reassembly, carefully test drive the vehicle to ensure everything is working correctly. Listen for any unusual noises.
Disclaimer: This is a simplified overview. The specific procedures may differ based on your vehicle's configuration. Always refer to a repair manual for your 1997 Hyundai Elantra before attempting this repair. If you are uncomfortable performing this repair, take your vehicle to a qualified mechanic. Improperly installed wheel bearings can be dangerous.
