Merv,

If this problem just started up... than I would check all your vacuum lines,
check the ends for cracks under the fabric coating the line. A very common
problem, and can lead to other performance issues.  If you have always had a
problem, some people find it helpful to install a vacuum holding tank, like
this one.
http://www.rockauto.com/catalog/raframecatalog.php?carcode=1019461&parttype=
5177&a=FRc1019461k586755
Very cheap, and works wonders!

Good luck!

Jack R.
84 Westy Wolfie

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Mervyn Readman
Sent: Wednesday, May 20, 2009 12:07 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Cruise control issues

My cruise had not been working for a while now. When I set the cruise I feel
it kick in through the accelerator but then it fades out pretty quickly. Do
you think this could be vacuum related. Thanks Merv.