2008 lincoln navigator vacuum hub driver side clicking noise

[Nissan Sentra]

Hey guys
My 08 is making a clicking noise when driving I assume it's my hubs and something to do with vacuum. Does anyone have a vacuum hose diagram or know how to find it for 08? Looks like a hose that runs from one side to the other was disconnected and I'm not sure if it was for the air suspension or for the hubs. The air suspense has been removed.

 

[07navi]

Hey guys
My 08 is making a clicking noise when driving I assume it's my hubs and something to do with vacuum. Does anyone have a vacuum hose diagram or know how to find it for 08? Looks like a hose that runs from one side to the other was disconnected and I'm not sure if it was for the air suspension or for the hubs. The air suspense has been removed.

It's pretty simple and all that info is on u tube.

 

[Nissan Sentra]

It's pretty simple and all that info is on u tube.

There is no vacuum diagram on youtube.

 

[07navi]

 

[07mustangman]

My 2011 Limited had same problem. Turn 4wd switch to AWD or 4H and see if noise stops when driving. There is a solenoid and check valve that connects to the hose in the above post.