We have an 05 Cobalt. Wife drove home from work and parked it.I went out later to move it.It wouldn't start.Had her turn the key on while I listened for the fuel pump. I heard the pump run for about 2 seconds.Had her shut it off and then turn it on again.Fuel pump was never to be heard from again.Checked the fuse, replaced the relay & filter.Still nothing.Bought a used fuel pump with 13,000 miles on it. (car has 95,000 ). Put the pump in and it is the same thing. It doesn't run.I checked for current at where the fuel pump plugs in at.It is getting current. When I checked for current the test light didn't seem to be very bright. Don't know if there is anyhting I am missing. Thanks.