Howl at highway speeds while on throttle

Hello,

Lately I have heard a howl from the right side of my truck while going around 65mph on the highway. I can make it start and stop every time. I notice it while I’m slightly on the throttle and soon as I’m off the peddle it stops. I can recreate it every time
At that speed.

Mira a howl or a whine sound that can only Be heard with no music on and no one talking.

I have read it can possibly be a bad bearing or possibly a rear diff howl.

many suggestions on diagnosing this sound?

 

Yea, it could literally be any number of things. Have a mechanic test drive with you would be my suggestion.
You make it howl and his experience can tell you what it probably is. Correct it before you make it worse.

 

Mine did that and it was a bad front wheel bearing

 

If you zigzag and the noise goes away and comes back then most definitely a wheel bearing. I dont recommend that you do this on the highway. If you only hear it when you give it throttle in a straight line then could be your rear diff.

 

As I going around corners I can make the sound happen, I will try the zig zag and report back. Thanks for suggestions.

 

Sounds like wheel bearing. Mine did the same thing. The zigzag method confirms wheel bearing failure. As you load/unload each side, and the sound comes/goes.

Typically, if you do one wheel bearing, just do both since the other wheel bearing will be going out shortly. I also did the brakes at the same time since everything was apart anyways.