fuel gauges erratic readings

Discussion in '1980 - 1986 Ford F150, F250 and F350 Truck Forum' started by sim559, Aug 8, 2019.

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  1. sim559

    Is there a Voyage regulator for the dash gauges? If so where is it? after starting the front tank may read empty . If I switch to rear tank It will show it has fuel in it now almost full and I am sure it is almost full. The if I switch back to the front tank It may read half full or read full. The tank should be almost full now as I added more to day. I did install new tank senders about a year ago. They worked ok for awhile but then started to act up. Should I just put some new ones in?
     
    sim559, Aug 8, 2019
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  2. FTZ HAIC Staff Member Oregon Chapter Founding Member

    No regulator, but a "damper" to slow needle movement so you don't get quick swings from fuel sloshing in a tank. Sounds like a harness/ground issue, sending unit will usually be a empty or full reading all the time. If you unplug the sender the gauge should go to full - it doesn't then its the wiring that has a fault.
     
    FTZ HAIC, Aug 10, 2019
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