I recently changed the oil and the oil filter on the 85 xj6 and saw this "pipe?" just hanging there. It looks like some sort of a hose should go there, but I did not see anything loose under the car.

I took those pictures from the passenger side in the general area around the oil filter.

Can someone please tell me what this is and is this a problem?

The car runs great!

 

Probably the air conditioning drain pipe

 

Yup, AC drains. Don't plug em up unless you like damp floorboards

 

if its a metal pipe, its probably the vent for the transmission, nothing goes on it!