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I have a 99 Dakota. so far we have replaced. comp, evap core, orifice tube, relay, a/c temp blower switch, both pressure switches, and wire from comp to relay. I have voltage to relay from a/c switch (#86), ground to (86a), power from (30), but no comp. according to conditions in theory. the ac should be working but it isn't. 2 mechanics are boggled with this any ideas?????
Why did you replace all those parts to begin with? Trying to get it running? The switch you replaced you are talking about the cab HVAC dash controls if so is it a new control module or a used one?