Re: 67-72 Chevy Truck fuel gauge diagnostics 101
More often than not the cause of a 1/4 tank reading is a bad resistor on the back of the gauge. I would try the sender sweep first and if it checks out then look at a new resistor.
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VetteVet
metallic green 67 stepside
74 corvette convertible
1965 Harley sportster
1995 Harley wide glide
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