02 vacuum 4x4 issues

I have an 02 taco with a vacuum actuator for the 4x4 I found my 4x4 wasn’t working after buying the truck I found the line not connected to anything and I was curious if anyone knew what type of vacuum I have to hook the line to suction type or push type?

 

01+ are electronic, not vacuum

 

Then I have a bigger problem there’s only a vacuum line going to my front diff there’s no wires of any kind going to it.

 

Your actuator will be located on the passenger side cv. The cv axle go into it.

The line/hose you're referring to is the vent

 

Anyone know where that vent line goes too? And how important is it what would happen if it was clogged

 

if its clogged it could make the seals leak...it should go up in the engine bay with a vent cap

 

Awesome thank you I'll have to trace the line and check it out mine was disconnected and caused my actuator to fail