ISV Cleaning

[Bernie Benz]

> From: Brice2004 at webtv.net (Brice Warnick)
 
> Kneales post gave me something to do today for cheap.  Auto Zone has
> carb cleaner for 99¢ a can. So I pulled the ISV and sprayed it out
> real good. It is the original ISV and to my surprise it was extremely
> clean. I sprayed it anyway since I had it off. I took a thin flat
> screwdriver and opened the inlet  and took another thin screwdriver to
> hold it open and the sprayed a bunch of carb cleaner in and capped each
> end and shook it real good for awhile. No residue at all.
> Dumb question but why are some ISVs really clogged, some medium dirty
> and some really clean? What causes that?
K&N air filters.

Bernie