Where does this hose go?

[gr_speedy]

I got this vaccum hose coming from the engine bay to the inside the car (left from the fuse box) and i can't see where it goes. Manual is also not helping me much (pages little blurry).

[73 Centurion]

My guess would be that goes to the HVAC controls. If you have A/C it uses vacuum to open and close the proper flaps to make the system work.

There is a octopus looking thing on top of the controls that sends the vacuum to the right places. This line probably needs to connect to that.

Of course if your heating and cooling system are working perfectly then I'm in :error:

If you want to test your HVAC system you can plug the hose that runs to the controls into one of those handheld vacuum tools (might-vac) and cycle through the various settings. It should hold vacuum in each setting. If you find one setting that won't hold a vacuum you need to check that hose or the diaphram that opens and closes the flap.

John

[Smartin]

I didn't think there were any vacuum lines that ran straight through the firewall like that. All the ones I know of run into some sort of manifold at the firewall, and then plug into the manifold on the other side. That's a big vacuum line for an HVAC system. Most of those lines are 1/8" stuff.

[gr_speedy]

It is connected (inside the engine bay) with a "T" to the vacuum line that goes to the cruise and to the vacuum modulator that is mounted on the right side of the firewall.

[Gum,beest]

Hello Speedy
did you found out where this vacuum line belongs to because i have the same problem
When i was fideling with the buzzer from the speed warning it must have come of somewhere but i cant find anything it plugs on to I was thinking about the cruise control
I even removed the dash pad and did not find anything
My climatecontrole stil works so i dont think its from there

Hope one of you guys can point me in the right direction

Greetz Erik

[gr_speedy]

Hi Eric,
i found the location it was over the lower vents in circle thing with another couple other hoses. It's been a while since. I haven't done anything to my Centurion since July had and still have some other things to take care of. When i find time ( car is parked at my friends place 30 miles from me) i'll try to take a pic and post it. Greetings to all of you guys hope to get past some stressy time and visit more offen.

[Gum,beest]

Thanks Speedy
I'l try to take a look at mine this weekend
Hope to find something like what you described

[Robroy]

Long time no see Foti! :D
Good to have you back onboard….:beers: