2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
trouble w/ fuel gauge. full empty no wait full again
Seems like your sending unit has gone bad. My 95 did the same thing to the point of using the trip odometer to judge the remaining fuel. I used this method until the fuel pump went bad and I had the replace the fuel pump module and it was back to normal. From what I have read some fuel blends leave a residue on the wiper arm of the sending unit and it starts out with erratic readings and finally just quits.
Not really, the sending unit for the gauge is a separate part of the whole thing. (I think you can get a replacement pump, but, it's a pain in the keester.....) If you want to replace the sending unit, it comes with a pump......