Have you snugged up manifold bolts yet ?

 

I haven't messed with the manifold bolts, as I dont have a torque wrench.
I tried figuring out where that hose goes, but once it goes into that tube it's lost. I would have to tear the whole thing apart to find it.

 

No torque wrench needed just put a regular wrench and snug them up ,don't go heman on them...youll no if there looose

 

This musta slipped by Cruiser54...https://www.cherokeeforum.com/f2/thi...e-help-160825/

 

Above your brake booster is there not a Emission sticker ? NOTE BIG RED ARROW...

 

There is. I've checked all those lines.

 

That lines not on that picture ?

 

No I didn't see it. I'll check out the manifold bolts when it stops raining.

 

Ive asked couple of times do your ac vents operate properly as in air flow ?

 

My ac is out of commission right now, but the vents do blow air.

 

Does air flow switch from dash to defrost when driving ? Also do you have rear wiper that extra hose could be for that option ?

 

No rear wiper and the vets do change when switched.

 

That's most likely what that hose is for rears washer I bet.As for vent they don't switch them selves is what im asking especially under highway or hard acceleration correct.

 

Correct I haven't noticed that.

 

Check the manifold bolts then see if vents change from dash to defrost when driving this could indicate vacuum issue . In ball or line to it.