Check your engine oil to be sure you do not have a bad injector that is dumping gas into the engine. If nothing there the next this would be a bad sending unit or someone stealing gas. If it was leaking that amount you should smell it, unless it is in a pressure line and it is spraying the fuel onto the ground while the engine runs.
Try starting it and let it idle and look close for leaks. No leaks = most likely issue then would be a bad sending unit.
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Tuesday, May 9th, 2017 AT 9:24 AM