air conditioner blowing thru defroster

[Samsonsworld]

My Max A/C is blowing through the vents and defroster. After a few searches, I tracked down a loose vacuum line under the hood. It's a gray line (easy to spot) that runs on the passenger side towards the block. The problem is, I couldn't figure out where it was supposed to attach???? Would anybody mind looking and letting me know??? When I plug it, the a/c seems to work right but I guess I have a hard time believing any fix can be that easy.


2006 F250 FX4 XLT Powerstroke

[Abrannan19]

vacuum leak, how is your ESOF working?

[Samsonsworld]

May be a stupid question but what's an ESOF?

Just to clarify, the vent and non-recirculating a/c blow normal through the dash vents. It's just the max a/c that is causing problems. The vacuum hose I found was completely off and that's why I'm having trouble figuring out where is was supposed to attach. Any help is appreciated.

[Samsonsworld]

OK, found another guy with a Powerstroke that let me look under the hood. It hooks up to some thingy right above the oil filler cap. A/C is working.

[Snake]

ESOF -- Electronic Shift On the Fly, aka 4x4. Are you able to shift into 4wd and get power to the front wheels? I have a solenoid out and no 4x4 currently. My symptoms mirror yours only when I shift into 4x4.

[Samsonsworld]

I think what happened was they probably bumped it last time I got an oil change and I just never noticed because of the cool weather. I have used the 4wd since then (it snowed heavily last week), so I would say yes, mine was working properly.