1999 Chevrolet Monte Carlo "jeep fuel gage stuck full" Questions

jeep wrangler yj turn key on gas goes to full and stays there untill i turn car off the fuel sending unit is probably stuck and need to replacing. common problems to many older vehicle it tend to read

...fuel warning lamp still work? if not, that is clue 2 that the sender is BAD. if dead lamp. that means sender bad, or wires TO it are bad, as in all cases, electrical.. In a real Jeep dealer, they use ...

...Jeep if input to map is good, but output wrong, the map is DOA. Fuel delivery system. last time serviced? Fuel filter, Fuel pump, Fuel pump relay, Fuel pick up in tank may be plugged. Fuel pressure ...