There are several areas where the PCV can clog. All are easy to
remove: the tower that the hose gots to is held on by 4 bolts, and
the other end there is a small restricive heater. Take the entire
thing off and use kerosene to clean everything. Blow out with air
and reinstall.
    I have never found a good reason for the heater? anyone have
    any thoughts on this?

            Eric                   86-VW4x4
            vw4x4@fyi.net          72-240z
            Pittsburgh, PA USA     1936-Chrysler

On Fri, 4 Jun 1999, Vernon Craddock wrote:

>         Last year I posted that the dipstick on my '90 vanagon always pops out.  Some
> responses said exhaust gases in the oil, but most responses indicated a clogged
> crankcase vent.  The crankcase vent is the PCV valve isn't it?  I pulled the
> hose that goes from there to the airbox.  Some crusty black deposits came out,
> but not enough to clog the hose.  Am I looking in the right place?  I have
> ordered a replacement dipstick as the current one is not all that snug, but I
> would still like to make sure the vent is not clogged.
>
> Thanks,
> Vernon Craddock
>