Can anyone tell me where the pink vac line goes? I am trying to fix the IWE vac system and opened the hood to find the pink line broken in 4 spots. There is a pink and blue vac line off the front diff leading up to the solenoid for the 4wd but the pink just ends. all broken ugh.

Also is this the main check valve from the engine to the IWE system? I found the other one that are on posts here and yes it was bad.

Last question, there is also a 1/4 inch diameter hose coming from the front diff up the front of the engine bay that just ends. It looks like it may be a vent or something. Or maybe it is supposed to go to something. I don't know. It just ends. any ideas?

 

97's don't have IWE, they have an internal differential lock. Yes, there should be a differential vent.

 

Ok good to know about the vent.

The little blue and pink vac lines come up to about mid engine from the front diff and then connect to another connection as seen in the first picture. I'm trying to find where that pink one goes. Up top I changed out the check valve with a pink line but it hours into the dash area.