How long should a fuel pump last? I put a new one in about six years ago when the jeep started cutting out on me at inopportune times. I have had no problems since then. Today it stopped on me twice. I had to let it sit about 10 minutes and then it would crank up. It would spit and sputter some and I hand to keep the RPMs high to keep it running. Very similar to what it was doing six years ago when I installed the new pump.