Fuel Pump

REMOVAL & INSTALLATION

3000GT

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Relieve fuel system pressure. Remove the fuel filler cap.
3. Remove or disconnect the following:
   • Negative battery cable
   • Fuel gauge cover located in the rear floor pan
   • Fuel pump and gauge electrical connector
   • Overfill limiter (2-way valve)
   • Both sides of the high pressure fuel hose
   • Fuel pump and gauge assembly from the tank

   To install:

4. Align the 3 projections on the packing with the holes on the fuel pump and the nipples on the pump facing the same direction as before removal.

   Fig. 1: Align the positioning projections — 3000GT 3.0L engine

5. Temporarily tighten the flare nut on the high pressure hose by hand. Making sure the hose does not twist, tighten body side nut to 22 ft. lbs. (30 Nm) and the fuel pump side nut to 25 ft. lbs. (35 Nm).
6. Install or connect the following:
   • Overfill limiter (2-way valve) with the long shouldered side of the valve facing the canister
   • Electrical connector to the pump assembly
   • Negative battery cable and check the entire system for leaks
   • Sealer to the rear floor pan and install the cover into place

Diamante

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Disconnect the negative battery cable.
4. Raise the vehicle and support it safely.
5. Remove the left rear wheel well liner, if equipped.

   Fig. 2: Proper method of supporting rear exhaust system — Diamante 3.0L engine

6. Disconnect the center exhaust system from the main muffler. Disconnect the rear exhaust hangers, lower the exhaust and secure aside.
7. Remove the tank drain plug and drain the fuel into an approved container.
8. On models equipped with 4WS, remove the mounting bolts and lower the rear steering gear.

   Fig. 3: Power cylinder identification — Diamante 3.0L engine

9. Remove or disconnect the following:
   • Fuel return hose, high pressure hose and vent hose from the sending unit
   • Electrical connector
   • Filler and vent hoses. Place a support under the tank and remove the retaining nuts.
10. Lower the tank from the vehicle.
11. Remove the fuel pump retaining nuts and remove the assembly from the tank.

    To install:

12. Install or connect the following:
    • Pump assembly to the tank and tighten the retaining nuts to 24 inch lbs. (3 Nm)
    • Fuel tank and connect the filler and vent hoses. Tighten the tank retaining nuts and bolts to 19 ft. lbs. (26 Nm).
    • Return hose, high pressure hose and all other hoses and connectors connected to the pump/sending unit
    • Power cylinder unit and tighten the mounting bolts to 31 ft. lbs. (43 Nm), if equipped with 4WS
    • Exhaust pipe and secure the rear hangers
    • Left rear wheel well liner, if removed
13. Lower the vehicle and return fuel to the gas tank.
14. Connect the negative battery cable and check the entire system for proper operation and leaks.

Eclipse

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Relieve the fuel system pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Rear seat cushion by pulling the seat stopper near the floor and lifting the cushion up
   • Inspection cover on the right side of the vehicle
   • Harness connector and the fuel lines
   • Fuel pump assemble from the tank. Remove the locking ring on the AWD model.

   To install:

4. Install or connect the following:
   • Fuel pump in the tank
   • Hoses and the harness connector
   • Inspection cover
   • Rear seat
   • Negative battery cable

Galant

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Remove or disconnect the following:
   • Negative battery cable
   • Rear seat cushion, by pulling the seat stopper outward and lifting the lower cushion upward
   • Access cover
   • Fuel pump wiring
   • Return hose and the high pressure fuel hose
   • Pump mounting nuts and remove the pump assembly

   To install:

4. Install the fuel pump assembly to the tank and tighten the retaining nuts to 22 inch lbs. (2.5 Nm).

   NOTE: Tilt the float to the left of the vehicle, when installing the pump assembly.

5. Install or connect the following:
   • High pressure hose, return hose and the fuel tank wiring
   • Negative battery cable
6. Check the fuel pump for proper pressure and inspect the entire system for leaks.
7. Apply sealant to the access cover and install the cover.
8. Install the rear seat cushion.

Mirage

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Disconnect the negative battery cable.
4. Raise and safely support the vehicle.
5. Drain the fuel from the fuel tank into an approved container.
6. Disconnect the filler and vent hoses.
7. Support the tank with a transmission jack. Disconnect the retainer straps and lower the tank to gain access to the fitting on top of the tank.
8. Remove or disconnect the following:
   • Return hose, high pressure hose and vapor hoses from the pump/sending unit
   • Electrical connectors at the pump/sending unit
   • Fuel tank from the vehicle
   • Access plate to the fuel tank and remove the pump assembly

   To install:

9. Install fuel pump into fuel tank, with new packing gasket, and tighten mounting nuts.
10. Raise the tank in position under the vehicle.
11. Attach all connections to the top of the tank.
12. Raise the tank completely and position the retainer straps around the fuel tank. Install new fuel tank self-locking nuts and tighten to 22 ft. lbs. (31 Nm).
13. Connect the return hose and high pressure hoses.
14. Install the vapor hose and the filler hose. Install the filler hose retainer screws to the fender, if removed.
15. Lower the vehicle and pour the drained fuel into the gas tank.
16. Connect the negative battery cable. Check the fuel pump for proper pressure and inspect the entire system for leaks.