I have a mity vac, thats how I found the leeks.

Good.

Vacuum diagram?

no vacuum diagram.

http://www.stinkbusters.net/vacuum.pdf
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.
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The 601 engine isn't included.

Does this help --



or this link --

http://www.peachparts.com/shopforum/diesel-discussion/105297-vacuum-diagrams-post2636770.html

If not here is a link to an external site claiming to be the FSM. I've been told if the FSM is hosted on an external site we can point to it.

FSM

If I am in error please delete my link.

Bob338, I am going to delete my posting of vacuum.pdf, make sure you keep what you want. I also suggest you download the FSM quickly, it may disappear.

You'll have to search though it your self to find the vacuum diagrams (I can't find them but others say they are there).

And then there is the Russian site. Enter your VIN -

Enter VIN

Thanks, I already have, just in case.

That next one was out of EPC. Actually they are all helpful, the locations of some of the switchover valves is just a bit different but it provides the general picture.

The vacuum lines beyond those shown on EPC are really quite simple on the 122 and 601 engine (I have one.) I too had two leaks but mine were at the connectors at the switchover valve to the outside of the glovebox. I too hard hard shifting but in addition to those two leaks there were others. The main problem I had with hard shifting was the modulator on the tranny. When I changed that, and fixed the other 5 or 6 leaks in the vacuum system, all is GOOD.

The check valve referred to is right next to the electrical center, under the hood. Mine was fine. The modulator leak was the source of my hard shifting in addition to a switchover valve on the passenger side of the engine compartment right opposite the battery.