Charcoal Canister Hookup

[Moister Oyster]

Hey guys,

I'm back begging at the altar of knowledge with nothing in return....
I'm 99% certain I've pinpointed the cause of the rough idle/intermittent stalling in my 1984 5.0, and it's a lack of charcoal canister. Over the weekend when trying to replace the broken hoses coming from a purge solenoid I couldn't find one of the hookups, that's because the canister must have come loose and fallen off.

So my question is this: is it just as simple as installing a new canister and hooking it up to the carburetor through the solenoid, or does this one need to be hooked up to the gas tank as well? As far as I understand, there's 2 of these, 1 in the front fender, the other mounted on the frame rail below the battery. I'm missing the one mounted under the battery.

Here's where it should be:


And this is a diagram of a 1985 engine I found, it's from another thread but I've circled which canister I'm missing. It's similar enough to the 1984 to show what I mean:


Cheers guys!