Ok so today i decided that i would try my best to find and fix all vacuum leaks in my 84 2.0l ram50 but i seen these two things with vacuum ports on them. Anybody able to tell me what they are and where the vacuum lines go? One is on the firewall to the right of the booster . And the other is on the driver side fender next to the coil. Any insight into what these are and do would be appreciated. 20181129_150012.jpg20181129_150042.jpg