Vacuum fittings with no hoses?

[22SHO]

On my recently acquired 1991 SHO, there are a couple vacuum fittings that appear to be potentially missing a hose, and I don't think the hose would connect the two as they are all of an inch apart. I don't have a picture for you, so you'll have to paint a mental image. On the underside of the intake manifold, adjacent to the Throttle body, and under the air bypass valve, there are two hose fittings pointing straight down. They are in the intake casting, not the throttle body. On my particular vehicle, one of the fittings (the one slightly nearer the firewall) looks like it once had a hose attached, but no longer does. The other fitting has been crimped for some reason and doesn't look like it ever had a hose on it. Does anyone know what these fittings are supposed to be attached to? I've looked for broken hoses or other vacant vacuum fittings, but have found none. Ideas?

 

[SHO#7]

On my recently acquired 1991 SHO, there are a couple vacuum fittings that appear to be potentially missing a hose, and I don't think the hose would connect the two as they are all of an inch apart. I don't have a picture for you, so you'll have to paint a mental image. On the underside of the intake manifold, adjacent to the Throttle body, and under the air bypass valve, there are two hose fittings pointing straight down. They are in the intake casting, not the throttle body. On my particular vehicle, one of the fittings (the one slightly nearer the firewall) looks like it once had a hose attached, but no longer does. The other fitting has been crimped for some reason and doesn't look like it ever had a hose on it. Does anyone know what these fittings are supposed to be attached to? I've looked for broken hoses or other vacant vacuum fittings, but have found none. Ideas?

The IAC sits on a type of platform that has two lines that run from it. Is that what you are talking about. I am looking at a spare intake and trying to figure what you mean.

 

[Ishodu]

Sounds like it the Throttle body coolant bypass may have been done. Its not a bad thing if thats if. See if you can get us a picture.

 

[Ishodu]

Is this the lines you speak of? http://www.superford.org/getfile.ph...e&filename=V6_TB_water_bypass_with_accent.jpg

 

[22SHO]

Still working on the pictures, but I can tell you it's not the coolant loop on the Throttle Body, because one of those hoses was leaking and I replaced both in my recent adventures. In fact, these fittings are not on the throttle body assembly at all. They are on the under side of the Intake manifold, between the throttle body assembly and the bypass valve assembly, and they are both pointed straight down (toward the block). I'll post a picture as soon as I figure out how.