Vent canister hanging by filler neck ?????

[dzsmith]

Today I had to climb under my truck and I noticed something with a hose attached hanging behind the cab, driver bed side by the fuel filler neck . matter of fact the hose is attached to the full hose with a clamp/clip. Anyway it’s sort of a box , and it had 2 pieces of foam inside . Some sort of vent/filter canister type thing. I cleaned the foam since it was hanging there . It has 2 tabs , so you can tell that is what is used to attach it where ever it’s supposed to go. However I cannot figure out where it’s supposed to go,or how it ever came unattached . I took some pictures . Perhaps a vent for the axle….. it’s not the fuel tank canister as that is in front of the tank and is round . 2014 gmc Sierra 1500 z71 double cab

Edited January 26, 2024 by dzsmith
Vehicle make

[dzsmith]

I figured it out . This piece in the picture is part of the vent can for the tank. A hose runs from the can , back to the fill neck . The shroud or whatever you want to call the piece that you are looking at when you open your fuel door, is where this attaches . It’s on the top side and the 2 tabs I mentioned are what holds it there . Tons of info on replacing the can out there but very little is mentioned about this . If you were to replace the can and solenoid as an assembly this would come with it from what I can gather . Just thought I would update this post to key Yal know I did figure it out .