vacuum hose routing question

[pauld]

hi everyone ..
i have a1984 bronco2 2.8l automatic trans ...i have an open vacuum port right behind the electric choke ...i have checked the many vacuum hose diagrams available and can account for all the other vacuum lines ...this one is a mystery ...
is it suposed to be attached to a heat source like the gm quadrajet carbs ?
please see picture and maybe you can help...thanks paul

 

[adsm08]

What picture?

 

[pauld]

you were too fast for me ...i had to resize the pictures..

 

[adsm08]

I have no idea. Sure looks like it's for a choke heater, but that kinda seems to defeat the point of the electric choke stat if you have an exhaust choke stove.

I dunno

 

[Twister]

That's where my choke heater hose is on my 2100, but like adsm said it would be pointless with an electric choke.

 

[pauld]

thanks for the responses ....i'll look again tomorrow where it goes ..paul

 

[unoleisu]

I just looked at my old 85 BII sitting out in the yard, and it has the same thing, but the port is capped off with a rubber cap. It ran fine like that, when it was running. It may be that the carb is not original to the motor, as mine isn't. The choke heater may be for a different application.

 

[pauld]

it's a vacuum source for sure and goes to the choke housing...
when i bought the truck it had a hose connecting it to the main manifold vac source .........now it's getting capped ..thanks for the responses paul