Leaking hydraulic fluid

[Kneale Brownson]

The "pentosin volcano (or fountain)"  usually means the pump is sucking air
and causing the oil to froth.  The air source commonly can be the seal
around the pulley shaft or the banjo bolt seals.

At 09:01 PM 04/07/2003 -0400, Ms. B wrote:
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>Help! My quattro is leaking hydraulic fluid what appears to be from the
>reservoir itself.  From the cap!!  When the car starts and the system
>pressurizes and I move the steering, it starts to bubble out of the cap
>like it's over pressurized.  I don't see fluid leaking anywhere else other
>than there but it's bad enough that it empties the reservoir in about 15
>minutes under pressure.  Do I have a pressure valve that's not functioning
>anymore?  The car stood for about a year without anyone driving it.
>
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