ID this engine item

[cperez]

While changing the oil today I noticed this capped-off hose loosely tucked under the driver side bump stop for the hood. Is this some kind of bleeder hose for some component tucked away in the engine or is it supposed to be connected to something like the coolant expansion tank? Note: I had my water pump and crossover pipes replaced back in December. I’m planning to ask my indy mechanic but wanted to ask here, too. Thanks. (2013 5.0L)

 

[jwest]

looks like a breather doo-dad on the end there. did you follow it down?

 

[cperez]

looks like a breather doo-dad on the end there. did you follow it down?

Nope, I don't claim vast engine knowledge and was hoping that the mere sight and location of it would be a giveaway for those more knowledgeable than me.

 

[TheWidup]

Is that the alternator vent tube? Pretty sure it is after looking at the angle/side

 

[cperez]

Is that the alternator vent tube? Pretty sure it is after looking at the angle/side

Would that be the standard location for it? It wasn't fastened or attached in any way, just kind of hooked there under the bump stop. I was concerned that it was something from the most recent service that didn't get properly replaced in its usual location.

I posted the photos in sequential order, with the first one showing its location before I pulled it free to show some identifying details...

 

[BBLR3]

Front differential vent tube? Opening is up high in the event water the diff goes underwater.

 

[TheWidup]

Agh. I meant starter earlier.

 

[avslash]

I believe that is the front diff breather.

 

[scott schmerge]

Agh. I meant starter earlier.

View attachment 9035

That starter breather is on the back of the engine. Looks to me that is the front diff breather

 

[cperez]

Thanks everyone for the ideas on what this is. The consensus is that it is a breather tube, either for the front diff or possibly the starter. Either way, I'm going to leave it where I found it and not be too concerned.