[Vwdiesel] TDI vacuum pump question

Tad tadc at europa.com
Thu Dec 31 12:14:08 PST 2009


That was the symptom I had - boost would go away whenever I was "driving
aggressively".  The hard acceleration would make the engine move enough to
open the split hose and dump the vacuum, which in turn killed the boost and
the power, which made me slow down, which made the vacuum and boost
return... :)

On Thu, Dec 31, 2009 at 11:31 AM, Shalyn Shourds <sshourds at flash.net> wrote:

> That's exactly what it was.  I was adding coolant this morning and saw a
> dangling hose that I'd not seen looking at it in the dark.  I don't
> understand how the whole system works, but I also lost a bunch of
> power--something about the turbo boost being vacuum regulated.  I'd ordered
> an MAF sensor, but it's all good now.  More or less anyways.  I'll have to
> helicoil one of the engine mounts that got stripped out in the same
> process......
>
> -Shalyn
>
> --- On Thu, 12/31/09, Tad <tadc at europa.com> wrote:
>
>
>
>
> Long story short I bet you've got a vacuum leak somewhere.  At this point
> it's probably prudent to replace all of the vacuum lines, which are probably
> all getting brittle.  This is one of the things that has been on my own
> to-do list for a while now...
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