I got the same thing happening to my CSVT. This only happens when its cold though and was wondering the same thing. I usually add a very small amount of water and coolant but don't know if this is some early signs of problems to come.

_//>SVTLAY<\\_
RED 98 SVT Contour
Mods: K&N Filter, custom heatshield, 9MM Ford Racing Wires, resonator removed, BAT Handling Kit, silver interior touchup, Pioneer Stereo, CUZO headlights, clear turning signals, audi side markers, LEDs in door handles, Indigo Gauges, SVT stickers(Adds horsepower=)),painted grills, sail panel, and calipers. More to come.....