I desperately need a clear 722.416 vacuum diagram for an 85 300Dt (California car) to diagnose late shifting. I cant seem to see the hose colors on the ones I have seen on this thread. Any help out there? Thanks in advance.

This diagram should be what you need. It shows the vacuum line colors along with descriptions of each part.

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85 300CD
83 300TD
78 240D (daughter)

Thanks!!