A6 4.2 V8 Crankcase vent valve buzzing noise.

[Tony Hoffman]

I"ve had to replace several PCV valves on 2.0T's for this reason.

HTH,
Tony

On Wed, Jan 18, 2012 at 6:49 PM, John Larson <john at westcoastgarage.net>wrote:

> Sorry for the double post, the last one went without a message.  My bad!
>  OK, here's the issue.  I have a 4.2 V8 here in the shop with a buzzing
> noise (honking?) coming from the near new CC vent valve.  Internet searches
> yield You Tube videos which perfectly portray the symptoms, but nothing in
> the way of diagnostics or repair information.  I'd hate to throw another
> $132 valve at it if there is another possible cause.  Any tips,
> semi-informed WAGs, opinions, or pointers to a site where I might find help
> would sincerely be appreciated!
>
> Thanks, John