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How do you wire a fuel gauge on a 6 volt 1938 dodge deluxe?

When I connect everthing, it shows O, with key off, but with when the key is on it shows full, and there is no gas in it.

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  • Dodge Master
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Check the fuel sending unit with a volt ohm meter for changes in resistance as you actuate the sending unit. If there are not resistance changes, then there is a problem (possibly a short) in the sending unit.

Here is a link to help with testing and hook up: https://www.fillingstation.com/articles/fuelgaugetesting.htm
and: http://www.jalopyjournal.com/forum/threads/issues-with-a-6-volt-fuel-gauge.725195/

Posted on Apr 02, 2015

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