Fuel pump noise

[anupbansal13]

Hello all i recently swapped out my old rusty fuel tank for a new GSF one. After installing i noticed the fuel pump making a sort of buzzing sound. After a quick search most results showed this means its not got much life left however before i swapped over the tanks it was fine and there was no buzzing sound. The car still runs fine so i dont think its anything to do with fitting so im just putting this down to coincidence. Is there anything i should check on the pump itself or should i just get a new one put in? Any experience of how long these last once they are in this state? Car is a 88 325i sport.

Thanks

[maxfield]

You haven't kinked any pipes or anything fitting the new tank?

[anupbansal13]

Not that i know of...checked all the connections and they are all straight and connect up without over pulling or stretching the pipes

[Brianmoooore]

Check that the bottom of the pump isn't touching the bottom of the tank or the built in swirl pot in the bottom of the tank.