Nissan Murano. Manual - part 766

FL-4

< PERIODIC MAINTENANCE >

FUEL SYSTEM

PERIODIC MAINTENANCE

FUEL SYSTEM

Inspection

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Inspect fuel lines, fuel filler cap, and fuel tank for improper attach-
ment, leakage, cracks, damage, loose connections, chafing or dete-
rioration.

If necessary, repair or replace damaged parts.

Quick Connector

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CAUTION:

• After connecting fuel tube quick connectors, check quick con-

nectors are secure.

• Ensure that connector and resin tube never contact any adja-

cent parts.

A

: Engine

B

: Fuel line

C

:  Fuel  tank

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1

: Quick connector

2

:  Retainer

A

: Hard tube (or the equivalent)

B

: Connection (cross-section)

C

: Resin tube

D

: To under floor fuel line

E

: To fuel tank

F

:  Tab

G

: Disconnection

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

FL-5

< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

Exploded View

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REMOVAL

DISASSEMBLY

1.

Retainer

2.

Sub fuel level sensor unit

3.

Seal packing

4.

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

A.

Right side

B.

Left side

: Vehicle front

: Always replace after every disassembly.

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< REMOVAL AND INSTALLATION >

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

Removal and Installation

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WARNING:

Read “General Precautions” when working on the fuel system. Refer to 

FL-2, "General Precautions"

.

REMOVAL

1.

Check fuel level on a level ground. If the fuel level is 7/8 of the fuel tank (full or nearly full), draw appropri-
ate amount of fuel from the fuel tank.

• In the event of malfunction in fuel pump, insert a hose measuring 25mm (0.98 in) in diameter into the

filler opening to draw approximately 20 liters (5-1/4 US gal,4-3/8 Imp gal) fuel.

2.

Release the fuel pressure from the fuel lines. Refer to 

EC-532, "Inspection"

.

3.

Open fuel filler lid.

4.

Open filler cap and release the pressure inside fuel tank.

5.

Remove rear seat cushion and reclining device assembly. Refer to 

SE-107, "Exploded View"

.

6.

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

1.

Sub fuel level sensor unit

2.

Sub fuel level sensor unit base

3.

Fuel filter and fuel pump assembly

4.

Fuel level sensor unit

: Vehicle front

PBIC4901J

Guideline:

Draw approximately 20 liters (5-1/4 US gal) from a full-tank condition.

Left side

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

Right side

: Sub fuel level sensor unit

SBIA0479E

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

FL-7

< REMOVAL AND INSTALLATION >

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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:

• 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. 

PBIC1807E

A

:  Pull

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B

: Connection (cross-section)

D

: To under floor fuel line

E

: To fuel tank

G

: Disconnection

Retainer color: Green

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