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

by in Longwood, FL on September 04, 2010
1 answer
ANSWER by , September 04, 2010
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 Roy