The fuel pump on a Volvo delivers the fuel from the gas tank and sends it to the engine. Should the fuel pump fail, then the engine won't get the fuel it needs to run and the Volvo isn't going to drive anywhere. To fix the problem, you have to replace the fuel pump so that the engine functions properly. This takes at least an hour to do, and it doesn't require any specials tools.
Open the gas door and remove the gas cap. Open up the trunk on the Volvo. Remove the trim panels on the side of the trunk with the fuel filler neck using the trim panel removal tool. Unplug the fuel pump wiring on the right side wheel well using your hands. Unplug the quick-disconnect hoses on the fuel pump with your hands.
Lift the rear of the Volvo with the jack and put it on jack stands. Disconnect the fuel filler neck from the gas tank with the 3/8-inch ratchet and socket. Put the jack under the tank with a wood block between the jack head and the tank. Unbolt the gas tank from the body with the 3/8-inch ratchet and socket, then lower the jack down so the gas tank is on the ground.
Remove the lock ring on the gas tank holding the fuel pump and sending unit to the tank with the brass drift and the brass hammer. Pull the fuel pump out of the sending unit and the gas tank with your hands.
Install the replacement fuel pump into the sending unit and the tank. Reinstall the lock ring on the tank with the brass drift and brass hammer. Lift the gas tank back up into the chassis and bolt it in place with the 3/8-inch ratchet and socket. Reinstall the fuel lines and electrical connections to the fuel pump with your hands. Reinstall the fuel filler neck to the gas tank with the 3/8-inch ratchet and socket.
Reinstall the trunk trim panels with your hands. Lower the Volvo off the jack stands using the jack.
