[V8] Excessive Oil and Emission Pressure
ville.hiivola at suomi24.fi
ville.hiivola at suomi24.fi
Mon Sep 28 01:47:23 PDT 2009
It's a -92. I see it in the picture too, i took from ETKA. In mine, it
was visible through the tank cover opening, to the left side, inline
with the breathing hose.
I found this also in ETKA online, part number 18 in this illustration:
Someone else should try this too, so it could be confirmed it's the
cause of this problem.
>Lähettäjä: chance9121 at gmail.com
>Päivämäärä: 27.09.2009 23:01
>Vastaanottaja: <ville.hiivola at suomi24.fi>
>Aihe: RE: [V8] Excessive Oil and Emission Pressure
>That is interesting what year is yours again? I don't remember a
valve like that on the 91 ill have to check.
>---- Original Message ----
>From: "ville.hiivola at suomi24.fi" <ville.hiivola at suomi24.fi>
>Date: 9/27/09 3:45 pm
>To: "v8 at audifans.com" <v8 at audifans.com>
>Subj: [V8] Excessive Oil and Emission Pressure
>Well, i think i found out the problem. Few days ago my car wouldn't
>start and i found out fuel pump wasn't working, so i replaced it.
>the whine didn't go with that. But then i noticed that the
>"breathing/venting valve" was making the sound. It's the one
>to the line going to the tank cover. I took that valve out and
>it with vacuum pump. I was able to make the valve do the "whine" by
>aplying vacuum in one direction and restring it a bit. I'm not quite
>sure if this valve is basicly a check valve, or what it's purpose
>But it was flowing in both directions, so i suspect it wasn't
>correctly. Anyways i had one check valve handy so i replaced it with
>that and now the whine seems to be gone..
>I hope this helps.
>>Lähettäjä: toml99 at todomundo.com
>>Päivämäärä: 23.09.2009 19:31
>>Vastaanottaja: "v8audi"<v8 at audifans.com>
>>Aihe: [V8] Excessive Oil and Emission Pressure
>>Well, Ville, I read your idea about the gas cap and I went out and
>>switched caps and I didn't hear the noise! I got excited and
>>to write a reply, then figured I'd better actually warm the car up
>>and drive it around.....Heard the noise again within a few
>>blocks......so it's not the cap in my situation. Mine's coming
>>under the fuel pump plate and I'm confident that it's either the
>>pump, or maybe just the check valve like the my old saab. The saab
>>rebuilt for my girlfriend's daughter also made the same noise, and
>>came with a spare fuel pump. When I went to replace it, I noticed
>>the "prepump" harness(2 pumps) was disconnected....plugged it in
>>noise went away.
>>I noticed in the manual that there's also something called a
>>and breather valve"....and a Gravity valve....hmmmm venting and
>>breather valve...that sounds like something that could make my
>>noise. Book shows it on top of tank,inside of a larger "support
>>hose". Anybody seen this valve before? By the diagram, it looks
>>like 1 more thing to be passed on to the new owner, but since a
>>of you have the same noise, it would be nice to figure out if
>>not a $150 fuel pump...Tom
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