I have a vacuum leak, which I found, but I have no idea where its supposed to be connected. I my jeep is an 89, with the 4.2L carbureted. when standing in front of the jeep, on the far rear right side on the intake, there is a "module" that is not connected to anything. The truck idles real rough, until I stick my finger on it, and then it idles just a hair high (the carb was supposedly rebuilt so it may just be out of adjustment) but it idles smoothly at that point. I have looked through my Haynes, and don't even see a picture of this to identify it. Like I mentioned, its at the far rear of the intake and it looks like it screws in, and something is supposed to plug into it..? Any thoughts / ideas as to what it is, and how to plug it into what ever its supposed to be connected to?
Thanks in advance!
George
Thanks in advance!
George