have a 2003 alero it was running good parked it for a few days now it wont start you cant hear the fuel pump run when you turn on yhe key could this be the pump itself or the passlock please help any info would be helpful thank you

I have a 2004 with 160,000 miles, all of a sudden it was bucking and then just quit. Fuel pump bad, not cheap, in the tank,3 to 5 hundred dollars to repair. By the way, it took out a relay when it went bad