As you all know I have a problem with my fuel gauge in the past. But I have found a way to fix it without taking the fuel gauge out
for cleaning or to replacing the pasrt.(in the back of the gas tank). I added "STP water remover" in it, and is been a month the gauge never jump anymore!! I don't know if it just my car but give it a try. Thanx, I hope this help

JohnSC16V