i have a coolent leak

[bears4x4]

i have a coolent leak coming from a tube-drain pipe??? next to my water pump, what would cause this, i have a huge puddle under my truck, everything else seems to be runnign fine

http://i214.photobucket.com/albums/cc130/bears4x4/truckleak.jpg

 

[Double-S-Diesel]

if its commin out the tube its diesel, new diesel is green, your fuel drain o rings are leaking.