Weird noise wine / Howling 2011 2500 hd 6.0

[Preston1]

I have a 2011 chevy 2500hd 6.0 just got new tires and now it sounds like the truck is whining and howling when going down the road whine sound when accelerating and like a deep howling during deceleration. 

It's not a tire howl. I'm going to try and post a video it sounds like it's right below the cab.

Edit: 

 

[Supreme Pizza]

Hmm. Strange.

 

I would try to isolate it by eliminating the symptoms. Under what condition does the sound go away?

 

Try driving it in 4x4 mode.

Try shifting to neutral

Try shutting the engine off and coasting

Try higher RPM ranges, by selecting a lower gear

Try compression braking

Try it in 4x4 low range

 

Might want to shake down the whole rig. CV axles, drive shafts, front hubs, rear outer axle bearings, engine fan clutch, etc.

 

You could also check the level and condition of your diffs, T-case, etc.

 

If you put the rear axle on jack stands, does it still make the sound?

 

If you put all 4 corners on jack stands, and run it in 4x4, does it still make the sound?

 

When your under the rig with a mechanics stethoscope listening for stuff, the sound you really don't want to hear is the automatic locks activating. So if your rig automatically locks the doors when you reach a certain speed, you would want to roll the windows down or turn that function off before you start the engine - if your up on jack stands.

Edited December 16, 2021 by Supreme Pizza

[Carlosjames777]

Anything? I have the same issue now what to see if you found out what it was