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Replaced sending unit, still no fuel gauge reading

Discussion in 'Stock 1991 - 1994 Explorers' started by Punjab, January 7, 2012.

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    1. Punjab

      Punjab Member

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      City, State:
      Colorado
      Year and Model:
      '94 Limited
      The fuel gauge on my 94 Limited hasn't worked (properly*) for probably 7 or 8 years. Every time I get to 300 miles on a tank I'd refill.
      Well I finally got around to the task of cutting a hole in the floor, pulling out the old sending unit, removing the original pump and placing it on a new sending unit with a new strainer, and placing that back in the tank. And replaced the fuel filter.
      Turn it on and still no reading at the gauge... fffffuuuuuuuuuuuu-!!!
      What do I check next?

      *I mentioned it hasn't worked properly for 7 or 8 years. What I mean by that is the gauge would often show an initial full reading when I turned the Explorer on. But over the course of a couple miles the gauge would slowly but surely drop to empty and remain there for the duration.
      This morning when I turned it on after replacing the sending unit it just stayed dead on the empty side. I threw my hands in the air and came in to take a multi-hour/beer long break.

      Please advise and thanks in advance!
       
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    3. Punjab

      Punjab Member

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      City, State:
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      Year and Model:
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      So I started looking over the old sending unit that I removed and sure enough the brass float has a hole in it. A fair sized one right where it connects to the wire hanger.

      This made me question the sending unit I just put in. So I popped the lock ring back off and shined a flash light in there. I've currently got a full tank of gas and the float is clear up at the top of it, floating.
      Turned the key and still reads empty. Although the gauge did move around a little again. When I turned it on it was already above empty and it dropped down and then slightly lifted again.
      In conclusion, I don't think my sending unit is bad and I don't think my gauge is necessarily bad.
      The truck runs great and doesn't cut out or experience a loss in fuel at all.

      Anyone have any ideas?
       
    4. Turdle

      Turdle Step-buddy Staff Member Moderator Elite Explorer

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      Year and Model:
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