Need info on vacuum hose 2000 montana

[pontiacmontana62]

I need help finding out if the vacuum port on the intake that is at the back left of the intake should be capped off or if a hose should be connected to it. I rebuilt the top of the engine from the heads up and either lost the rubber cap or cannot find the hose that goes on there. The GM manual says it is for Accessories. The haynes manual has no picture of it. Any help greatly appreciated.

 

[pontiacmontana62]

It is number 10 in the picture. Please see if yours has a rubber cap or if it has a hose heading somewhere. You should only have to lift the hood and should be able to see it without getting dirty. Thanks!!!