Infiniti QX56 (Z62). Manual - part 734

FUEL TANK

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< REMOVAL AND INSTALLATION >

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3.

Remove LH rear wheel and tire.

4.

Disconnect fuel filler hose, vent hose and EVAP hose at fuel tank side.

5.

Remove fuel tank protector.

6.

Remove the fuel tank mounting band bolts while supporting the
fuel tank with a suitable lift jack.

CAUTION:

Support the position that fuel tank mounting bands never
engage.

7.

Supporting with hands, descend suitable jack carefully, and remove fuel tank.

CAUTION:

• Check that all connection points have been disconnected.
• Confirm there is no interference with vehicle.

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), and check connections for leakage by applying fuel pres-
sure to fuel piping.

2.

Start engine and rev it up and check there are no fuel leakage at the fuel system tube and hose connec-
tions.

• After removing/installing rear suspension assembly, check to adjust wheel alignment.  Refer to 

RSU-6,

"Inspection"

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< REMOVAL AND INSTALLATION >

EVAP CANISTER

EVAP CANISTER

Exploded View

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Hydraulic Layout

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EVAPORATIVE EMISSION LINE DRAWING

1.

EVAP control system pressure sen-
sor

2.

O-ring

3.

EVAP canister

4.

O-ring

5.

EVAP canister vent control valve

6.

EVAP canister vent control valve 
cover

Refer to 

GI-4, "Components"

 for symbols not described on the above.

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EVAP CANISTER

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< REMOVAL AND INSTALLATION >

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NOTE:
Do not use soapy water or any type of solvent while installing vacuum hose or purge hoses.

1.

EVAP canister purge volume control 
solenoid valve

2.

EVAP purge resonator

3.

EVAP service port

4.

EVAP canister

5.

EVAP control system pressure sen-
sor

6.

EVAP canister vent control valve

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< REMOVAL AND INSTALLATION >

EVAP CANISTER

Removal and Installation

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REMOVAL

1.

Remove the spare tire.

2.

Disconnect harness connectors and hoses.

3.

Remove EVAP canister fixing bolt.

4.

Remove EVAP canister.

NOTE:
The EVAP canister vent control valve and EVAP control system pressure sensor can be removed without
removing the EVAP canister.

INSTALLATION

Install in the reverse order of removal.
NOTE:
Tighten EVAP canister fixing bolt to the specified torque.

Disassembly and Assembly

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DISASSEMBLY

1.

Disengage the pawl and turn EVAP canister vent control valve
counterclockwise.
• Lock (A)
• Unlock  (B)

2.

Remove the EVAP canister vent control valve.

ASSEMBLY

Assemble in the reverse order of disassembly.

CAUTION:

Always replace O-ring with a new one.

Inspection

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Check EVAP canister as per the following:

1.

Block port (B).

2.

Blow air into port (A) and check that it flows freely out of port (C).

3.

Release blocked port (B).

4.

Apply vacuum pressure to port (B) and check that vacuum pres-
sure exists at the ports (A) and (C). 

5.

Block port (A) and (B).

6.

Apply pressure to port (C) and check that there is no leakage.

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