My gas gauge stoped working it some times goes up to the full mark after I fill up but soon goes back to e does anyone know what to do to fix it ? I pulled my cluster out and all the plugs behind it are all good could it be the sender in the tank ?

well it's either the sending unit or the gauge. from working on a lot of u-hauls i found that most of the time it's the gauge. a mult meter will help you find witch one it is.

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1987 ford ranger 4x4 Lima plain right now. coming soon turbo Lima 15~20 psi

could have a loose ground also, some are easy to find some are not good luck

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2001 Ranger Edge 4x4 , Stepside,FRF decals, 4.0L SOHC decals, Primus IQ brake controller, curt 2" rec. hitch, custom winch mount,
Tinted glass, Yellow BUGGMAN OVALS a real treat to have. OHC, CB, night vision goggles, 36" periscope,
DiabloAmarillo = The Yellow Devil