AC Stuck on Defrost, need pics

[Flyingobjects]

Would anyone happen to know or have a picture of where the black vacuum line goes into the firewall, and fingers crossed, where I can find it inside? Long story short mine was cracked and I went a tugging and pulled it out. Not one of my better moments... I believe it goes in though the same grommet as the grey heater vacuum line that's in a sleeve, but not sure.

 

[Plati]

Helps to know the year & model
Picture isnt bad either

 

[Flyingobjects]

It's a 2004 XLT 4x4, I don't have a picture but by the ones I've seen posted for the pat year on this forum they all are pretty much the same. That line comes from a T bellow the 4x4 solenoid, but nobody has posted a picture of it actually entering the firewall. On an F-150 forum I see a picture of the grey line going through, same as the expedition, but the black line going to the control unit wasn't present.

 

[1955moose]

You know what I did in my early days when I was stuck and couldn't figure where a part went. I cruised over to a dealer or local shop that had same vehicle, and asked nicely could I look under hood and write down the way they go. No shame, we've all done it, Especially if you tore down vehicle weeks earlier.

Sent from my N9131 using Tapatalk

 

[Hamfisted]

Well, this is a pic of where it enters the firewall. You are correct. It's the same grommet that the hot water valve vacuum tube come out from.




Feel with your fingers up under the blower box and see if you can feel the hot water valve vacuum line. I know the vacuum supply line ends up attached to the vacuum control module there under the dash just forward of the center console. You have to remove the center console to get to it.

The vacuum control module looks llike this one :

 

[Flyingobjects]

Thank you both. The picture and the suggestion about the dealer (never thought of that). I did assume that the supply line went to the AC vent selection controls. Time to get intimate with my wagon

 

[Flyingobjects]

Well, I have closure to my dilemma. Long story short, as mentioned above I had pulled out the vacuum feed tube from the firewall. The grommet it passes through into the cabin has two holes, one for the gray tube and one for the black. In-bedded in the grommet is connectors for these tubes. I found this, and the mating part of the black tube in the cabin by pulling out the grommet. Here are a couple of pictures. Also, this black tube comes from the "T" right bellow the 4WD solenoid pointing downward. Also, just to log it for someone to read in the future, the passenger side auto locking vent tube is further inward from that location sticking out of the same sleeving as the grey heater vacuum tube and is an open line. (I thought it needed terminated.