what makes a 5ek e model fuel pump go bad. i am having a issue with this one, and i think it might be the pump. is there ever a instance where sometimes it works and sometimes it dont kinda thing. i have already replace the check valve, ran great and started better than ever. sat for about a week or two went out and started it this morning, left the house, got about 10 miles down the road, hooked up my wagon. then settin there idling for about 5 minutes and started spuddering like it was running out of fuel, then died. eitherd it, started,idled like ***** for a few minutes, went about a mile down the road same thing again.done the same thing to get it goin, headed back home. dies again. bypassed the lines from the tank to the filters, changed the filters also, ran good for about 10 miles to the house, parked it.thought maybe it was the lines.went inside. came out 2 hours later, fired right up for about 5 or 10 seconds, then dies..wont start unless i either the **** out if it , which i dont like doing. anways, just wonderd if the pump will act up a few times then go bad, or will it just die.anyone had any similar experiance?