Humming or droning noise while driving
A hum that rises with road speed (not engine speed) usually comes from a wheel bearing or the tires.
AreaNoises
UrgencyModerate
Can I keep driving? Drivable with care. Diagnose soon: performance, economy or other components can be affected.
Common causes
Worn wheel bearing
Often louder when turning one way, as weight shifts onto the bad bearing.
Uneven tire wear (cupping)
Feathered or cupped tires drone at speed.
Aggressive tire tread
Some all-terrain tires are simply noisy.
Differential wear
A whine that changes between acceleration and coasting.
What to check
- Check whether the noise changes when weaving gently left and right.
- Lift the car and check each wheel for play and roughness.
- Inspect tire tread for cupping.
Repair guides
Other noises problems
General guidance only. A qualified technician can confirm the cause; brakes, steering and fuel leaks should be checked professionally if in doubt.