Mystery vacuum fitting

[dguy]

'84 Duke.  Anyone happen to know where the plugged fitting shown in the photo is normally connected?

The "tee" from which it originates also has connections to the brake booster & the charcoal cannister.

[FieroDough]

that doesn't seem like an engine from a Fiero... or at least not the intake manifold.. Tehre is nothing I can think of that would be used by that vacuum junction. Only the brake booster seems to be used. the curled up line is for the thermac system, the other is for the Egr.. So I am no help.. Sorry.

[aaron88]

Vacuum line? What’s the big mystery?  It’s like central vac, clean your carpets.

I’m way too sleepy right now.

Aaron

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[Kevin]

  I looked all through my Haynes manual looking for pics of that area. What it shows is that there is a fitting coming out of the intake with two nipples on it one has a big hose coming off it and the other is capped with a simple rubber plug.  Kevin

[dguy]

Eric as far as I know it's an original Fiero Iron Duke...  but it's an '84 so it may look weird.    Maybe if Chris happens to catch this thread he could say whether or not it is a Fiero 2.5 that's in there?  I know he replaced the motor at one point...

LOL  Aaron...  you need to get friendly with the coke machine or a coffee pot.   


Someone on PFF suggested that the plugged line may have been the vacuum supply for a cruise control.  Not knowing what the motor was in before Chris obtained it I can't say, but that's the "best guess" so far.