I recently changed my coolant temp sensor and everything was running going untill last night when i lost all of my coolant within a few mins! :/ Its leaking if you look at this picture the black tube that goes down into the engine connects to a black cylinder looking part and its leaking where the black tube connects to the cylinder part whats that called? and can i fix this myself?

 

That would be the thermostat. I did mine myself. There is a writeup at audidiy or on zine or something. Found the cheapest part at aboveallmotorwerks.com

 

Yeahi found out where it was leaking thanks for your help