A quick and dumb question about RS heater tubes...
 

When you remove the factory blower fan and all the other plastic ducting, there is a small vacuum line left detached. Should this line be plugged or left as-is?

This one?

If so it's the dryer to keep condensation out of the rear center section.

Keep it.

It's this line -- I pulled it out and it's resting against the tube. I plugged it with a short black screw, but am wondering if it should be left open.

Never seen one up there. Where does the other end go?

Is the normal dryer onre further down.

I'm assuming this is because your car is a '95 and mine is a '96?

It goes back to a 4-way intersection of small vacuum lines, and each line goes off in a different direction to various parts of the varioram system. I could trace them but it would take a while.

Hhhmmm, that looks a little confusing!

Here is a pic of an RS M003 heater pipe as it left the factory, hopefully you can spot where everything goes? :)

http://i111.photobucket.com/albums/n...r270707023.jpg

Both my '95 engine w/ oem RS tube and my '97 vram w/ Thoms c/f tube are exactly as pictured here
http://i111.photobucket.com/albums/n...r270707023.jpg
'97 in '95 chassis
http://forums.pelicanparts.com/uploa...1173803087.jpg

Noah's photo shows the plugged vacuum just resting against the heater fan bypass pipe. It is the line to the vacuum operator for the reverse activated damper in the fan duct (suppose to keep exhaust out of the heating system when backing up).
The line should be plugged.

Mike