fuel pump is noisy (loud buzz) when fuel level is half or below. Fill tank, no buzz on 2000 Chevrolet Express 1500

loud buzz noise from fuel pump when fuel level is 1/2 or below

Asked by for the 2000 Chevrolet Express 1500
1 answer
pump is close to complete failure. as the level goes down and the pump motor emerges from the fuel, the noise level goes up.

Replace the pump