Infiniti QX56 (JA60). Manual - part 546

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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REMOVAL AND INSTALLATION

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

Removal and Installation

INFOID:0000000005149534

REMOVAL

WARNING:

Follow the “General Precautions” before working on the fuel system. Refer to 

FL-4, "General Precau-

tion"

 .

1. Remove the fuel filler cap to release the pressure from inside the fuel tank.
2. Release the fuel pressure from the fuel lines. Refer to 

EC-489, "Fuel Pressure Check"

 .

3. Disconnect the battery negative terminal Refer to 

PG-74, "Removal and Installation"

 .

4. Remove the second row seat and the third row LH seat. Refer to 

SE-56, "Removal and Installation"

 (sec-

ond row), 

SE-59, "LH Side Seat"

  (third row).

5. Remove the second and third row rear seat belt buckles mounted on the floor. Refer to 

SB-7, "Removal

and Installation of Second Row Seat Belt"

, 

SB-8, "Removal and Installation of Third Row Seat Belt"

.

6. Remove the LH center pillar trim, the LH rear trim panel, and the LH rear side door kick plate and weather

stripping. Refer to 

INT-14, "Removal and Installation"

 . 

7. Remove the second row rear center console and base, (if equipped). Refer to 

IP-21, "Removal and Instal-

lation"

 .

8. Reposition the floor carpet out of the way to access the inspection hole cover, located under the center LH

rear seat.

1.

Inspection hole cover

2.

Inspection hole cover O-ring

3.

Lock ring

4.

Fuel level sensor, fuel filter, and fuel 
pump assembly

5.

Fuel tank

6.

Fuel level sensor, fuel filter, and fuel 
pump assembly O-ring

LBIA0381E

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< REMOVAL AND INSTALLATION >

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

9. Remove the inspection hole cover by turning the retainers 90

°

degrees clockwise.

• Remove the O-ring.

10. Disconnect the fuel level sensor, fuel filter, and fuel pump

assembly electrical connector, the EVAP hose, and the fuel feed

hose.

Disconnect the quick connector as follows:

• Hold the sides of the connector, push in tabs and pull out the

tube.

• If the connector and the tube are stuck together, push and pull

several times until they start to move. Then disconnect them

by pulling.

CAUTION:

LBIA0382E

LBIA0383E

SFE562A

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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• The quick connector can be disconnected when the tabs

are completely depressed. Do not twist the quick connec-

tor more than necessary.

• Do not use any tools to disconnect the quick connector.

• Keep the resin tube away from heat. Be especially careful

when welding near the tube.

• Prevent any acid liquids such as battery electrolyte, from

getting on the resin tube.

• Do not bend or twist the resin tube during connection. 

• Do not remove the remaining retainer on the hard tube (or

the equivalent) except when the resin tube or the retainer

is replaced.

• When the resin tube or hard tube, or the equivalent, is 

replaced, also replace the retainer with a new one (white

colored retainer).

• To keep the quick connector clean and to avoid damage

and contamination from foreign materials, cover the quick

connector with plastic bags or suitable material as shown.      

11. Remove the lock ring using Tool.

12. Remove the fuel level sensor, fuel filter, and fuel pump assem-

bly. Remove and discard the fuel level sensor, fuel filter, and fuel

pump assembly O-ring.

CAUTION:

• Do not bend the float arm during removal.

• Avoid impacts such as dropping when handling the com-

ponents.

INSTALLATION

Installation is in the reverse order of removal.

• For installation, use a new fuel level sensor, fuel filter, and fuel pump assembly O-ring.

• Connect the quick connector as follows:

- Check the connection for any damage or foreign materials.

- Align the connector with the pipe, then insert the connector straight into the pipe until a click is heard.

PBIC1268E

PBIC0163E

Tool number

:  — (J-46536)

LBIA0389E

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

- After connecting the quick connector, make sure that the connec-

tion is secure by checking as follows:

- Pull the tube and the connector to make sure they are securely

connected.

- Visually inspect the connector to make sure the two retainer tabs

are securely connected.

INSPECTION AFTER INSTALLATION

1. Turn the ignition switch ON but do not start engine, then check the fuel pipes and hose connections for

leaks while applying fuel pressure to the system.

2. Start the engine and rev it above idle speed, then check that there are no fuel leaks at any of the fuel pipe

and hose connections.

PBIC1653E