Can’t fill up tank?

Snapped some pics, but didn't actually test the evap valve yet. Assuming it's the blue solenoid looking thing attached to the passenger side of the charcoal canister.

 

Ok so update to my situation: I already had a new roller valve and charcoal canister on hand. So I went ahead and swapped both and my problem is fixed. I had half a tank of gas, and after completing the work I was able to pump about 8 gallons in there without the nozzle clicking until the end. And when I cracked the gas cap it clearly wasn't holding any back pressure (no audible whoosh of fuel vapors as there was before).

I kept the old charcoal canister that has the old evap valve and I will try and apply 12v to it tomorrow, to determine if that was the culprit. Would've done that today but had a helper for a short window of time and wanted to get the new parts installed and the bed put back on, as I've got a trip to Crown King, AZ, planned for this Sunday.

My old roller valve appeared to be perfectly fine. Swapped it anyway because I don't want to have to pull the bed again anytime soon, but I'm leaning towards the charcoal canister and/or evap valve being the culprit. Keep in mind the new charcoal canister came with a new evap valve attached.