98 3.1 fuel pump longivity=??

i,m guessing 200,000 miles to be average.

Went 230k on my old 98 sold it, who knows?

232k on mine. It was weak so I replaced it before it failed.

Kinda depends on how often the fuel tank is run to "empty"; and whether the fuel you put in the tank is contaminated with rust or dirt particles.

Pump on my '93 failed at about 140K; and I replaced the pump on my '92 at about 120K "just because" I didn't want to be stranded on an upcoming long trip.

232k on mine. It was weak so I replaced it before it failed.

weak?
what were the symptoms.

As stated, what usually determines the life of a fuel pump is:

keeping it cool by keeping it covered with fuel(don't let it go below 1/4 tank)

regularly replacing the fuel filter(2yr,24K), so the pump doesn't overwork against a plugged filter...

keeping contaminants out of the fuel tank.....

Have seen low mileage cars need fuel pumps...there is no set mileage for failure......