Infiniti G35 (V35). Manual - part 511

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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CAUTION:

●

Quick connector can be disconnected when the tabs
are completely depressed. Do not twist it more than
necessary.

●

Do not use any tools to disconnected quick connector.

●

Keep resin tube 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.

●

Do not bend or twist resin tube during installation and
disconnection. 

●

Do not remove the remaining retainer on hard tube (or
the equivalent) 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
damage and foreign materials, cover them completely
with plastic bags or something similar.      

8.

Remove main fuel level sensor unit, fuel filter and fuel pump assembly, and sub fuel level sensor unit as
follows:

CAUTION:

●

Do not bend float arm during removal.

●

Avoid impacts such as falling when handling components.

a.

Removal of main fuel level sensor unit, fuel filter and fuel pump assembly:

i.

Remove retainer.

ii.

Raise main fuel level sensor unit, fuel filter and fuel pump
assembly, and using snap ring pliers, remove fuel hose connec-
tor. 

CAUTION:

Be careful not to damage fuel hose connector by expanding
them excessively.

b.

Removal of sub fuel level sensor unit:

i.

Remove retainer.

ii.

Raise and release sub fuel level sensor unit to remove.

INSTALLATION

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

Retainer color: White

SBIA0504E

PBIC0163E

PBIC1578E

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

Main and Sub Fuel Level Sensor Unit

●

When installing fuel hose connector insert them fully until a click
sound of full stopper engagement is heard.

●

Face main and sub fuel level sensor units as shown in the fig-
ure, and install them with the knock pin on back aligned with pin
hole on fuel tank.

●

Install retainer so that its notch becomes parallel with the notch
on fuel tank.

●

Tighten retainer mounting bolts evenly.

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, make sure that the connection is secure by following method.

●

Pull the tube and the connector to make sure they are
securely connected.

●

Visually confirm that the two retainer tabs are connected to
the connector.

PBIC1579E

PBIC1065E

PBIC1066E

PBIC1653E

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

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INSPECTION AFTER INSTALLATION

Use the following procedure to check for fuel leaks.

1.

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

2.

Start engine and let it idle and make sure there are no fuel leaks at the fuel system connections.

Components

NBS0012Z

Disassembly and Assembly

NBS00130

CAUTION:

Sub fuel level sensor unit cannot be disassembled and should be replaced as a unit.

DISASSEMBLY

Remove fuel level sensor unit as follows.

1.

Disconnect harness connector.

●

Hold connector by fingers and pull it out, because there is no
stopper release tab.

2.

Using suitable tool, pull up tabs points as shown in the figure
(two points) to release the lock.

CAUTION:

Be careful not to damage it.

1.

Fuel level sensor unit 

2.

Fuel filter and fuel pump assembly

PBIC1081E

PBIC1078E

PBIC1654E

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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY

3.

After fixing tabs are disengaged, slide fuel level sensor unit out
in direction shown by the arrow.

CAUTION:

Do not disassemble fuel filter and fuel pump assembly.

ASSEMBLY

1.

Check for damage of fuel level sensor unit installation position on the side of fuel filter and fuel pump
assembly.

2.

Slide fuel level sensor unit until it aligns to installation groove, then insert it until stop.

●

After inserting, apply force in reverse direction (removal direction) to ensure it cannot be pulled out.

3.

Connect harness connector.

●

Securely insert harness connector until it stops.

PBIC1080E