79 300sd vacuum line question
My question in concerning a vacuum line that I cannot figure where it should connect. There is a Y that comes out of the top of the VCV. One connection couples with another Y. The other is a black line that goes left behind the valve cover and is just hanging loose under the engine compartment.
The transmission is also shifting rough and I was hoping this was related to this disconnected vacuum line.
I have looked at many diagrams and cannot figure it out. FYI this is not the vent line that goes under the dash. I am fairly certain this line should connect somewhere.
If anyone could help I would really appreciate it with any pictures of where this should connect. Thank you.
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