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  1. #1
    Join Date
    Jun 2002
    Location
    La Grange Park, IL
    Posts
    44

    Default Troubleshooting Fuel Gauge

    I checked some of the other threads without any luck. Fuel gauge is dead. Is there a way to see if it is the gauge or something at the other end?

    Thanks in advance.
    Fins to the left.

    2002 Outback LS

  2. #2
    Join Date
    Oct 2013
    Location
    Ft. Collins, CO
    Posts
    174

    Default

    Here's a nice troubleshooting guide: http://www.jamestowndistributors.com...t.do?docId=833

    Basically, you can measure the resistance of the sender (gauge disconnected) or momentarily short the input the gauge to ground which should show up as Full.

    Unless power or ground connection to gauge has failed, it's most likely the sender (in the tank). Senders fail frequently, gauges fail rarely.
    2007 Mobius LSV
    1989 Sanger Skier DX - sold

  3. #3
    Join Date
    Jun 2002
    Location
    La Grange Park, IL
    Posts
    44

    Default

    Quote Originally Posted by gregski View Post
    Here's a nice troubleshooting guide: http://www.jamestowndistributors.com...t.do?docId=833

    Basically, you can measure the resistance of the sender (gauge disconnected) or momentarily short the input the gauge to ground which should show up as Full.

    Unless power or ground connection to gauge has failed, it's most likely the sender (in the tank). Senders fail frequently, gauges fail rarely.
    Thanks for the help.
    Fins to the left.

    2002 Outback LS

  4. #4
    Join Date
    Jan 2011
    Location
    Western PA
    Posts
    49

    Default

    Also if you need to re-order the sending unit, make sure you measure the tank depth. When I did, the old unit always said that it was empty when it was 1/2 a tank. Then new unit is very accurate. They didn't increase the length of the rod, they shortened the float so it takes longer to move.
    2004 Supra 22 Launch SSV
    325 Indmar Assault 320 HP
    "One more hour"

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