I noticed yesterday when I filled up that my gauge didn't read that I put any fuel in and after about 5 minutes it slowly started to rise. I don't know what would cause this. It has done this before and then it stopped but now its happening again.

 

Ive seen it happen on mine once or twice. Usually i can cut the engine off and back on and it will begin to register the new level of fuel. IDK why though.

 

I know my old truck did that quite often. I found out later that the ground strap for the bed was broken. I replaced it and never had any issue's after.

 

happens to me once a month maybe. turn truck off and back on. works great again.
will check my ground... didnt even think about that.

like the new sig dirty!

 

yeah its def the bed grounding strap, mine had the same thing happen like three fill-ups in a row, and someone from work said to just turn it off and turn it back on, and yes its a quick fix, but i happened to be putting on my new dual exhaust and noticed the grounding strap in two pieces just dangling, so i replaced with a nice heavy gauge wire you would use for wiring up a battery, and left a little extra so it could flex, and no problems since!

 

That must be it, when I took the grandpa boards off I let it dangle cuz I didn't know wtf it was. I figured a ground but my tailights worked with it unhooked so I just said screw it. I'll go reattatch it.

 

I think this might be my issue