A noise problem

On a guess-- you ask????

Could be the trans

You didn't give any details of your thoughts
or experience using it,so you know more about
it than we do & under what conditions

Doesn't sound like a fun or cheap fix,if there is one

Rotate tires to see if noise moves.

Harmonic balancer.

As you press on the gas, does the sound get louder? If so, replace your fan clutch, very common to go out.

need a picture I think. passenger side or driver side? could be the egr tube or bypass tube. Exhaust noise?

go here

http://groups.yahoo.com/group/villagerquest/

The noise is caused from a bad or dried up bearing. You will need to replace the whole blower motor

Sounds like maybe a wheel bearing on it's way out, but should be easy for mechanic to pinpoint, and give estimate. Depending on what system, bearing required, part runs from $90-$180, and would estimate an hour, to hour and a half, to change it. If you try ( www.repairpal.com ) it will ask your zip code & info & give you a price range for your particular area.

wheel bearing about to go bad.. Notice any slight roaring noise??

check to see if loose first

You either have transfer case issues or CV joint problems giving you a warning. Get it checked by a reputable shop before it locks up on you.