It's a evaporative system hose, it goes to the evap canister.

It depends on if you drive in dust a lot or not.
This time of year that's unlikely, depending on where you live of course.
Most likely, no harm done.
Scott
www.turbovans.com

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Wesley Pegden
Sent: Sunday, February 03, 2008 9:58 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Clear hose from top of air filter box

When I was in my engine compartment earlier, I noticed that the clear
hose coming off the top of the air filter box was disconnected.  I'm not
sure how long it's been like this.

2 questions:
1) where does this hose go?  I couldn't figure this out looking through
the bentley
2) I guess this essentially means I've been running on unfiltered air
for probably quite a while.  How bad is this??

Thanks for any tips,
Wes
'83.5 westy vanagon