Vacuum diagrams/locations?
 

I have a line coming off of the pressure regulator at the intake. The part of the line that is left is broken, covered in an oild/dirty gunk and pops up right where the air cleaner plugs into the Valve Cover. I have no clue where this goes. any help would be great. Thanks

1990 300E 2.6

That vacuum line plugs into the rubber hose that goes from the top of the aircleaner to the valve cover.

http://img.eautopartscatalog.com/hir...300&height=300

HMMMMM..... My hose is missing that part, Looks like a couple new items will be ordered. Thanks

That line isn't critical for engine function, it's there to suck in raw fuel when the fuel pressure regulator diaphragm goes bad.