Nissan Murano Z51. Manual - part 792

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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< REMOVAL AND INSTALLATION >

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6.

Peel off floor carpet, then remove inspection hole cover units by
turning clips clockwise by 90 degrees.

7.

Disconnect harness connector, fuel feed tube and EVAP hose.

Disconnect quick connector as follows:

• Hold the sides of connector, push in tabs (B) and pull out fuel

feed tube.

• If quick connector sticks to tube of main fuel level sensor unit,

push and pull quick connector several times until they start to
move. Then disconnect them by pulling.

CAUTION:

Left side

: Main fuel level sensor unit, fuel filter 
and fuel pump assembly

Right side

: Sub fuel level sensor unit

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:  Pull

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< REMOVAL AND INSTALLATION >

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

• Quick connector (1) can be disconnected when the tabs

(F) are completely depressed. Never twist it more than
necessary.

• Never use any tools to disconnected quick connector.
• Keep resin tube (C) away from heat. Be especially careful

when welding near the resin tube.

• Prevent acid liquid such as battery electrolyte, etc. from

getting on resin tube.

• Never bend or twist resin tube during installation and dis-

connection. 

• Never remove the remaining retainer (2) on hard tube (or

the equivalent) (A) except when resin tube or retainer is
replaced.

• When resin tube or hard tube (or the equivalent) is

replaced, also replace retainer with new one. 

• To keep the connecting portion clean and to avoid dam-

age and foreign materials, cover them completely with
plastic bags (A) or something similar.      

8.

Remove retainer for main fuel level sensor unit, fuel filter and
fuel pump assembly and sub fuel level sensor unit with fuel tank
lock ring wrench (SST) by turning counterclockwise.

9.

Remove main fuel level sensor unit, fuel filter and fuel pump assembly, and sub fuel level sensor unit.

B

: Connection (cross-section)

D

: To under floor fuel line

E

: To fuel tank

G

: Disconnection

Retainer color: Green

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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• Raise main fuel level sensor unit, fuel filter and fuel pump

assembly, and disconnect fuel hose connector (push in tabs
and pull out) and sub fuel level sensor unit harness connector.

• Raise and release sub fuel level sensor unit to remove.

INSTALLATION

Note to the following, and install in the reverse order of removal.

Main and Sub Fuel Level Sensor Unit

1.

Install new seal packing to fuel tank without any twist.

2.

Connect fuel hose connector (push in until it stops) and sub fuel
level sensor unit harness connector.
NOTE:
When installing fuel hose connector insert them fully until a click
sound of full stopper engagement is heard.

3.

Align the direction mark on main fuel level sensor unit, fuel filter
and fuel pump assembly and sub fuel level sensor unit with that
on fuel tank as shown in the figure, and install them to fuel tank.

CAUTION:

• Never allow seal packing to drop.
• Never bend float arm during installing.

4.

Install retainer for main fuel level sensor unit, fuel filter and fuel
pump assembly and sub fuel level sensor unit with fuel tank lock
ring wrench (SST) by turning clockwise.

CAUTION:

Install retainer horizontally.

Quick Connector

Connect quick connector as follows:

1.

Check the connection for damage or any foreign materials.

2.

Align the connector with the tube, then insert the connector straight into the tube until a click sound is
heard.

3.

After connecting, check that the connection is secure by following method.

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< REMOVAL AND INSTALLATION >

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

• Pull (A) the tube and the connector to check they are securely

connected.

• Visually confirm that the two retainer tabs are connected to the

connector.

Disassembly and Assembly

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DISASSEMBLY

Fuel level sensor unit, fuel filter and fuel pump assembly side

1.

Disconnect harness connector.

2.

Remove fuel level sensor unit according to the following procedure.

a.

Push the pawl of fuel level sensor unit (1) mounting area with an
L-shaped iron rod or an equivalent to unlock.

CAUTION:

Be careful not to damage it.

b.

With the fuel level sensor unit unlocked, slide it in the direction
shown by the arrow (

).

Sub fuel level sensor unit assembly side

1.

Remove sub fuel level sensor unit according to the following procedure.

a.

Push the pawl of sub fuel level sensor unit (1) mounting area
with an L-shaped iron rod or an equivalent to unlock.

CAUTION:

Be careful not to damage it.

b.

With the sub fuel level sensor unit unlocked, slide it in the direc-
tion shown by the arrow (

).

ASSEMBLY

Install fuel level sensor unit and sub fuel level sensor unit according to the following procedure.
• Insert fuel level sensor unit and sub fuel level sensor unit all the way to the end until a “click” touch and

sound can be recognized.

• Pull fuel level sensor unit and sub fuel level sensor unit in the removal direction to ensure that they do not

become detached.

Inspection

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INSPECTION AFTER INSTALLATION

Use the following procedure to check for fuel leakage.
1.

Turn ignition switch “ON” (with engine stopped), then check connections for leakage by applying fuel pres-
sure to fuel piping.

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