Can you expand a little? What car? What part, connector, what it is plugging into, the canister? Maybe an overview of the engine compartment. And what’s the problem?
An auto parts store can tell you.
That’s the problem I don’t know the name of the part. Chrysler 200 2013.
Well…I see what looks like some sort of fluid hose coming out of the left side of whatever that’s plugged into. My [total and complete] guess is that it’s the engine coolant temp (ECT) sensor.
The plastic housing that is leaking is labeled as the “Coolant adapter”, number 16 in the diagram;
Rock Auto has it listed as the thermostat housing/water outlet.