Thread: Gas gauge blues
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Old 04-25-2013, 09:06 AM   #7
luvbowties
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Smile Re: Gas gauge blues

Quote:
Originally Posted by 72 5500 View Post
Sending unit is grounded. Tested the sending unit with ohms meter and works properly. The wires on the back of the gauge are correct. I used a brand new wiring harness from Classic truck parts. By the way, the truck is a 61
Did you test gauge-movement, with sending unit removed from tank, and moving float, by hand, through its extreme positions? This should be done with a wire run directly from send-unit to gauge--not using the 'factory' wire. Also, the 'power-input-terminal' should be from 'fuel-gauge' terminal at fusebox. *Check this terminal, with switch "ON", to ensure voltage is present and getting to gauge.* The "TANK" terminal should NOT be grounded directly, but only through the sending unit.
Sam

Last edited by luvbowties; 04-25-2013 at 09:14 AM. Reason: add info
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