Sounds like water in the annulus of the throttle cable and its
sleeve.  It'll eventually rust too and make it stick worse.

> I've had runaway engine problems in a 77 van and an 85 vanagon.
> They always occurred in the winter, and they always went away after
> the engine warmed up, or I pulled over and jiggled the heck out of
> the throttle linkage at the engine end.  I always suspected ice
> build up somewhere but I never figured out where.

Regards,

-Karl
__________________________________________________
 karl@makarov.com - PGP encrypted mail preferred
 The Makarov Page: http://makarov.com/
 ICQ# 8403682   Phone/fax: 1-888-625-3925
 PGP info: http://makarov.com/pgp.html