Repair 7

How to Repair a Fuel Pump on a 1992 Nissan Truck

The Nissan D21 was a series of pickup trucks manufactured in the United States from 1986 to 1997. The 1992 models use fuel injection, which requires an electric fuel pump to pressurize the fuel system. The fuel pump in the 1992 Nissan truck is installed within the fuel tank, so you must lower the fuel tank to access the fuel pump. The fuel pump in these vehicles is generally not serviceable, so a fuel pump repair consists of replacing the faulty fuel pump.

Instructions

1

Remove the fuse for the fuel pump in the fuse box located under the dashboard on the drivers side. Start the engine and allow it to run until it stalls. Crank the engine for five seconds to ensure the fuel system is empty. Replace the fuse for the fuel pump.

2

Disconnect the cable from the batterys negative terminal with a socket wrench. This will ensure that you cant start the engine accidentally while repairing the fuel pump. Raise and support the vehicle on jack stands. Detach the electrical connector for the fuel pump assembly. Place a hose into the fuel tank and siphon the fuel into container approved for gasoline.

3

Detach the filler tube from the fuel tank with a socket wrench. Detach the fuel lines from the fuel tank including the fuel outlet hose, fuel return hose and ventilation hose. Detach the electrical connector for the fuel gauge unit. Support the fuel tank with a jack and remove the mounting bolts for the fuel tank. Disconnect the fuel tank from the vehicle and lower it to the ground with the jack.

4

Disconnect the retaining bolts for the ring on the fuel pump with a socket wrench. Discard the O-ring for the fuel pump and pull the fuel pump out of the fuel tank. Cover the hole in the fuel tank with a shop towel to prevent contamination of the fuel tank.

5

Install a new fuel pump and O-ring by reversing steps two through four. Start the engine and check for fuel leaks.