Here's a general outline. Specific steps and torque specifications will vary depending on your exact Montero model (there were variations in the 2001 model year). Always refer to a factory service manual specific to your vehicle's year and model. A Haynes or Chilton manual can be helpful, but the factory manual is best.
Tools You'll Likely Need:
* Jack and jack stands: Crucial for safety. Never work under a vehicle supported only by a jack.
* Wheel chocks: To prevent the vehicle from rolling.
* Lug wrench: To remove the wheel.
* Torque wrench: Essential for tightening bolts to the correct specification.
* Socket set and wrenches (metric): Various sizes will be needed.
* Ball joint separator: To separate the ball joint from the steering knuckle.
* Tie rod end separator: To separate the tie rod end from the steering knuckle (may be integrated with the ball joint separator).
* Hammer and punches: Possibly needed for stubborn components.
* Penetrating oil (PB Blaster, etc.): To help loosen rusted bolts.
* Wheel bearing press or suitable alternative: This is critical for safely pressing out the old bearing and pressing in the new one. Improper installation can easily damage the new bearing.
* New wheel bearing(s): Make sure to get the correct part number for your vehicle.
* New axle nut: Often these are one-time use and should be replaced.
* Grease: For the new bearing.
* Clean rags and shop towels: To keep things clean.
* Safety glasses and gloves: Protect yourself.
General Steps (Consult your service manual for precise details):
1. Safety First: Park on a level surface, engage the parking brake, and use wheel chocks.
2. Raise and Secure: Safely raise the vehicle using a jack and secure it on jack stands.
3. Remove Wheel: Remove the wheel and tire.
4. Disconnect Brake Caliper: Remove the caliper and hang it safely out of the way (using a bungee cord or wire). Support the caliper to prevent stress on the brake line.
5. Disconnect ABS Sensor (if applicable): Carefully disconnect the ABS sensor if equipped.
6. Disconnect Tie Rod End: Use a tie rod end separator to safely separate the tie rod end from the steering knuckle.
7. Disconnect Ball Joint: Use a ball joint separator to separate the ball joint from the steering knuckle.
8. Remove the Hub/Knuckle Assembly: This step often requires removing several bolts and may involve removing the cotter pin and castle nut from the axle shaft.
9. Remove the Old Bearing: Use a wheel bearing press to carefully press out the old wheel bearing. This is crucial; forcing it out with a hammer can damage the hub.
10. Install New Bearing: Use the wheel bearing press to carefully press in the new bearing. Ensure it's seated correctly and evenly.
11. Reassemble: Reassemble everything in the reverse order of disassembly, ensuring everything is properly aligned. Pay close attention to torque specifications for all bolts. Apply grease to the new bearing as needed.
12. Torque Specifications: Critically important: Tighten everything to the manufacturer's specified torque values. Use a torque wrench.
13. Lower Vehicle: Carefully lower the vehicle.
14. Test Drive: After reassembly, perform a test drive to check for any unusual noises or vibrations.
Important Considerations:
* ABS Sensor: Be careful with the ABS sensor; damage can result in costly repairs.
* Torque Specifications: Using the correct torque values is crucial for the safety and longevity of your wheel bearings and other components.
* Preload: The wheel bearing needs to be correctly preloaded. This is often done by tightening the axle nut to a specific torque value. Your service manual will provide details. Improper preload can lead to premature bearing failure.
Again, this is a simplified overview. You absolutely must consult a factory service manual for your specific 2001 Mitsubishi Montero Limited before attempting this repair. Improperly installed wheel bearings can result in serious injury or death. If you're not comfortable performing this repair yourself, take your vehicle to a qualified mechanic.
