E450/350 Vents stuck on Defrost. FIX

How to restore vacuum source to vent system

[@shannondaniele7723]

Amazing this hack fixed my air-conditioning. Spoke to several mechanics. They told me it just wasn’t worth the expense to do it. I didn’t pull the old vacuum line out and snake through the new one a row did it through the inner fender right before the passenger side floorboard there’s a little plastic knock out.. this took an hour of my time thank you thank you

[@jnlafferty2043]

Glad it helped.

[@twylabowman3489]

I did the exact same thing but now when I put a load on it, it goes back to the defrost and floorboards. Once I left off the throttle, I blows through the vents again just fine. Ugh! Any ideas???

[@colgand7821]

This helped thanks for making it short and easy to understand

[@marcusmadrid4016]

I did exactly what you said to do it works great the only problem I’m having is that it doesn’t seem like it’s getting as cold as it used to I even had it charged and still the same

[@MissusRyan]

Awesome pal really helped thanks for making this

[@Azariah287]

Thanks for the video! Going to give that a shot. Same issue with my E350

[@dandesouto6076]

Yes I’ve been having the same problem for a long time and my mechanic is sad the problem is under the dash the way you did works great and I don’t need to remove the Complete Dash

[@1234jeffjeff]

Thank you for sharing fantastic you are a man

[@scantcity8426]

Very cool, thanks!

[@johnnyb5247]

Thank you sir!

[@jnlafferty2043]

Your welcome

[@tipzy7730]

did the same, only im using a universal vacuum storage container, not a ford and cant get mix to work still. thinking this storage container is to small or cuz of idle. but got it working again!

[@notajp]

I keep wondering why no one has tried simply removing the inner fender panel to get to the original reservoir and check valve? I think I will try it on our E450.

[@CSuiteLeague]

I was thinking the same thing. Did you try it yet and if so how did it work?

[@eatfreebefree2780]

@@CSuiteLeague considering I'm having this same issue, I'll be checking mine to see,

[@eatfreebefree2780]

@Lacey Boy mine I had to do completely new vac lines , boosters, etc all the way

[@detdan]

Make a video 📹 🤪