Nissan Murano Z51 (2008 year). Manual - part 173

INTAKE MANIFOLD

EM-33

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• Tighten all mounting nuts and bolts to the specified torque in two or

more steps in numerical order shown in the figure.

Inspection

INFOID:0000000003304109

INSPECTION AFTER REMOVAL

Surface Distortion

• Check the surface distortion of the intake manifold mating surface

with a straightedge (A) and a feeler gauge (B).

• If it exceeds the limit, replace intake manifold.

: Engine front

 1st step

: 7.4 N·m (0.75 kg-m, 5 ft-lb)

 2nd step and after

: 25.5 N·m (2.6 kg-m, 19 ft-lb)

JPBIA1630ZZ

Limit

: Refer to 

EM-142, "Intake Manifold"

.

JPBIA0015ZZ

Revision: 2008 October

2009 Murano

EM-34

< ON-VEHICLE REPAIR >

EXHAUST MANIFOLD AND THREE WAY CATALYST

EXHAUST MANIFOLD AND THREE WAY CATALYST

Exploded View

INFOID:0000000003304110

Removal and Installation

INFOID:0000000003304360

REMOVAL

WARNING:

Perform the work when the exhaust and cooling system have completely cooled down.

1.

Remove following parts:

1.

Gasket

2.

Exhaust manifold (bank 1)

3.

Exhaust manifold cover (bank 1)

4.

Air fuel ratio sensor 1 (bank 1)

5.

Ring gasket

6.

Three way catalyst (bank 1)

7.

Three way catalyst support (bank 1)

8.

Heated oxygen sensor 2 (bank 1)

9.

Three way catalyst (bank 2)

10. Three way catalyst support (bank 2)

11. Heated oxygen sensor 2 (bank 2)

12.

Ring gasket

13. Exhaust manifold (bank 2)

14. Exhaust manifold cover (bank 2)

15.

Air fuel ratio sensor 1 (bank 2)

A.

To oil pan (upper)

B.

Upper mark

C.

Stud bolt and flange bolt type 
(bank 2)

D.

Flange bolt type (bank 2)

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA2710GB

Revision: 2008 October

2009 Murano

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-35

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• Radiator core support covers (RH and LH), air duct (inlet), air cleaner case (upper) with mass air flow

sensor and air duct assembly: Refer to 

EM-27, "Exploded View"

.

• Engine cover: Refer to 

EM-25, "Exploded View"

.

• Front wiper arm: Refer to 

WW-126, "Exploded View"

.

• Extension cowl top: Refer to 

EXT-20, "Exploded View"

.

2.

Remove exhaust front tube. Refer to 

EX-5, "Exploded View"

.

3.

Disconnect harness connector and remove air fuel ratio sensor
1 on both banks with the heated oxygen sensor wrench [SST:
KV10117100 (J-3647-A)] (B).
• Put marks to identify installation positions of each air fuel ratio

sensor 1.

CAUTION:

• Be careful not to damage air fuel ratio sensor 1.
• Discard any air fuel ratio sensor 1 which has been

dropped onto a hard surface such as a concrete floor.
Replace with a new sensor.

NOTE:
Figure is shown as an example of bank 2 (A).

4.

Disconnect harness connector and remove heated oxygen sen-
sor 2 on both banks with the heated oxygen sensor wrench
[SST: KV10114400 (J-38365)] (B).

• Put marks to identify installation positions of each heated oxy-

gen sensor 2.

CAUTION:

• Be careful not to damage heated oxygen sensor 2.
• Discard any heated oxygen sensor 2 which has been

dropped onto a hard surface such as a concrete floor.
Replace with a new sensor.

5.

Remove exhaust manifold covers (bank 1 and bank 2).

6.

Remove three way catalyst support mounting bolts (bank 1 and bank 2).

7.

Remove three way catalysts by loosening bolts first and then removing nuts. (Stud bolt and flange bolt
type)

CAUTION:

Handle carefully to avoid any shock to three way catalyst.

JPBIA1781ZZ

A

: Bank 2

C

: Bank 1

JPBIA1724ZZ

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2009 Murano

EM-36

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EXHAUST MANIFOLD AND THREE WAY CATALYST

8.

Loosen mounting nuts in the reverse order as shown in the fig-
ure to remove exhaust manifolds (bank 1 and bank 2).

NOTE:
Disregard No. 7 and 8 when loosing.

9.

Remove gaskets.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSTALLATION

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

Exhaust Manifold Gasket

Install in the direction indicated in the figure.

Exhaust Manifold

• If stud bolts were removed, install them and tighten to the torque specified below.

A

:  Bank  1

B

:  Bank  2

: Engine front

JPBIA1633ZZ

A

:  Bank  1

B

: Triangle press

C

:  Bank  2

: Engine front

PBIC4954E

: 15.4 N·m (1.6 kg-m, 11 ft-lb)

Revision: 2008 October

2009 Murano

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-37

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• Tighten mounting nuts in numerical order as shown in the figure.

NOTE:
No. 7 and 8 mean double tightening of nuts No. 1 and 2.

Three Way Catalyst (bank 2) Flange Bolt Type 

1.

Temporarily tighten upper side bolts (B) and lower side bolt (A)
shown in the figure.

2.

Tighten the upper side bolts (B) shown in the figure. (specified
torque)

3.

Tighten all the lower side bolts [the other four except (B)]. (spec-
ified torque)

Three Way Catalyst Supports

1.

Temporarily tighten three way catalyst support mounting bolts.

2.

Tighten three way catalyst support mounting bolts to oil pan (upper).

3.

Tighten three way catalyst support mounting bolts to three way catalyst.

Air Fuel Ratio Sensor 1 and Heated Oxygen Sensor 2

• Install air fuel ratio sensor 1 and heated oxygen sensor 2 in the original position.
• Install referring the following if the installation positions cannot be

identified.

CAUTION:

• Before installing a new air fuel ratio sensor and a new heated

oxygen sensor, clean exhaust system threads using oxygen
sensor thread cleaner (commercial service tool: J-43897-18 or
J-43897-12) and apply anti-seize lubricant (commercial ser-
vice tool).

• Never over torque air fuel ratio sensor and heated oxygen sensor. Doing so may cause damage to air

fuel ratio sensor and heated oxygen sensor, resulting in “MIL” coming on.

A

:  Bank  1

B

:  Bank  2

: Engine front

JPBIA1633ZZ

: Engine front

JPBIA2709ZZ

Glass tube color

Air fuel ratio sensor 1

: Black

Heated oxygen sensor 2

: White

PBIC2652E

Revision: 2008 October

2009 Murano

EM-38

< ON-VEHICLE REPAIR >

EXHAUST MANIFOLD AND THREE WAY CATALYST

Inspection

INFOID:0000000003304112

INSPECTION AFTER REMOVAL

Surface Distortion

• Check the surface distortion of the exhaust manifold mating sur-

face with a straightedge and a feeler gauge.

• If it exceeds the limit, replace exhaust manifold.

Limit

: Refer to 

EM-142, "Exhaust Manifold"

.

PBIC1173E

Revision: 2008 October

2009 Murano

OIL PAN AND OIL STRAINER

EM-39

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OIL PAN AND OIL STRAINER

Exploded View

INFOID:0000000003304116

Removal and Installation

INFOID:0000000003304152

REMOVAL

CAUTION:

To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
When removing oil pan (lower) or oil strainer only, take step 1 then step 19 and 20.
1.

Drain engine oil. Refer to 

LU-8, "Draining"

.

CAUTION:

Never spill engine oil on drive belt.

2.

Drain engine coolant. Refer to 

CO-8, "Draining"

.

CAUTION:

Never spill engine coolant on drive belt.

3.

Remove following parts:
• Front road wheel and tires (RH and LH).

1.

Oil pan (upper)

2.

O-ring

3.

Oil pan gasket (front)

4.

Relief valve

5.

Oil pressure switch

6.

Oil cooler

7.

Connector bolt

8.

Oil filter

9.

Oil strainer

10. Drain plug

11.

Drain plug washer

12. Oil pan (lower)

13. Rear plate cover

14. Crankshaft position sensor (POS)

15. Oil pan gasket (rear)

A.

Refer to 

LU-10

B.

To oil pump

C.

Oil pan side

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA1636GB

Revision: 2008 October

2009 Murano

EM-40

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OIL PAN AND OIL STRAINER

• Splash guard (RH and LH): Refer to 

EXT-23, "FENDER PROTECTOR : Exploded View"

.

• Exhaust front tube: Refer to 

EX-5, "Exploded View"

.

• Drive belt: Refer to 

EM-13, "Removal and Installation"

.

4.

Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to 

HA-37,

"Exploded View"

.

5.

Remove oil level gauge. Refer to 

EM-106, "Exploded View"

.

6.

Remove front drive shaft (RH). Refer to 

FAX-17, "Exploded View"

 (2WD models) or 

FAX-44, "Exploded

View"

 (AWD models).

7.

Remove three way catalyst (bank 1 and bank 2) from exhaust manifolds (bank 1 and bank 2). Refer to

EM-34, "Exploded View"

.

8.

Remove oil pressure switch.

9.

Remove oil filter. Refer to 

LU-10, "Removal and Installation"

.

10. Remove oil cooler and water pipes. Refer to 

LU-11, "Exploded View"

.

11. Support transaxle assembly with a suitable jack.

CAUTION:

When setting the transmission jack, be careful not to allow it to collide against the drain plug.

12. Support front suspension member with a suitable jack.

13. Remove engine mounting insulator (rear). Refer to 

EM-68, "2WD : Exploded View"

 (2WD models) or 

EM-

77, "AWD : Exploded View"

 (AWD models).

14. Remove engine mounting insulator (LH) mounting bolts from transaxle. Refer to 

EM-68, "2WD : Exploded

View"

 (2WD models) or 

EM-77, "AWD : Exploded View"

 (AWD models).

15. Remove rear torque rod through bolts from rear torque rod bracket. Refer to 

EM-68, "2WD : Exploded

View"

 (2WD models) or 

EM-77, "AWD : Exploded View"

 (AWD models).

16. Remove member stay, front suspension member fixing bolts and nuts. Refer to 

FSU-17, "Exploded View"

.

17. Lower the jack for the front suspension member to the height.

18. Remove transfer assembly. Refer to 

DLN-51, "Exploded View"

 (AWD models).

19. Remove oil pan (lower) as follows:
a.

Loosen mounting bolts in the reverse order as shown in the fig-
ure to remove.

b.

Insert the seal cutter [SST: KV10111100 (J-37228)] (A) between
oil pan (upper) and oil pan (lower).

CAUTION:

• Be careful not to damage the mating surfaces.
• Never insert a screwdriver, this will damage the mating

surfaces.

c.

Slide the seal cutter by tapping on the side of tool with a ham-
mer. Remove oil pan (lower).

20. Remove oil strainer.

PBIC0782E

JPBIA0276ZZ

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OIL PAN AND OIL STRAINER

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21. Loosen mounting bolts in the reverse order as shown in the fig-

ure to remove.
• Insert the seal cutter [SST: KV10111100 (J-37228)] between

oil pan (upper) and cylinder block. Slide seal cutter by tapping
on the side of tool with a hammer. Remove oil pan (upper).

CAUTION:

• Be careful not to damage the mating surfaces.
• Never insert a screwdriver, this will damage the mating

surfaces.

22. Remove O-rings (2) from bottom of cylinder block (1) and oil

pump (3).

23. Remove oil pan gaskets (1).

INSTALLATION

1.

Install oil pan (upper) as follows:

a.

Use a scraper to remove old liquid gasket from mating surfaces.

CAUTION:

Never scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
• Also remove old liquid gasket from mating surface of cylinder

block.

• Remove old liquid gasket from the bolt holes and threads.

b.

Install new oil pan gaskets.

PBIC1636E

: Engine front

JPBIA1379ZZ

A

: Notch

B

:  Protrusion

: Engine front

JPBIA0433ZZ

MEM108A

Revision: 2008 October

2009 Murano

EM-42

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OIL PAN AND OIL STRAINER

• Apply liquid gasket to new oil pan gaskets as shown in the fig-

ure.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-17, "Recommended Chemical Products and Sealants"

.

• To install, align protrusion (B) of oil pan gasket with notches

(A) of front timing chain case and rear oil seal retainer.

• Install oil pan gasket (1) with smaller arc to front timing chain

case side.

c.

Install new O-rings (2) on the bottom of cylinder block (1) and oil
pump (3).

d.

Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to the cylinder block mating surface of
oil pan (upper) to a limited portion as shown in the figure.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-17, "Recommended Chemical Products and Sealants"

.

CAUTION:

• For bolt holes with   marks (5 locations), apply liquid

gasket outside the holes.

• Apply a bead of 4.5 to 5.5 mm (0.177 to 0.217 in) diameter to area (a).
• Attaching should be done within 5 minutes after coating.

e.

Install oil pan (upper).

CAUTION:

Install avoiding misalignment of both O-rings.

C

: Sealing point

a

: 15 mm (0.59 in)

b

: 5 mm (0.20 in)

JPBIA0432ZZ

: Engine front

JPBIA0433ZZ

: Engine front

JPBIA1379ZZ

b

: 35 mm (1.38 in)

c

: 

φ

3.5 - 4.5 mm (0.138 - 0.177 in)

: Engine front

JPBIA0434ZZ

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OIL PAN AND OIL STRAINER

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• Tighten mounting bolts in numerical order as shown in the fig-

ure.

• There are three types of mounting bolts. Refer to the following

for locating bolts.

2.

Install oil strainer to oil pump.

3.

Install oil pan (lower) as follows:

a.

Use scraper (A) to remove old liquid gasket from mating sur-
faces.
• Remove old liquid gasket from the bolt holes and thread.

CAUTION:

Never scratch or damage the mating surfaces when clean-
ing off old liquid gasket.

b.

Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) (A) to the oil pan (lower) as shown in
the figure.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-17, "Recommended Chemical Products and Sealants"

.

CAUTION:

Attaching should be done within 5 minutes after coating.

c.

Install oil pan (lower).
• Tighten mounting bolts in numerical order as shown in the fig-

ure.

4.

Install oil pan drain plug.
• Refer to the figure of components of former page for installa-

tion direction of drain plug washer. Refer to 

EM-39, "Exploded

View"

.

5.

Install in the reverse order of removal after this step.
NOTE:
At least 30 minutes after oil pan is installed, pour engine oil.

Inspection

INFOID:0000000003304153

INSPECTION AFTER REMOVAL

Clean oil strainer if any object attached.

INSPECTION AFTER INSTALLATION

1.

Check the engine oil level and adjust engine oil. Refer to 

LU-7, "Inspection"

.

2.

Start engine, and check there is no leakage of engine oil.

M8 

×

 135 mm (5.31 in)

: 11

M8 

×

 92 mm (3.62 in)

: 5, 7, 8

M8 

×

 25 mm (0.98 in)

: Except the above

PBIC1636E

JPBIA0025ZZ

b

: 

φ

4.0 - 5.0 mm (0.157 - 0.197 in)

JPBIA0026ZZ

PBIC0782E

Revision: 2008 October

2009 Murano

EM-44

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OIL PAN AND OIL STRAINER

3.

Stop engine and wait for 10 minutes.

4.

Check the engine oil level again. Refer to 

LU-7, "Inspection"

.

Revision: 2008 October

2009 Murano

FUEL INJECTOR AND FUEL TUBE

EM-45

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FUEL INJECTOR AND FUEL TUBE

Exploded View

INFOID:0000000003304113

CAUTION:

Never remove or disassemble parts unless instructed as shown in the figure.

Removal and Installation

INFOID:0000000003304137

REMOVAL

WARNING:

• 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.

• Never smoke while servicing fuel system. Keep open flames and sparks away from the work area.
• To avoid the danger of being scalded, never drain engine coolant when engine is hot.

1.

Remove radiator core support covers (RH and LH), air duct (inlet), air cleaner cases (upper and lower)
with mass air flow sensor and air duct assembly. Refer to 

EM-27, "Exploded View"

.

2.

Remove engine cover. Refer to 

EM-25, "Exploded View"

.

3.

Release the fuel pressure. Refer to 

EC-545, "Inspection"

.

4.

Remove front wiper arm and extension cowl top. Refer to 

WW-126, "Exploded View"

 and 

EXT-20,

"Exploded View"

.

1.

Fuel feed hose

2.

Quick connector cap

3.

Fuel tube

4.

O-ring

5.

Fuel damper

6.

Fuel damper cap

7.

Clip

8.

O-ring (black)

9.

Fuel injector

10. O-ring (green)

A.

Refer to 

EM-45

Refer to 

GI-4, "Components"

 for symbols in the figure.

JPBIA2526GB

Revision: 2008 October

2009 Murano

EM-46

< ON-VEHICLE REPAIR >

FUEL INJECTOR AND FUEL TUBE

5.

Drain engine coolant, or when water hoses are disconnected, attach plug to prevent engine coolant leak-
age. Refer to 

CO-8, "Draining"

 or 

EM-29, "Exploded View"

.

CAUTION:

Perform this step when the engine is cold.

6.

Remove intake manifold collector. Refer to 

EM-29, "Exploded View"

.

7.

When separating fuel feed hose and fuel tube connection, disconnect quick connector as follows:

a.

Remove quick connector cap from quick connector.

b.

Disconnect quick connector from fuel tube as follows:

CAUTION:

Disconnect quick connector by using the quick connector release (commercial service tool: J-
45488), not by picking out retainer tabs.

i.

With the sleeve side of quick connector release facing to quick connector, install the quick connector
release onto fuel tube.

ii.

Insert the quick connector release (A) into quick connector (2)
until sleeve (B) contacts and goes no further. Hold quick connec-
tor release on that position.

CAUTION:

Inserting quick connector release hard will not disconnect
quick connector. Hold quick connector release where it
contacts and goes no further.

iii.

Draw and pull out quick connector straight from fuel tube (1).

CAUTION:

• Pull quick connector (E) holding position (D) as shown in

the figure.

• Never pull with lateral force applied. O-ring inside quick connector may be damaged.
• Prepare container and cloth beforehand as fuel will leakage out.
• Avoid fire and sparks.
• Keep parts away from heat source. Especially, be careful when welding is performed around

them.

• Never expose parts to battery electrolyte or other acids.
• Never bend or twist connection between quick connector and fuel feed hose (with damper) dur-

ing installation/removal.

• To keep clean the connecting portion and to avoid dam-

age and foreign materials, cover them completely with
plastic bags, etc. (A) or something similar.

8.

Disconnect harness connector from fuel injector.

9.

Loosen mounting bolts in the reverse order as shown in the fig-
ure, and remove fuel tube and fuel injector assembly.

CAUTION:

Never tilt fuel tube, or remaining fuel in pipes may flow out
from pipes.

C

: Insert and retain

JPBIA0033ZZ

JPBIA0035ZZ

: Engine front

JPBIA1715ZZ

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FUEL INJECTOR AND FUEL TUBE

EM-47

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10. Remove fuel injector from fuel tube as follows:

a.

Open and remove clip (1).

b.

Remove fuel injector (2) from fuel tube (5) by pulling straight.

CAUTION:

• Be careful with remaining fuel that may go out from fuel

tube.

• Be careful not to damage injector nozzle during removal.
• Never bump or drop fuel injector.
• Never disassemble fuel injector.

11. Remove fuel damper from fuel tube.

INSTALLATION

1.

Install fuel damper as follows:

a.

Install new O-ring (2) to fuel tube (1) as shown. When handling
new O-ring, be careful of the following caution:

CAUTION:

• Handle O-ring with bare hands. Never wear gloves.
• Lubricate O-ring with new engine oil.
• Never clean O-ring with solvent.
• Check that O-ring and its mating part are free of foreign

material.

• When installing O-ring, be careful not to scratch it with

tool or fingernails. Also be careful not to twist or stretch
O-ring. If O-ring was stretched while it was being
attached, never insert it quickly into fuel tube.

• Insert new O-ring straight into fuel tube. Never twist it.

b.

Install spacer (3) to fuel damper (4).

c.

Insert fuel damper straight into fuel tube.

CAUTION:

• Insert straight, checking that the axis is lined up.
• Never pressure-fit with excessive force.

• Insert fuel damper until (B) is touching (A) of fuel tube.

d.

Tighten bolts evenly in turn.
• After tightening bolts, check that there is no gap between fuel

damper cap (5) and fuel tube.

2.

Install new O-rings to fuel injector paying attention to the following.

CAUTION:

• Upper and lower O-ring are different. Be careful not to confuse them.

• Handle O-ring with bare hands. Never wear gloves.
• Lubricate O-ring with new engine oil.
• Never clean O-ring with solvent.
• Check that O-ring and its mating part are free of foreign material.
• When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to

twist or stretch O-ring. If O-ring was stretched while it was being attached, never insert it quickly
into fuel tube.

• Insert O-ring straight into fuel injector. Never decenter or twist it.

3

: O-ring (green)

4

: O-ring (black)

A

: Installed condition

B

: Clip mounting groove

JPBIA1958ZZ

Reference value

: 130 N (13.3 kg, 29.2 lb)

Fuel tube side

: Black

Nozzle side

: Green

JPBIA0316ZZ

Revision: 2008 October

2009 Murano

EM-48

< ON-VEHICLE REPAIR >

FUEL INJECTOR AND FUEL TUBE

3.

Install fuel injector to fuel tube as follows:

a.

Insert clip (3) into clip mounting groove (F) on fuel injector (5).

• Insert clip so that protrusion (E) of fuel injector matches cutout

(C) of clip.

CAUTION:

• Never reuse clip. Replace it with new one.
• Be careful to keep clip from interfering with O-ring. If

interference occurs, replace O-ring.

b.

Insert fuel injector into fuel tube (1) with clip attached.
• Insert it while matching it to the axial center.
• Insert fuel injector so that protrusion (A) of fuel tube matches

cutout (B) of clip.

• Check that fuel tube flange (G) is securely fixed in flange fixing

groove (D) on clip.

c.

Check that installation is complete by checking that fuel injector
does not rotate or come off.
• Check that protrusions of fuel injectors and fuel tubes are

aligned with cutouts of clips after installation.

4.

Install fuel tube and fuel injector assembly to intake manifold.

CAUTION:

Be careful not to let tip of injector nozzle come in contact with other parts.
• Tighten mounting bolts in two steps in numerical order as

shown in the figure.

5.

Connect fuel injector harness.

6.

Install intake manifold collector. Refer to 

EM-29, "Exploded View"

.

7.

Connect quick connector between fuel feed hose and fuel tube connection with the following procedure:

a.

Check no foreign substances are deposited in and around fuel tube and quick connector, and no damage
on them.

b.

Thinly apply new engine oil around fuel tube from tip end to spool end.

c.

Align center to insert quick connector straightly into fuel tube.
• Insert quick connector (1) to fuel tube until top spool (2) is

completely inside quick connector, and 2nd level spool (3)
exposes right below quick connector.

CAUTION:

• Hold (A) position as shown in the figure when inserting

fuel tube into quick connector.

• Carefully align center to avoid inclined insertion to pre-

vent damage to O-ring inside quick connector.

2

: O-ring (black)

4

: O-ring (green)

JPBIA1959ZZ

: Engine front

 1st step

: 10.1 N·m (1.0 kg-m, 7 ft-lb)

 2nd step

: 22.0 N·m (2.2 kg-m, 16 ft-lb)

JPBIA1715ZZ

B

: Fitted condition

: Upright insertion

JPBIA0275ZZ

Revision: 2008 October

2009 Murano