Are our Contour IACs the same as other Ford IACs? On my dad's Explorer, the IAC valve has a black plastic cover on the side that can be taken off. When you take it off, you can stick your hand over it, and cause this horribly loud, and very strange sound to come out from it.
It does somehwat sound like a moose call (More like a foghorn though). I'll see if I can find the video when one of the members of Explorer 4X4 did this.