Nissan Pathfinder (2007 year). Instruction — part 233

INTAKE MANIFOLD

EM-21

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2007 Pathfinder

INSTALLATION

Installation is in the reverse order of removal. Note the following:

Intake Manifold

●

If stud bolts were removed from cylinder head, install them and tighten to the specified torque.

●

Tighten all nuts and bolts to the specified torque in two or more
steps in numerical order as shown.

Intake manifold studs

: 11.0 N·m (1.1kg-m, 8 ft-lb)

Intake manifold bolt and nuts

1st step

: 7.4 N·m (0.75 kg-m, 5 ft-lb)

2nd step and after

: 29.0 N·m (3.0 kg-m, 21 ft-lb)

PBIC2879E

EM-22

EXHAUST MANIFOLD AND THREE WAY CATALYST

2007 Pathfinder

EXHAUST MANIFOLD AND THREE WAY CATALYST

PFP:14004

Removal and Installation

EBS00QBS

REMOVAL (LEFT BANK)

1.

Remove air cleaner case and air duct. Refer to

EM-16, "REMOVAL"

.

2.

Remove engine undercover with power tool.

3.

Disconnect harness connector and remove heated oxygen sen-
sor 2 on both banks using Tool.

CAUTION:

●

Be careful not to damage heated oxygen sensor 2.

●

Discard any heated oxygen sensor 2 which has been
dropped from a heught of more than 0.5 m (19.70 in) onto
a hard surface such as a concrete floor; replace with a
new sensor.

4.

Remove center exhaust tube, main muffler and left front exhaust tube. Refer to

EX-4, "REMOVAL"

.

5.

Remove exhaust manifold cover (left bank).

1.

Exhaust manifold cover (right bank)

2.

Exhaust manifold (right bank)

3.

Gasket

4.

Exhaust manifold cover (left bank)

5.

Exhaust manifold (left bank)

PBIC2880E

Tool number

: KV10114400 (J-38365)

LBIA0446E

EXHAUST MANIFOLD AND THREE WAY CATALYST

EM-23

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2007 Pathfinder

6.

Disconnect harness connector and remove air fuel ratio sensor
1 (left bank) using Tool.

CAUTION:

●

Be careful not to damage air fuel ratio sensor 1.

●

Discard any air fuel ratio sensor 1 which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; replace with a new
sensor.

7.

Remove three way catalyst (left bank).

8.

Loosen nuts with power tool in reverse order as shown.

NOTE:
Disregard the numerical order No. 7 and 8 in removal.

9.

Remove gaskets.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSPECTION AFTER REMOVAL
Surface Distortion

●

Check the surface distortion of the exhaust manifold mating sur-
face with straightedge and feeler gauge.

●

If it exceeds the limit, replace exhaust manifold.

Tool number

: KV991J0050 (J-44626)

LBIA0447E

PBIC2881E

Limit

: 0.3 mm (0.012 in)

PBIC1096E

EM-24

EXHAUST MANIFOLD AND THREE WAY CATALYST

2007 Pathfinder

INSTALLATION (LEFT BANK)

Installation of the remaining components is in the reverse order of removal. Note the following:

Exhaust Manifold Gasket

Install in direction as shown.

Exhaust Manifold

●

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

●

Install exhaust manifold and tighten nuts in numerical order as
shown.

NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 shown second step.

Heated Oxygen Sensor

CAUTION:

●

Before installing a new air fuel ratio sensor 1 and heated oxygen sensor 2, clean exhaust system
threads using oxygen sensor thread cleaner and apply anti-seize lubricant.

●

Do not over torque air fuel ratio sensor 1 and heated oxygen sensor 2. Doing so may cause dam-
age to air fuel ratio sensor 1 and heated oxygen sensor 2, resulting in the “MIL” coming on.

PBIC2882E

Exhaust manifold stud torque

: 14.7 N·m (1.5 kg-m, 11 ft-lb)

PBIC2881E

Tool number

: (

—

) J-43897-12

: (

—

) J-43897 18

EXHAUST MANIFOLD AND THREE WAY CATALYST

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2007 Pathfinder

REMOVAL (RIGHT BANK)

1.

Remove engine assembly. Refer to

EM-105, "REMOVAL"

.

2.

Loosen nuts with power tool in reverse order as shown.

NOTE:
Disregard the numerical order No. 7 and 8 in removal.

3.

Remove gaskets.

CAUTION:

Cover engine openings to avoid entry of foreign materials.

INSPECTION AFTER REMOVAL
Surface Distortion

●

Check the surface distortion of the exhaust manifold mating sur-
face with straightedge and feeler gauge.

●

If it exceeds the limit, replace exhaust manifold.

PBIC2881E

Limit

: 0.3 mm (0.012 in)

PBIC1096E

EM-26

EXHAUST MANIFOLD AND THREE WAY CATALYST

2007 Pathfinder

INSTALLATION (RIGHT BANK)

Installation of the remaining components is in the reverse order of removal. Note the following:

Exhaust Manifold Gasket

Install in direction as shown.

Exhaust Manifold

●

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

●

Install exhaust manifold and tighten nuts in numerical order as
shown.

NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 shown second step.

Heated Oxygen Sensor

CAUTION:

●

Before installing a new air fuel ratio sensor 1 and heated oxygen sensor 2, clean exhaust system
threads using oxygen sensor thread cleaner and apply anti-seize lubricant.

●

Do not over torque air fuel ratio sensor 1 and heated oxygen sensor 2. Doing so may cause dam-
age to air fuel ratio sensor 1 and heated oxygen sensor 2, resulting in the “MIL” coming on.

PBIC2882E

Exhaust manifold stud torque

: 14.7 N·m (1.5 kg-m, 11 ft-lb)

PBIC2881E

Tool number

: (

—

) J-43897-12

: (

—

) J-43897 18

OIL PAN AND OIL STRAINER

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2007 Pathfinder

OIL PAN AND OIL STRAINER

PFP:11110

Removal and Installation

EBS00QBT

REMOVAL (LOWER)

WARNING:

To avoid the danger of being scalded, do not drain engine oil when engine is hot.

1.

Drain engine oil. Refer to

LU-9, "Changing Engine Oil"

.

2.

Remove oil pan (lower) as follows:

a.

Loosen bolts with power tool in reverse order as shown to
remove.

1.

Oil pan (upper)

2.

Oil pressure switch

3.

O-ring

4.

Relief valve

5.

O-ring

6.

Oil cooler

7.

Connector bolt

8.

Oil filter

9.

Drain plug

10. Drain plug washer

11.

Oil pan (lower)

12. Rear cover plate

13. Oil strainer

14

O-ring

15. Oil level gauge guide

16. Oil level gauge

PBIC2883E

PBIC2890E

EM-28

OIL PAN AND OIL STRAINER

2007 Pathfinder

b.

Remove oil pan (lower) using Tool.

CAUTION:

●

Be careful not to damage the mating surfaces.

●

Do not insert screwdriver, this will damage the mating
surfaces.

NOTE:
Slide seal cutter (1) by tapping on the side (2) of the tool with
hammer.

INSPECTION AFTER REMOVAL

Clean oil strainer if any object attached.

INSTALLATION (LOWER)

1.

Install oil pan (lower) as follows:

a.

Use scraper to remove old liquid gasket from mating surfaces.

●

Also remove old liquid gasket from mating surface of oil pan
(upper).

●

Remove old liquid gasket from the bolt holes and thread.

CAUTION:

Do not scratch or damage the mating surfaces when clean-
ing off old liquid gasket.

b.

Apply a continuous bead of liquid gasket using Tool to the oil
pan (lower) as shown.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "Recommended Chemical Products and Sealants"

.

CAUTION:

Attaching should be done within 5 minutes after coating.

c.

Install oil pan (lower).

●

Tighten bolts in numerical order as shown.

2.

Install oil pan drain plug. Refer to

EM-27, "Removal and Installation"

.

3.

Installation is in the reverse order of removal.

NOTE:
At least 30 minutes after oil pan is installed, pour engine oil.

Tool number

: KV10111100 (J-37228)

WBIA0566E

PBIC2888E

Tool number

: WS39930000 (

—

)

PBIC2889E

PBIC2890E