[CaseyGV]

Anyone have a humming sound that varies in pitch with vehicle speed, but not engine speed? I usually can hear it start at around 25 mph up until about 50 mph. It's not at all related to engine RPM speed. I'm sure it's something with the drivetrain, but I'm not vehicle savvy enough to know for sure. I couldn't get a service appointment for several weeks, so I'm hoping it's nothing too major, as I need to drive about 1700 miles this week... What do you all think?

 

[ExcursionDiesel]

Get under the front and look at the driveshafts. There is a known defect where the assembly line missed putting a CV joint boot clamp on correctly. If you don't catch it soon enough, it'll cause wear and a sound related to wheel speed. You will observe grease leaking out of the rubber boots.

It could be a bad CV even with no leaks.