1999 Acura RL fuel

1999 Acura RL 6 cyl Automatic 122000 miles

My car would not turn over and my mechanic performed a check under the hood to see if fuel was pumping out. He deterimined the fuel pump needed to be replaced. The car ran for a couple of days and started to do the same thing; would not turn over. I sat for about 10min, then turned the switch on and off three times, mashed the gas and turned the switch on and off three more times. It finally cranked. Could this be and electrical problem.