Vacuum Line Help

[VeeDubGuy]

I purchased this 2004 XLT 5.4L 4x4 a few months ago and have been working on it diligently to get it ready for towing duty this summer. I just rebuilt the transmission, recharged the A/C, replaced the windshield washer pump, replaced all three blend door actuators, and replaced the entire audio system. Next I am tackling why the cruise control isn't working and I figure it is the cutout switch on the brake pedal, but before I order parts I have a mysterious vacuum hose I am trying to figure out where it goes. It branches out of a wiring harness on the D.S. down next to the steering knuckle. It has a support on it like it should be attached to another line and reaches perfectly to the brake master cylinder, but I cant seem to find a point where it attaches anywhere. I was hoping one of you could pop your hoods and see if you could find its home on your vehicle and share a picture. Here are 2 I took over the weekend, sorry if they are of a slight potato quality.

 

[Hamfisted]

That's the vent hose for your front axle. Don't plug it. Just make sure it's secured and not flopping around.


-Mike

 

[VeeDubGuy]

Thank you, I will just zip tie it to the MC and order some parts for the cruise. THANK YOU!

 

[JesseLamba]

Thanks for posting this. I just picked a 04 Navigator, and had the same question about that hose.