I work with an Isuzu box truck with a flip forward cab. I noticed a loose wire near the gas cap. It looks like a ground wire to me, and there is a nut welded to the back of a plate that looks like this wire should go there. The wire appears to be connected to the sending unit. Due to the location of the wire in relation to the gas cap, I don't want to screw it back in without confirming what it is.
Pictures of wire/plate.
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