Yesterday I started noticing the sounding of almost like music playing when the truck is rolling. Reminded me of a sound of a music box. Now today just a few minutes ago as I was driving up to full speed, it sounds like something’s flapping almost like it could be a flat tire but nothing is flat and I’m not sure if it’s the trailer or the tractor. I don’t hear it unless it starts going above 60 mph.
I’m about 30 minutes away from the yard and I’m going to call in to have an inspected by the mechanic. I’m just wondering if anybody has any idea what this could be so I can explain it better to the mechanics.
Tia

