1989 F250,5.8

First thanks for all the help. My work truck that I count on runs so much better.

There is one vacum line going from the manifold to a 3 way mount to the firewall, one of these is plugged the other goes to a vacum solenoid of some sort on the evaporator housing. I am assuming I need this to operate the vent system? If so can I assume I can just run it to the solenoid and eliminate the cracked three way?

Thank you.

Z

 

Yup. As long as the vacuum gets to where it's going, you can route it any way you want. No need for the cracked piece.