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  1. R

    77 Fuel Gauge pegged past full?

    Ok, I just tried to see if any power was coming from the plug on the firewall to that Im referring to as the fuel wiring harness. I tried all of the prongs and non of them are showing any voltage. How come they wouldn't be getting any power? With the plug plugged in the fuel selector tank...
  2. R

    77 Fuel Gauge pegged past full?

    Yes and all the fuses are good.
  3. R

    77 Fuel Gauge pegged past full?

    Excellent suggestion, but that's not it. I checked the pink wire and it is plugged into the fuse panel correctly. (I have another 77 chevy truck to compare it to as well) With the pink wire unplugged the fuel tank selector switch does not work and the fuel gauge is still pegged at full...
  4. R

    77 Fuel Gauge pegged past full?

    I have a 77 chevy k10. Replaced the dual tanks with new sending units. I took the fuel tank wiring harness out of another 77 chevy truck I have. The Fuel Gauge is pegged past full and I cannot figure out why it wont work or go down and read properly? The sending units are new and...

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