Noisy Fuel Pump 2006 Model Bus

[Busdriver]

Hi All,

Got a noise coming from my fuel pump. At first I thought it might have been a top end bearing on it's way out but the noise is definately coming from the fuel pump.

Sort of like a whiring sound.

Anyone had noises coming from their fuel pump and possibly throw some light on this.

Fuel pump filters/strainers were cleaned about 8,000 kilometers ago (by someone who knew what they were doing).