It keeps blowing the 10 amp fuse to the fuel pump, what could it be? on 1992 Nissan Pickup (D21)

I CAN REPLACE THE FUSE IT WILL START, AFTER 5 SECONDS IT BLOWS AGAIN. IS IT THE FUEL PUMP OR THE RELAY GOING BAD?

Asked by for the 1992 Nissan Pickup (D21)
3 answers
Possible pump problem but most likely shorting wire(s) in harness to the pump! Check where wires come off frame and go to the pump as that is the most exposed part of the harness. Gauge working ok?
you have a short poss pinched wiring
maybe old fuel pump .also check wiring coming from fuel pump