Hey guys, I've got a copy of the service manual but I can't seem to find anything about the transmission or vacuum system in it. I took the car to a transmission shop to have the automatic trans rebuilt (it was a mess, but he got it all fixed) but he says now there's no vacuum at the modulator. Without a diagram of how the system works I'm a bit lost as to what is supposed to do what. Is there a diagram for the vacuum system somewhere, or a common part that would fail? The door locks still work and the engine turns off, so something is getting vacuum.

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