Your fuel pump is located there and it could be the bearings on the pump or it could be getting air in the fuel is a lubricant for the bearings and when there is no fuel it is possible you could hear the bearings - my guess your fuel pump is packin up but do check for air leaks
volkswagen
Hard starting and stalling. When in doubt, replace the filter.
check your main relay, that is a problem in those years after a while..
Noisy pump, hard starting, stalling.
Noisy pump, hard starting, stalling.
Hard starting, stalling, and eventually it will burn your fuel pump out.
Start with replacing the fuel filter.
Noisy pump, hard starting, stalling.
Hard starting, stalling, and eventually a no run condition. Be sure and replace the fuel filter.
why does my cutless ciera stall when running and starts back up
Could be a variety of causes Cam angle sensor to thermostat
Hard starting, stalling, noisy pump, and finally total failure.