I think I found my vacuum leak

[86scotty]

2005 EB Expy. Can someone look right by their master cylinder and tell me where this goes? I can't find a broken line anywhere that it would've connected to. It's clipped there with an OEM clip so it should be the same on other Expeditions.



Thanks




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[stamp11127]

If you have a 4x4 that may be the vent line for the front diff.

 

[86scotty]

Hmmm. Interesting. Well, I do have a vacuum leak (dash vents come and go with acceleration and coasting) and I thought I'd found it. I can't crank the tru ck for a couple of days to see if there's a vacuum on that line. Anyone else with a 4x4 got this same setup?

Thanks

 

[Skauber]

I have a '05 Expedition, and I have a similar line terminating like that. It's a vent line for the 4x4 hubs. You should see two lines going down to each hub, one line should pull vacuum, the other should vent to atmosphere and just terminates like that.

 

[86scotty]

Perfect, thanks to you both. I've got a few projects going under the hood right now but plan to go through all the vacuum lines. Some are pretty brittle so I'm sure I won't have much trouble finding my problem.