I think I was either flushing my cooling system or trying to get to the EGR valve to clean it when I noticed this loose connector. That attempt was made some years ago and I took these pictures then. I am fairly certain that connector has to attach to something but I have no idea where it would be. I have not checked from underneath. I drive a 1995 Cougar with a 4.6L V8. The pictures were taken at the rear of the engine on the passenger's side. A vacuum manifold and the transmission dipstick are visible and it's all I can do just to touch it. What does this connector go to?