Wheel Bearing for a 2002 Ford Explorer
What is a Wheel Bearing?
A wheel bearing allows the wheels to rotate smoothly while supporting the vehicle’s weight. It is a set of steel balls or rollers inside a metal ring, located inside the wheel hub assembly. The 2002 Ford Explorer uses sealed wheel bearings, meaning they cannot be serviced and must be replaced when they fail.
Where is the Wheel Bearing Located?
The wheel bearings are found inside the wheel hub assembly and connect the wheel to the axle. The 2002 Ford Explorer has wheel bearings in both the front and rear wheels:
- Front Wheel Bearings – Integrated into the wheel hub assembly, requiring a full hub replacement.
- Rear Wheel Bearings – Pressed into the rear knuckle, requiring special tools for removal.
Signs of a Failing Wheel Bearing
- Humming or grinding noise while driving, especially when turning.
- Vibrations in the steering wheel or vehicle body.
- Uneven tire wear due to wheel wobbling.
- Loose or shaky wheel movement when jacked up.
- ABS warning light (if the bearing has a built-in sensor).
How to Replace a Wheel Bearing on a 2002 Ford Explorer
Tools Needed
- Jack and jack stands
- Lug wrench
- Socket set (including 32mm axle nut socket for 4WD models)
- Torque wrench
- Bearing press tool (for rear wheel bearings)
- Hammer and pry bar (for stuck hub assemblies)
Front Wheel Bearing Replacement (4WD & 2WD)
- Lift the vehicle and remove the wheel.
- Remove the brake caliper and rotor to access the hub assembly.
- Disconnect the ABS sensor (if equipped).
- Remove the axle nut (4WD models only).
- Unbolt and remove the wheel hub assembly (prying may be needed).
- Install the new hub assembly, ensuring proper fitment.
- Reassemble everything and torque to factory specs.
Rear Wheel Bearing Replacement
- Lift the vehicle and remove the wheel.
- Remove the brake caliper and rotor.
- Disconnect the parking brake and ABS sensor (if applicable).
- Use a press tool to remove the old bearing from the knuckle.
- Press the new bearing into place.
- Reassemble all components and torque bolts correctly.
Cost of Replacing a Wheel Bearing
- Parts cost:
- Front wheel hub assembly: $100–$250 per wheel
- Rear wheel bearing: $50–$150 per bearing
- Labor cost:
- Front: $150–$300 per side
- Rear: $200–$400 per side (requires pressing the bearing in)
Final Thoughts
The 2002 Ford Explorer’s wheel bearings are built into the hub assembly, meaning front bearings require a complete hub replacement, while the rear bearings need pressing into place. If you experience humming noises, vibrations, or steering issues, it may be time to replace them.
FAQs
1. How long do wheel bearings last on a 2002 Ford Explorer?
They typically last 100,000–150,000 miles, but harsh driving conditions can shorten lifespan.
2. Can I drive with a bad wheel bearing?
No, a failing wheel bearing can lead to wheel detachment or brake failure.
3. Do I need an alignment after replacing a wheel bearing?
Not always, but an alignment is recommended if replacing rear wheel bearings.
4. Can I replace just one wheel bearing?
Yes, but if one fails, the other on the same axle may fail soon after.
5. How do I know if my front or rear wheel bearing is bad?
- Front bearing noise gets louder when turning.
- Rear bearing noise remains constant regardless of steering input.
