I recently poured some cataclean into the gas tank of my 2011 f150. While I was pouring it in I noticed some of it ran out of a hose coming off the filler area. The hose is by the rear driver side tire. Why did it do this and is this hose suppose to be connected to anything because its not. Please Help...

 

It is as it should be. Fueling overfill.

 

I figured it was. Just bought this truck so I was just double checking. ....thanks for the reply buddy....