Okay, I should have seen that when I first replied. Sorry. Anyway, it could be the result of a brake issue or a wheel bearing. Does the sound change when you apply the brakes? What happens when you turn left? Also, does the humming change with vehicle speed?
Honestly, it sounds like a wheel bearing, but I will wait for your reply.
Joe
Monday, December 3rd, 2018 AT 8:37 PM