You can get to the fuel pump by removing the rear seat and you will see a bolted down access panel for the fuel pump.
2000 sonata rear seat removal
The rear seat on a 2002 Hyundai has bolt behind the seats. Push the seat down to reveal the bolts, and loosen them. The seat will be able to be removed from the vehicle.
To remove the 2002 Hyundai accent rear seats find the tabs that cover the bolts and unbolt them. After the bolts are out lift the seat to remove it from the car.
for Hyundai accent gsi (yr 2000) needed: 12mm short socket ratchet remove spare tire cover. Fold down rear seats. Remove the bolt holding each seat separately onto hinge. remove these two pieces. Remove the two bolts from each side from the rear of bottom seat section. From the front of the rear seat there are two buttons-levers-mini handles.. push those towards the rear of the car and pull up on seat cushion.
you need to remove the rear seat
under the rear seat, round black cap in fuel tank, pump is inserted into fuel tank.
Under the back seat
under the passenger seat
It is located under the rear seat. To access you must first remove the cover.
The fuel pump is located in the gas tank to get to it you got to remove the rear seat.
The rear seat is not designed to be removed. You can remove the center seat and slide the rear seat forward.