2004 INFINITI QX56 roof

BODY REPAIR
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Revision: August 20072004 QX56
UNDERCOATING
The underside of the floor and wheelhouse are undercoated to prevent rust, vibration, noise and stone chip-
ping. Therefore, when such a panel is replaced or repaired, apply undercoating to that part. Use an undercoat-
ing which is rust preventive, soundproof, vibration-proof, shock-resistant, adhesive, and durable.
Precautions in undercoating
1. Do not apply undercoating to any place unless specified (such as the areas above the muffler and three
way catalyst which are subjected to heat).
2. Do not undercoat the exhaust pipe or other parts which become hot.
3. Do not undercoat rotating parts.
4. Apply bitumen wax after applying undercoating.
LIIA0129E

EC-640Revision: August 2007
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
2004 QX56
ON BOARD REFUELING VAPOR RECOVERY (ORVR)PFP:00032
System DescriptionUBS00HE2
From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WAR NIN G:
When conducting inspections below, be sure to observe the following:

Put a “CAUTION: INFLAMMABLE” sign in workshop.

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

Be sure to furnish the workshop with a CO2 fire extinguisher.
CAUTION:

Before removing fuel line parts, carry out the following procedures:
–Put drained fuel in an explosion-proof container and put lid on securely.
–Release fuel pressure from fuel line. Refer to EC-46, "FUEL PRESSURE RELEASE" .
–Disconnect battery ground cable.

Always replace O-ring when the fuel gauge retainer is removed.

Do not kink or twist hose and tube when they are installed.

Do not tighten hose and clamps excessively to avoid damaging hoses.

After installation, run engine and check for fuel leaks at connection.

Do not attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.
PBIB1068E

EI-1
EXTERIOR & INTERIOR
I BODY
CONTENTS
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SECTION EI
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Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 3
Service Notice .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
SQUEAK AND RATTLE TROUBLE DIAGNOSIS ...... 5
Work Flow ................................................................ 5
CUSTOMER INTERVIEW ..................................... 5
DUPLICATE THE NOISE AND TEST DRIVE ....... 6
CHECK RELATED SERVICE BULLETINS ........... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 6
REPAIR THE CAUSE ........................................... 6
CONFIRM THE REPAIR ....................................... 7
Generic Squeak and Rattle Troubleshooting ........... 7
INSTRUMENT PANEL .......................................... 7
CENTER CONSOLE ............................................. 7
DOORS ................................................................. 7
TRUNK .................................................................. 8
SUNROOF/HEADLINING ..................................... 8
OVERHEAD CONSOLE (FRONT AND REAR) ..... 8
SEATS ................................................................... 8
UNDERHOOD ....................................................... 8
Diagnostic Worksheet .............................................. 9
CLIP AND FASTENER ..............................................11
Description ..............................................................11
FRONT BUMPER ..................................................... 13
Removal and Installation ........................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 14
REAR BUMPER ....................................................... 15
Removal and Installation ........................................ 15
FRONT GRILLE ........................................................ 17
Removal and Installation ........................................ 17
COWL TOP ............................................................... 18
Removal and Installation ........................................ 18FRONT FENDER ...................................................... 20
Removal and Installation ........................................ 20
OVER FENDER ......................................................... 21
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21
INSTALLATION ................................................... 21
FENDER PROTECTOR ............................................ 23
Removal and Installation ........................................ 23
FRONT ................................................................ 23
LICENSE LAMP FINISHER ...................................... 24
Removal and Installation ........................................ 24
RUNNING BOARDS ................................................. 25
Removal and Installation ........................................ 25
REAR SPOILER ........................................................ 26
Removal and Installation ........................................ 26
ROOF RACK ............................................................. 27
Removal and Installation ........................................ 27
DOOR OUTSIDE MOLDING ..................................... 28
Removal and Installation ........................................ 28
FRONT DOOR OUTSIDE MOLDING .................. 28
SIDE GUARD MOLDING .......................................... 29
Removal and Installation ........................................ 29
REMOVAL ........................................................... 29
INSTALLATION ................................................... 29
DOOR FINISHER ...................................................... 31
Removal and Installation ........................................ 31
FRONT DOOR .................................................... 31
REAR DOOR ....................................................... 32
BODY SIDE TRIM ..................................................... 34
Removal and Installation ........................................ 34
LOWER DASH SIDE FINISHER ......................... 34
CENTER PILLAR LOWER FINISHER ................ 35
CENTER PILLAR UPPER FINISHER ................. 35
FRONT PILLAR FINISHER ................................. 35
KICKING PLATES ............................................... 35
MUDGUARD FINISHERS ................................... 35
DOOR PARTING SEALS .................................... 35
FLOOR TRIM ............................................................ 36
Removal and Installation ........................................ 36

EI-8
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the NISSAN Squeak and Rattle Kit (J-43980) to repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sun visor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
OVERHEAD CONSOLE (FRONT AND REAR)
Overhead console noises are often caused by the console panel clips not being engaged correctly. Most of
these incidents are repaired by pushing up on the console at the clip locations until the clips engage.
In addition look for:
1. Loose harness or harness connectors.
2. Front console map/reading lamp lens loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.

ROOF RACK
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Revision: August 20072004 QX56
ROOF RACKPFP:73155
Removal and InstallationEIS002XF
1. Remove screws, raise tie down hooks and remove finisher covers.
2. Remove bolts and remove front crossbar and gasket.
3. Remove screws, raise tie down hooks and remove slide rail covers.
4. Remove sliding crossbar.
5. Remove bolts and remove slide rails.
Installation is in the reverse order of removal.

To install finisher covers and slide rail covers, rotate tie hooks to the 50 degrees up position and slip cover
over tie down. Press down until clip is engaged. Rotate tie down hook to the down position. Install screws.
1. Sliding crossbar 2. Finisher cover 3. Front crossbar
4. Gasket 5. Slide rail 6. Slide rail cover
LIIA1031E

EI-38
HEADLINING
Revision: August 20072004 QX56
CAUTION:
Disconnect both terminals from battery in advance.
1. Remove body side trim. Refer to EI-34, "
BODY SIDE TRIM" .
2. Remove luggage floor trim. Refer to EI-39, "
LUGGAGE FLOOR TRIM" .
3. Remove sunvisor assemblies.
4. Remove sunvisor clips.
5. Remove sunroof welt (if equipped).
6. Remove front roof console.

Disconnect harnesses.
7. Remove rear roof console.

Disconnect harnesses.
8. Remove assist grips.
9. Remove lamp assembly from rear roof finisher.

Disconnect harness.
10. Remove rear roof finisher.
11. Remove headlining.

Remove clips from rear of headlining.

Disconnect harnesses.
12. Remove rear air control.

Disconnect harness.
13. Remove rear audio control assembly.

Disconnect harness.
14. Remove lamp assemblies.

Disconnect harnesses.
15. Remove air vents.
16. Remove the front roof console bracket.
17. Remove rear roof console front bracket.
18. Remove assist grip brackets from roof.
Installation is in the reverse order of removal.
1. Headlining (without sunroof) 2. Assist grip bracket 3. Assist grip
4. Sunvisor assembly LH 5. Cap LH 6. Sunvisor holder
7. Front roof console 8. Sunglass bin 9. Sunroof welt
10. Cap RH 11. Sunvisor assembly RH 12. Rear roof console bracket
13. Rear storage bin or DVD display 14. Rear air control 15. Rear audio control assembly
16. Rear roof console 17. Rear roof console finisher 18. Rear storage bin
19. Air vent 20. Lamp assembly 21. Plastic clip
22. Headlining (with sunroof) 23. Rear lamp lens 24. Rear lamp
25. Rear roof finisher 26. Plastic clip 27. Metal clip

EM-38Revision: August 2007
TIMING CHAIN
2004 QX56
10. Remove the oil pump drive spacer.

Hold and remove the flat space of the oil pump drive spacer
by pulling it forward.
11. Remove the oil pump. Refer to LU-13, "
Removal and Installation" .
12. Remove the chain tensioner on the left bank using the following steps.
NOTE:
To remove the timing chain and associated parts, start with those on the left bank. The procedure for
removing parts on the right bank is omitted because it is the same as that for the left bank.
a. Squeeze the return-proof clip ends using suitable tool and push
the plunger into the tensioner body.
b. Secure the plunger using stopper pin.

Stopper pin is made from hard wire approximately 1 mm (0.04
in) in diameter.
c. Remove the bolts and chain tensioner.
WAR NIN G:
Plunger, spring, and spring seat pop out when (squeezing)
return-proof clip without holding plunger head. It may
cause serious injuries. Always hold plunger head when
removing.
NOTE:

Stop the plunger in the fully extended position by using the
return-proof clip 1 if the stopper pin is removed.

Push the plunger 2 into the tensioner body while squeezing
the return-proof clip 1. Secure it using stopper pin 3.
13. Remove the chain tension guide and slack guide.
14. Remove the timing chain and crankshaft sprocket.
15. Loosen the camshaft sprocket bolts as shown and remove the
camshaft sprocket.
CAUTION:
To avoid interference between valves and pistons, do not
turn crankshaft or camshaft when timing chain is discon-
nected.
16. Repeat the same procedure to remove the right timing chain and
associated parts.
KBIA2512E
KBIA2479E
KBIA2483E
KBIA2513E

EM-44Revision: August 2007
CAMSHAFT
2004 QX56
b. At this time, make sure both intake and exhaust cam lobes of
No. 1 cylinder (top front on left bank) point outside.

If they do not point outside, turn crankshaft pulley once more.
3. Remove the chain case cover (right bank) and (left bank).
a. Loosen and remove the bolts in the reverse order shown.
b. Cut the liquid gasket to remove covers using Tool.
CAUTION:
Do not damage mating surfaces.
4. Paint matching marks on the timing chain links aligning with
camshaft sprocket matching marks.
5. Remove the chain tensioner on the left bank using the following steps.
WAR NIN G:
Plunger, spring, and spring seat pop out when squeezing return-proof clip without holding
plunger head. It may cause serious injuries. Always hold plunger head when removing.
a. Squeeze return-proof clip ends using suitable tool and push the
plunger into the tensioner body.
b. Secure plunger using stopper pin.

Stopper pin is made from hard wire approximately 1 mm (0.04
in) in diameter.
c. Remove the bolts and the chain tensioner.
KBIA0400J
Tool number: KV10111100 (J-37228)
KBIA2475E
KBIA2488E
KBIA2479E