2017 Expedition starting system fault/ fuel gauge reading full and temp gauge not working

[dheron107]

Good morning all I started having an issue couple of months ago the starting system fault. I read somewhere that it could be the key fob and a dead battery so change the battery on the fob and seem to work for a while. The other day was then the entire computer system started freaking out and I will shut the truck off, lights would than stay on and go off and eventually the battery died so I jumped in and bought it to my mechanic. They found out that there was a leak in the windshield, water ran down on to the fuse box and inside the rail and all the wires that were submerged in water.
They dried everything out. Everything seems to be working fine now, but the fuel gauge is reading full now the temperature gauge is not working.

Could this be a fuse issue or something much greater.