[A8] Large Vaccum Leak-likely causes?

Rich, Jack JRich at Kronos.com
Wed Jul 7 16:15:32 EDT 2004

There are undoubtedly a number of hoses (with which I'm unfamiliar) in
the engine compartment that must carry vacuum.  You might try squeezing
various vacuum hoses while the engine is running and seeing if one
collapses or loudly sucks air or otherwise reveals itself.

Also, clear the code and see if it comes back, especially while trying
the above.


-----Original Message-----
From: a8-bounces at audifans.com [mailto:a8-bounces at audifans.com] On Behalf
Of John Markowitz
Sent: Wednesday, July 07, 2004 15:08
To: a8 at audifans.com
Subject: [A8] Large Vaccum Leak-likely causes?

Hi All:

I have a 1998 Audi A8 Quattro with a check engine light on. My OBD tool
gave me only limited info on code definitions but indicates "A large
Vaccum Leak" and various other codes I don't know. Beyond a
loose/leaking gas cap are there any other common causes of this? Engine
seems to be running relatively normal.
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