Cruise control question?

Ok so looking into my cruise control and I noticed a couple of things. Firstly, there is a “tick\pulse” constantly going in the pump or dump valve area that continues even when their unplugged. Secondly, I’m not sure about hoses. Is there to be a hose on both bottom nipples? Mine only has one, as seen in the picture. Thirdly, with the switch off ,I have power to the pump on the one post. When I switch it to on, I have no power to the pump. At least I guess it’s a pump. I thought it was the bellows, but I don’t know if I have any on my 93. If I do I don’t know where they are. Any ideas?

Ok so I found out on the other forum that there isn’t a hose on the nipple! Good to know! Is the bellow on the 4.0 the little canister that’s connected to the throttle body?