1984 ford f150 5.0 fuel guage not working. what could be the problem? on 1990 Ford F-150

How to fix the problem? Are there any videos I can watch?

Asked by for the 1990 Ford F-150
poss the fuel tank sending unit. does the trk have dual tanks?
2 more answers
Probably needs a new fuel level sending unit.
The float in the tank is saturated and sinks ( replace the float) fixed mine that way.