Recent content by blunderblorm

You could try replacing the ESIM, there is a weight and plenum that lifts as you fill gas to allow the vapors being pushed out by the new fuel going in through the canister. It's a ~$35 part and that was my issue or so the dealership said. It is also very easy to replace. This site has details...

I am not really certain yet, I'll try to get under the truck again when I have time. It seems it could be the ESIM only, it has a weight that moves tied to a plenum of some sort acting as a check valve. It could in theory block flow to the canister from my understanding of it. From the page...

2021 Laramie 1500, it should be the 26 gallon tank according to the sticker if memory serves. Seems to make sense with a full fill giving me 468 estimated miles and I average 18mpg.

I got my truck back and have filled up twice without issue. The dealership said they replaced the ESIM. That is the only part that is noted on the work receipt except the fuel they added for their tests. I got under the truck to look around when I got it back... I could swear the gas tank looks...

The first time this happened to me I was trying to fill when it was running, it was -15F on a Christmas eve with wind... I thought I broke mine that way so never did this again.

Maybe this video would be helpful if this turns out to be ESIM, it's how they work. There is also a diagram though not detailed in the video. related:

I suppose someone could try disconnecting their ESIM and maybe the tank would fill? I think it is connected to the canister? It seems to be a mechanical part by a plenum, weight and spring which opens/closes due to vacuum vs no vacuum. If the part stays closed, I think it wouldn't allow any...

My 2021 RAM Laramie (26 gal tank) had this issue last winter on Christmas eve, I could not fill more than a split second of fuel before it clicked. I tried all angles with the pump and pulled it out bit by bit, no luck, it would then just spit fuel back at me. I had to drive 180 miles and it...