When I had this problem, it was a connector that had come loose. You will need to remove all screws on the instrument panel, pull it out (I wasn't able to pull it completely off, just enough to get my hand back there and I could feel the dangling wire and where it connects). Gauge works now.
If the digital dash lights up but shows no numbers for the speedometer on a 1989 Thunderbird LX, it is possible that a fuse is blown for the speedometer and the fuel gauge. There is more than one light in the dash for the speedometer.
why doesn't my rpm gauge and temp gauge, fuel gauge not work
More then likely you need to replace the Thermostat.
No.
Yes, key on, engine off, the fuel gauge should work.
why does the fuel gage on 2005 mustang don't work?
THE FUEL PUMP FLOAT HAS GONE BAD OR THE GAUGE NEEDS TO BE CHECKED
The fuel tank pressure sensor is for the EVAP system. It has nothing to do with the fuel gauge sending unit.
fuel gauge quit working on 1997 buick park ave. what is it?
why wont 82 Chevy van fuel guage work
check fuel sending unit and float. Also check fuel gauge itself.
Bad sending unit in the fuel tank.