Infiniti QX56 (JA60). Manual - part 545

PRECAUTIONS

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5. When the repair work is completed, return the ignition switch to the 

″LOCK″ position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

6. Perform a self-diagnosis check of all control units using CONSULT-III. 

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FUEL SYSTEM

FUEL SYSTEM

General Precaution

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WARNING:

When replacing fuel line parts, be sure to observe the following.

• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO

2

  fire extinguisher. 

• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

CAUTION:

• Before removing fuel line parts, carry out the following procedures:

- Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in

safe area.

- Release fuel pressure from the fuel lines. Refer to 

EC-489, "Fuel Pressure Check"

 .

- Disconnect the battery negative terminal. 

• Always replace O-rings and clamps with new ones.

• Do not kink or twist hoses when they are being installed.

• After connecting the fuel tube quick connectors, make sure

the quick connectors are secure.

Ensure that the connector and resin tube do not contact any

adjacent parts.

• After installing tubes, make sure there is no fuel leakage at

connections in the following steps.

- Apply fuel pressure to fuel lines with turning ignition switch

ON (with engine stopped). Then check for fuel leaks at con-

nections.

- Start the engine and rev it up and check for fuel leaks at con-

nections.

• Use only a Genuine NISSAN fuel filler cap as a replacement. If

an incorrect fuel filler cap is used, the MIL may come on. 

• For servicing “Evaporative Emission System” parts, refer to

EC-493, "Removal and Installation"

 . 

• For servicing “On Board Refueling Vapor Recovery (ORVR)”

parts, refer to 

EC-491, "How to Detect Fuel Vapor Leakage"

 .

PBIC1268E

PREPARATION

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PREPARATION

PREPARATION

Special Service Tool

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The actual shapes of the Kent-Moore tools may differ from those of the special tools illustrated here.

Commercial Service Tool

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Tool number
(Kent-Moore No.)
Tool name

Description

—

(J-46536)
Fuel tank lock ring tool

Removing and installing fuel tank lock ring

LBIA0398E

Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

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FUEL SYSTEM

BASIC INSPECTION

FUEL SYSTEM

Checking Fuel Line

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Inspect fuel lines, fuel filler cap and fuel tank for improper attach-

ment, leaks, cracks, damage, loose connections, chafing or deterio-

ration.

If necessary, repair or replace damaged parts.

SMA803A