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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
then something is wrong with the cad, or its not getting the vacuum signal, you said you tested the cad? how was that done, and you said you tested vacuum? where did you test?
i took the vacume shift motor out and shifted from 2 to 4 wheel dr and it moves back and forth. i put a vacume gadge on the two hoses by the transfer case. it read a little less than 20. one hose had vacume in 2wl dr and the other in 4whl dr
if i remember correctly, there are 3 lines to the cad (vent, 4wd eengauge, 4wd dissengauge) and the one to the driver side should be vent, the middle should be vacuum in 4wd, and the one on the passenger side should be vacuum in 2wd.