Can someone tell me what this line goes to?

[Highway_livin]

I found this line hanging down under the truck.

2013 1500 5.7 4x4
One end goes into the rear axle just left of the diff. The other end... That's the mystery.

I greatly appreciate any help I can get. I don't imagine it's a brake line, but at this point, it wouldn't surprise me.

 

[pacofortacos]

It's a vent tube and goes up high and attaches on the bed or frame up there.

 

[Highway_livin]

Ok so just a breather line basically. Thank you. I really appreciate the help, I've just never seen one that long. On my tractor trailer, it's only about 6 inches

 

[GTyankee]

That line should have a 1 way valve in it at the axle tube
The hose is there for those instances when you need to ford things like a stream of water or ponding water covering a road

 

[OC455]

Differential breather tube, the end that is down should have a place for it in the engine bay

 

[pacofortacos]

Differential breather tube, the end that is down should have a place for it in the engine bay

It's the rear diff on this one, but if it was the front diff then the clip is up in the engine bay.

 

[OC455]

It's the rear diff on this one, but if it was the front diff then the clip is up in the engine bay.

I got ya....I was looking at the pics on my phone.....little smaller on that screen vs. the computer screen...LOL

 

[gofishn]

It's a vent tube and goes up high and attaches on the bed or frame up there.

Ok so just a breather line basically. Thank you. I really appreciate the help, I've just never seen one that long. On my tractor trailer, it's only about 6 inches

That line should have a 1 way valve in it at the axle tube
The hose is there for those instances when you need to ford things like a stream of water or ponding water covering a road

Differential breather tube, the end that is down should have a place for it in the engine bay

It's the rear diff on this one, but if it was the front diff then the clip is up in the engine bay.

I got ya....I was looking at the pics on my phone.....little smaller on that screen vs. the computer screen...LOL

You guys seriously impress me.
I mean it.


I love this Forum.




BTW, I actually knew this one.
No one more surprised, than me.

 

[GTyankee]

One day you may be looking around the intake manifold area & see a hose that is connected to nothing, it is a vent line for the Transmission

I have not looked for the front differential vent tube