Am a first time Volvo owner, having gotten a used '04 XC90 (T5) back in May

DW uses it on a daily basis, but I love driving it when I can.

Recently noticed a hum/roar above 30-35. Gets louder with rolling speed, but it quiets momentarily when the vehicle weight is shifted sharply to the left....even slight steering twists to the left disappears the sound for a fraction of a second.

Two questions:
1) Is that enough information to make a determination that its a bearing/hub, and then to narrow it down to one particular wheel?

2) how to tell the difference between hub noise and diff noise? does noise silencing with sharp left turn indicate that its NOT a diff?

I want to make sure first its a hub issue, and then to go ahead and replace the correct hub to take care of this. Need to drive daughter to college end of Aug and would rather do it in a noise-free (safe?) vehicle.

Thanks much,

 

that sounds like a wheel bearing. my wife's 08 is doing the same thing (noise when wheels pointed straight or right, goes away while wheels pointed even slightly left) and I suspect that's what it is. I'm going to let dealer deal with it because have extended warranty.