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Discussion Starter · #1 ·
Okay so this has been bothering me for well, months, but at one point I decided to replace the nearly disintegrated vacuum hoses on my 2000 Beetle. Well, I found 3, and I remember that I think there's supposed to be 4....





So, I don't know where this supposed 4th hose is supposed to be, but I have a couple of educated guess, but I don't know what I'm doing, so I'll give you a couple more photos of... areas that I think are just generally suspect:



If anyone could give me a better idea what those are and where this.... 4th hose is supposed to be, that'd be awesome sauce, thanks.
 

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Discussion Starter · #3 ·

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The hoses marked A and B go to:
A - leak detection pump (connects to 4 hose panel)
B - N80 Evap purge valve
The hose above B is a cooling system hose that goes from the throttle body to the expansion bottle.

Auto part Fuel line Pipe Engine Vehicle

It looks like "B" is the one you are asking about. The other end connects to the left side of the purge valve marked A in this picture:

Vehicle Auto part Car Engine Fuel line

There is a picture in this thread that shows the part of the hose that goes under the intake manifold. It ultimately connects to a vacuum port on the very top of the throttle body.

http://newbeetle.org/forums/2-0-liter-gas/52925-need-tutorial-intake-manifold-removal.html
 
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