Symptoms
- Growling or humming noise that gets louder with speed
- Noise changes pitch when turning left or right
- Steering wheel vibration in more advanced cases
- Noise seems to come from one specific wheel
Likely causes
- CommonWorn wheel bearingBearings wear out over time and develop play and noise, often worse when turning away from the affected side.
- PossibleUneven or cupped tire wearTire noise can sound similar but usually doesn't change much when turning.
What to do
- Note whether the noise changes pitch or volume when turning left versus right at a safe, steady speed.
- Have a helper listen from outside near each wheel while driving slowly in a safe, empty area, or use a mechanic's stethoscope if available.
- Check for play by jacking up the wheel and rocking it top and bottom by hand, feeling for looseness.
- Rotate the tires and see if the noise moves with the tire or stays with the wheel position, which helps distinguish tire noise from bearing noise.
- Have a mechanic confirm with a road test and physical inspection before replacing the bearing.
Tools and parts
Wheel bearing or hub assemblySearch: “wheel bearing hub assembly for [your car model]”
When to call a pro
Wheel bearing replacement is a job most people have a mechanic do, since it often requires a press and specialized tools.
Safety
Use caution
A badly worn wheel bearing can eventually fail and affect wheel stability; don't ignore a growing or worsening noise.