4000Q Stalls when I let off the gas

[Robert Mangas]

Years ago another lister (mebbe Phil Payne?) suggested putting an 
appropriately sized spring inside that hose to prevent it's collapse.  
Excellent idea, IMO.

>From: AUDIJIM at aol.com
>To: quattro at audifans.com
>Subject: Re: 4000Q Stalls when I let off the gas Date: Sat, 29 Jan 2005 
>14:30:05 EST
>
>Look at the vacuum hose that connects to the ISV. While the engine is
>running, they tend to collapse due to the vacuum suction. Over time, it 
>will generate
>a vacuum leak. You can usually find it split on the side you can't see. The
>crack/split will be facing the intake manifold. The part number for that 
>vacuum
>hose is 034 133 997. This has happened to me before on my 87' 4000cs Q. I
>have since eliminated the rubber vacuum hose for one I made out of 
>stainless
>steel tubing. No more collapsed vacuum hose!
>
>Jim
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