Possibly a dumb question but I was under my truck yesterday and when I was checking out my brake lines I saw this.



Can anyone tell me what the hose it that is capped off? The two side lined go to each drum and the top one goes all the way to the ftkmg

 

Edit: to the front of the truck. BTW I have an 88 F150 xlt lariat with a 351 Windsor.

 

It's a vent line, with a check valve on the end, so debris doesn't go in.

 

Alright then, great. So it just sits there and nothing needs to be done with it? Sorry, I'm still learning everything with it, first truck. Thanks for the help.

 

I would zip tie that line higher so it doesn't fall and water doesn't get in.

 

Yep, just sits there.