I have been having a strange on again off again leak coming from the bottom of my water pump where a coolant line runs into it. Odd thing is sometimes it leaks and sometimes not. I attached a pic of where it appears to be leaking from. Anyone have any ideas of what is happening?? Thanks a ton!!!!!

 

Pretty sure that's your thermostat housing. Maybe a bad or missing outer t-stat o-ring?

 

Looks to be what that is! Gonna throw a new thermostat and O ring in while I'm down there and see if this solves the issue.