ANY 05 JEEP G.CHEROKEE MECHANICS

Got up this morning & went to the store to get a few things. When i got back & a few minutes later i tried to start it & no go. When its going to start i can tell i can hear the pump for a few seconds. I took the fuel pump relay & fuse out & spray electrical cleaner in where they plug in still no go will not start. Got under neath & smacked the tank with a rubber hammer still no go. Looks like im replacing the pump. Im not good with wiring & checking things.