We have a suzuki sidekick and it makes this horrible noise. Its like a grinding, rattling noise coming from the passengers side, its so loud. We tried to figure out if there was a reason but we've yet to find any. We never know when its going to happen but it used to be when we'd go up a hill and if we were to put it into 4wheel/drive it would stop but that does not work any more. It used to happen just once now it happens like 6 or 7 times.. The noise goes away when we come to a stop. But as you get up to speed again the noise starts up again.

Does anyone know what this could be from? Or know what the problem is. And possibly how to fix it.

Thanks!

wheel bearing
cv joint
brake caliper sticking

Sounds like right wheel bearings- probably will cost you between $200-300 to repair by an honest mechanic. Sounds like a lot? Consider that four wheel drives tend to cost more for parts than two-wheel drives and labor is generally more intensive.