i seen this tinkering under the hood in the 97 today. For the life of me i can't find out where this vacuum line goes. Can someone go look at theirs, or take a pic for me? lol. Im pretty mechanically inclined, and this is really gettin to me!!

here are the pics.
http://i52.photobucket.com/albums/g2...s/100_0184.jpg
http://i52.photobucket.com/albums/g2...s/100_0185.jpg
http://i52.photobucket.com/albums/g2...s/100_0186.jpg

 

On my Blazer i had a vacuum line there and attached to small nipple (which looks like may be broken in your case) right inside the fender well. You won't be able to see it just feel around you'll feel it.

 

It goes to the vacuum reservoir which is located inside the outer fender. As stated, it looks like yours is broken.

 

on mine it connects to a vacum canister that is bolted to the hood.

 

It is what controls your air flow diverters inside the cabin- plug it intot he ball mounted to the hood

 

thanks guys!

 

No problem!!