wheel bearing
it can be your alignment, check your tire pressure, make sure the tires arent in bad condition, or out of round.
Sounds like your belt may be worn out.
A humming bird
mine use to do the same thing, it was the water pump backing up.
the humming sound is causing the heat? Your fan clutch has failed, or the radiator/condensor have dirt blocking airflow.
The word is droning. It means to make a continuous low humming sound.
purring?
1. a low humming sound (noun) 2. a male bee (noun)
Possibly worn wheel bearings can create a humming or groaning sound.
Its the sound telling you need new taps
I have a whirring sound in my ears Can you tell me what is causing it?
To make a humming or hissing sound, like an arrow or ball flying through the air; to fly or move swiftly with a sharp hissing or whistling sound., A hissing and humming sound.