2003 GMC Yukon, left wheel makes noise when engaging four-wheel-drive

[Harrison06]

So my 2003 GMC Yukon XL left wheel makes a humming noise when I put it in four-wheel-drive auto it does not make any noise when I am in 2 Wheel Dr. only when I put it in four-wheel-drive auto or four-wheel-drive any help on this issue would be appreciated thanks

 

[Fless]

Moved your thread here from the Forum How-To's section.

 

[rockola1971]

Perform the standard wheel hub bearing check. When you go into 4WD you are loading up your front hubs.