I have a 82 Euro 240D. On top of the valve cover is a three way "changeover" valve, which, I think, is leaking. Thankfully, I was able to locate a vacuum diagram that is really close to what I have.

So, here is my question. On this picture, if I apply vacuum (or suck) from 2, while blocking 1 and 3, it does not maintain vacuum. I think it should. The car does not shut off, however, if I disconnect the line at [2] and block it, it shuts right off.



[1] and [2] go to a valve on the IP which is called the "vacuum control valve"
[3] goes to transmission

is the changeover valve bad?

__________________

'82 300D (project)
'46 Willys (project)
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