[A4] Suction/Purge Valve and oil smells/leaks?

Richard Hurt rnhurt at gmail.com
Thu Jul 19 08:07:30 EDT 2007


Thanks for the info.  Keep us informed on your progress and take lots of
pictures.  :)


BTW: Does anyone know of any good car Wiki that we can post these findings +
pics on?  I know AudiWorld has something similar but you have to go through
a moderator and it's not at all easy to use or find stuff on.

On 7/18/07, Derek Pulvino <dbpulvino at hotmail.com> wrote:
> Reading through stuff at Audiworld, it appears it's a pretty common
> problem.
>   Mechanism would be PCV system getting blocked creating excessive
> pressure
> in the engine (crankcase/head/etc).  The seals seems to be the weak link
> where this pressure is vented from...leading to pressure venting
> co-mingled
> with oil.
> While the seals can become more permanently damaged, many seem to have
> found
> freeing up the vent system stops the oil leaks.  I'd give a link to what I
> was looking at, but Audiworlds web addresses aren't set up for easy
> linking.
>   I did a search of the 30vV6 forum using "suction pump" as the search
> term.
> Anyhow, getting ready to order the part from SJM.
> Derek P
> >From: "Richard Hurt" <rnhurt at gmail.com>
> >To: "Derek Pulvino" <dbpulvino at hotmail.com>, "A4 Mailing List"
> ><a4 at audifans.com>
> >Subject: Re: [A4] Suction/Purge Valve and oil smells/leaks?
> >Date: Wed, 18 Jul 2007 15:34:22 -0400
> >
> >WOW!  I'm experiencing the same symptoms.  Please let me know if you get
> in
> >there and find out that a clogged valve was the cause all this
> time.  I've
> >been living with it because I can't find the leak and I can't afford to
> >tear
> >it down.  :/
> >
> >My symptoms are:
> >  - Oily windshield on the inside
> >  - Burning smell after a hard drive (sometimes)
> >  - Copious amounts of oil dripping off the pan and parts thereabout.
> >
> >The bad part is that I can't seem to find out where the oil is coming
> from.
> >The block looks pretty clean and dry (at least what I can see) and the
> >front
> >camshaft seals were replaced with the timing belt.  It didn't seem to
> make
> >any difference.
> >
> >Thanx!
> >  Richard
> >
> >On 7/18/07, Derek Pulvino <dbpulvino at hotmail.com> wrote:
> >>
> >>Getting ready to replace one of the broken hard plastic cranckcase vent
> >>lines on the V6 which will also wind up opening up some space near the
> >>back
> >>of the engine.  I've heard a rumor that the suction pump/purge valve,
> also
> >>located in the back of the engine, can plug and lead to oil leaks via
> >>positive pressure in the engine.  Also read that this can lead to an oil
> >>burning smell in the cabin, which I get from time to time along with
> some
> >>oil leaks off the front of the engine.
> >>
> >>As I'm going to be working in that area, I was wondering what peoples
> >>experience with this part may be and if the above story is more than
> >>rumor.
> >>Was thinking about ordering the suction pump at the same time as my PCV
> >>hard
> >>line.
> >>
> >>Derek P
> >>
> >>
> >>_______________________________________________
> >>A4 mailing list
> >>A4 at audifans.com
> >>http://www.audifans.com/mailman/listinfo/a4
> >>

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