kurek
Senior Member
- Joined
- Aug 7, 2019
- Posts
- 2,662
- Reaction score
- 3,815
- Location
- Northwest
- Ram Year
- 2015
- Engine
- Hemi 5.7
I was under my 2015 RCSB yesterday having a maintenance look-around after washing and noticed this unit dangling upside-down next to my fuel filler hose. Photograph taken from below the truck, behind the cab, forward of the driver side rear tire. Visible near the center of the photo are the fuel filler neck assembly and this cylindrical device about the size of a RedBull can.
It was originally affixed from the factory with a large zip-tie. In this photograph I had flipped it back mostly upright, but it had been hanging down and slapping the inside of the body sheet metal. (You can see darker marks below from where it was dangling)
I don't know what it actually does but I'm sure it's better when it's held upright where it belongs than when it's bouncing around at the end of its hose.
Just an FYI in case anyone is inclined to keep an orderly truck. Also if you know what that device does, comment up I'm curious.

It was originally affixed from the factory with a large zip-tie. In this photograph I had flipped it back mostly upright, but it had been hanging down and slapping the inside of the body sheet metal. (You can see darker marks below from where it was dangling)
I don't know what it actually does but I'm sure it's better when it's held upright where it belongs than when it's bouncing around at the end of its hose.
Just an FYI in case anyone is inclined to keep an orderly truck. Also if you know what that device does, comment up I'm curious.
