What is the whirring noise in your 2003 dodge caravan when it is cold and you turn the wheel?

usually noise when the vehicle is cold and you turn the wheels is cause y the power steering pump belt. the belt may be on its way out and may need to be replaced, or its not tensioned properly and it slips. when the belt/vehicle warms up the belt expands picking up the extra slack therefore ending the noise. Check the belt if you see anything unusual(cracks,glazing,wet,oil) replace it.When re-installing it do not use any lub or put anything on the belt. just install it as is. A noise when you turn your wheels may also be cause by air in the power steering system but you would hear that noise at any temp.