Vibration lower left dash

[swimmerdude1127]

Before I made jokes about turning the radio up, but not sure I can ignore it much longer. At any speed above 30mph, I get this high frequency hum coming from what sounds like inside the cab by my lower left foot. For the life of me I cannot figure out where it's coming from.

Some observations:
The frequency (pitch) of the noise does not increase with speed or acceleration.
No change to the sound with the vehicle in neutral and engine idling at speeds over 30.
After getting tires rotated/balanced today it helped some, but the sound is still present.
It seems loudest and most prevalent between 30-40mph; more sporadic between 60-75mph.
If I were to put a label on the materials rubbing, to me, it sounds like two metal objects. I can't really hear any clicks or rattles (no individual sounds), just a steady hum. Kind of like how loud tires sound... But different.


Case of beer to whoever nails it. And to top off the thread, for your entertainment pleasure, Marky Mark with "Good Vibrations" seems fitting.

Marky Mark And The Funky Bunch - Good Vibrations - YouTube

 

[Antman]

Before I made jokes about turning the radio up, but not sure I can ignore it much longer. At any speed above 30mph, I get this high frequency hum coming from what sounds like inside the cab by my lower left foot. For the life of me I cannot figure out where it's coming from.

Some observations:
The frequency (pitch) of the noise does not increase with speed or acceleration.
No change to the sound with the vehicle in neutral and engine idling at speeds over 30.
After getting tires rotated/balanced today it helped some, but the sound is still present.
It seems loudest and most prevalent between 30-40mph; more sporadic between 60-75mph.
If I were to put a label on the materials rubbing, to me, it sounds like two metal objects. I can't really hear any clicks or rattles (no individual sounds), just a steady hum. Kind of like how loud tires sound... But different.


Case of beer to whoever nails it. And to top off the thread, for your entertainment pleasure, Marky Mark with "Good Vibrations" seems fitting.

Marky Mark And The Funky Bunch - Good Vibrations - YouTube

This will sound weird but...

Do you have:

A: CB Antenna?

B: Roof lights?

 

[Jeremy556]

Check the flaps in the wheel well, covering the engine compartment, have all their clips in place and are tight. That one drove me nuts for a week.

 

[swimmerdude1127]

This will sound weird but...

Do you have:

A: CB Antenna?

B: Roof lights?

No CB antenna but I'm pretty sure it's no secret that I've got some roof lights

It definitely does not sound like a wind noise. When I first put the gobi on I didn't use the fairing just to see how it sounded. Boy did that thing howl sometimes. But it's more like a whir/hum than a howl. It also doesn't sound like flapping.