I pulled the HVAC vacuum line loose when I changed out the valve cover gaskets. It is still connected to the line running across the top of the firewall, I just cannot for the life of me find where it connects at or through the firewall. I am hoping there is a fitting I can reconnected it to.

If anyone can give me a reference to where I should be looking for it, it would be appreciated.

99 5.9 SLT Durango 4x4