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below the fuel pump there is a diaode with a float attached, what happens is the diaode burns out with repeated usage, pull the tank pay 50.00 to get a new sender to put on the float and taaaa daaaaaaaa your fuel guage will work again

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18y ago
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Q: How do you fix a malfunctioning fuel gauge on a 2002 Buick LeSabre?
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