1999 - 2006 (GMT800) Section for all discussion related to the 1999-2006 Chevrolet and GMC trucks.

2005 Fuel level inaccuracy

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Old Jul 12, 2025 | 11:17 AM
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Default 2005 Fuel level inaccuracy

I have a 2005 Chevy Silverado 2500 that is having an accuracy problem with the fuel level. Even though this truck has a 34 gallon tank, I can only get 20 gallons of gas in from empty to full. I recently replaced the whole fuel pump assembly w/ float, and the issue continues. It is currently simulating a 20 gallon gas tank. Could it be a faulty module? TIA
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