I have a fuel guage on my 83 fj that is stuck on half tank and I ran out of fuel. Filled the tank up and still reads half. Replaced this gauge with a used fuel gauge guaranteed to work. It shows empty when engine is not running.. (good) Will go up to half a tank when vehicle is running..... then fluctuates a little more than the width of the needle. Any thoughts as to what might be happening here.
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