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Fuel Gauge Does Not Work


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While testing the yellow and black wires that attach to the fuel tank sending unit I attched a volt meter to the black and yellow wires and turned on the ignition. The volt meter initially went to 12 volts and then started pulsing as if the fuel gauge wiring were attached to a turn signal. The voltage would drop to zero and then pulse to 12 volts. The fuel gauge has never worked so I am pulling the fuel tank to seal the various unused tubes and replace the fuel level sending unit. The pulsing voltage at the yellow and black wires is an unexpected find. Anyone seen this before?

 

Thanks

 

Miles

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