Gas gauge not reading

[Bran0815]

Hey all, I have a 1991 gmc sierra (moon gauge) having a problem with my fuel gauge not reading. All wires are hooked, ohm tested the sender and its reading. Anyone have this issue? Any fixes? Thanks

 

[Sean Buick 76]

Normally it’s a bad ground wire connection. Remove the ground abs clean it up.

 

[PlayingWithTBI]

Anyone have this issue? Any fixes?

I had a similar issue with my 88, the gauge would only read 1/4 tank when full and go down to empty when ~1.4 tank. Then my oil pressure gauge started going wonky. I replaced the entire cluster with a Dakota Digital one