Fuel Gauge Issue

[JayChicago]

Originally Posted by joe 1950

don’t know if this will help but i’ve always checked the unit like this take the wire off the sender with key on ground the wire gauge should go to empty open wire goes full this will confirm that gauge and wiring are ok sender is the problem good luck

I believe the above is incorrect. Grounding the sender's wire should make the gauge go full. Open sender wire, gauge should read empty.