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Old 08-23-2014, 02:33 PM   #7
Cluster King
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Join Date: Nov 2012
Location: Junction City, OR
Posts: 4,806
Re: 67-72 Chevy Truck fuel gauge diagnostics 101

Finally, with no power to the gauge from the ignition switch. The gauge will retain its memory from the last position it had with power. You may notice in your truck that the gauge will creep toward empty if you shut off the ignition for any length of time and come back to normal as soon as it gets 12V.
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