Gas Gauge Stuck

LanceB
LanceB Senior Contributor
edited November -1 in HUDSON
Any quick checks that I can do to find out why my gas gauge it stuck at just above 3/4 full. Ran out of gas the other day :(



I have converted from 6V pos ground to 12V neg ground. Do I need to reverse the wires on the sending unit?



Thanks

Comments

  • junkcarfann
    junkcarfann Expert Adviser
    The gas gauge has three basic components...the sending unit, the wire that connects the sending unit to the gauge, and the gauge.



    A quick check:



    Take the wire off the sending unit...the gauge should go to below empty. Next, ground the wire to a good proven ground...the gauge should go to above full. If it does those things, the gauge and the wire are working properly, and the sending unit is the culprit. (It is the most likely culprit).
  • Unknown
    Unknown
    Just ground the sending unit wire for a moment to see if gauge goes to full. Leave it grounded too long it will damage the gauge. Been there dont that.
  • Unknown
    Unknown
    Sounds Like Your Float On End Of Ga, May Be Hanging Up On One Of The Baffles In The Tank. Pull Ga And Cround Mount Plate And Raise And Lower Float With Key On And Someone Watching Dash Ga. If It Works Out Of The Tank, Should Weork In Tank, May Need To Bend Arm Sideways A Quarter Of An Inch To Clear Upright Baffle, Bill Albright
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