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To determine if the fuel pump is bad on a 2000 GMC Savana, listen for a humming sound from the fuel tank when you turn the ignition key to the "ON" position (not starting the engine). If you don't hear this sound, it may indicate a malfunctioning pump. Additionally, you can check for fuel pressure at the fuel rail using a pressure gauge; if the pressure is below the specified range, the pump may be faulty. Lastly, if the engine is cranking but not starting, it could also suggest a fuel pump issue.

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3w ago

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