4.0 vacuum line diagram NEEDED

hey i got a 4.0 ranger and one of the vacuum lines isnt hooked up and i have no clue where it is suppose to be can someone get me a diagram?

You might want to tell the year and where the hose is attached on the other end, some one might be able to tell you where the hose goes without a diagram

Its a 1993 ranger I'm not sure where its connected to but the truck seems to run fine with out it connected on both ends I would just like to know where it goes I know its not for the air intake I have that line connected.

I need a vacuum diagram for 2002 Ford Ranger 3.0, 6 cylinder, 4X4.