vaccum plug on transfer case.

[Chevycummins]

i recently installed the posilock kit on my truck and in the process or trying to elimitate a vaccum leak problem. just curious as to what the rubber plug with the four lines plugged into on the transfer case is actually for. can i remove it and cap the lines off at the lines off at the firewall? or do they actually function something on the transfer case? i know that my 4x4 is functioning correctly with the new posilock kit just not sure if that is plug is a form of a junction block for the vaccum lines for the CAD or if it has some other function.

 

[Rob24vCTD]

Its just the vac for the CAD unit, you can plug or cap them off just don't cap the tcase vent.

 

[Chevycummins]

Ok thanks been trying to track down this vaccum leak. Trying to eliminate any extra lines to narrow down where the leak can come from.

 

[kazairl]

Just a junction block to lock in the CAD and to control the 4wd and low range lights on the dash where ever those things are located at.