2.5 Valve Cover Plug/Vacuum Line

[jeepdude89]

What is supposed to go at the back of my valve cover were that bolt is put into? I think a vacuum line is supposed to go there. 89 2.5 5spd

 

[1974CJ5]

that is where an elbow used to be for the ccv system some one block it off (probably because they were getting oil in the breather box. I believe the rear one on my truck went to the breather box originally with a plastic tubing assembly. I don't remember 100% which ccv hose went where. I think the rear one goes to the breather and the front one goes to the throttle body.

 

I'm sure some of the MJ guru's on here could tell you exactly. I was just looking at that vacuum diagram the other day in a haynes manual, but sorry to say can't remember.

[fiatslug87]

[jeepdude89]

Thank You! That diagram will help me out a bunch!