I am looking at the link now...thanks.
Earlier today, out of the blue, the guage went from the proverbial 1/8 reading to about 1/2 tank, which is where it was. Then I drove it down to the point where the fuel light did come on and filled the tank. It went back to just under half tank reading, then as I drove it about 20 more miles before stopping just now, it gradually moved up to 3/4 tank reading.
I am hoping that once it goes to the top, hopefully, the diesel will lubricate the float mechanism enough to allow it to function normally. Is this an unusual problem?