On Thu, 06 Dec 2007 16:23:15 -0800, Dottie wrote:

My house has two outside faucets. One on the north side, where the
water line comes in to the house, is fine. The other one is on the
south side....right under the bathroom window. All the faucets in that
bathroom are fine, no noise. The outside faucet makes a jarring racket
that can be heard all over the house. Why? Is there anything I can do?
I know that air in the line can cause it - it's a vibration type
noise....but why just that faucet?

Could it be a loose pipe near the faucet and the sound is being
transmitted via the entire piping system?

I would start wiggling pipes in the basement to see if any are loose. It
could be as simple as a missing pipe strap.