2.3L ('83-'97) 88 ranger stuck on defrost

[Slowestranger88]

I’m trying to get my 88 2.3 stick shift blowin cold and threw the vents but I can’t find anything anywhere on where the lines would be or anything to try to trace it back. Any ideas. Even ideas on bypassing the actuator and just making it stuck on vents for the summer?

 

[bmtrnavsky]

I replaced the vacuum ball and replaced my vacuum lines with silicone lines and mine started acting right.