Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Xterra 2005-2007.2009 Approved Nissan Xterra 2009 EM

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ENGINE

EM
A

EM
SECTION
ENGINE MECHANICAL C

E
CONTENTS
VQ40DE Removal and Installation ........................................14
. F

PRECAUTION .............................................. 3
. SPARK PLUG ................................................... 15
Exploded View ........................................................15
.
G
PRECAUTIONS .................................................. 3
. Removal and Installation ........................................15
.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- CAMSHAFT VALVE CLEARANCE .................. 17
SIONER" .................................................................. 3
. Valve Clearance .....................................................17
. H
Precaution for Drain Engine Coolant ........................ 3 .
COMPRESSION PRESSURE ........................... 21
Precaution for Disconnecting Fuel Piping ................ 3 .
Compression Pressure ...........................................21
.
Precaution for Removal and Disassembly ............... 3 . I
Precaution for Inspection, Repair and Replace- ON-VEHICLE REPAIR ................................ 23
.
ment ......................................................................... 3
.
Precaution for Assembly and Installation ................. 3 . ENGINE ROOM COVER ................................... 23 J
Parts Requiring Angle Tightening ............................ 4 . Removal and Installation ........................................23
.
Precaution for Liquid Gasket .................................... 4 .
AIR CLEANER AND AIR DUCT ....................... 24
PREPARATION ........................................... 6
. Exploded View ........................................................24
. K
Removal and Installation ........................................24
.
PREPARATION .................................................. 6
.
Special Service Tool ................................................ 6
. INTAKE MANIFOLD COLLECTOR .................. 25 L
Commercial Service Tool ......................................... 8
. Exploded View ........................................................25
.
Removal and Installation ........................................25
.
FUNCTION DIAGNOSIS ............................. 10
.
INTAKE MANIFOLD ......................................... 28 M
NOISE, VIBRATION AND HARSHNESS Exploded View ........................................................28
.
(NVH) TROUBLESHOOTING ...........................10
. Removal and Installation ........................................28
.
NVH Troubleshooting - Engine Noise .................... 10 . N
Use the Chart Below to Help You Find the Cause EXHAUST MANIFOLD AND THREE WAY
of the Symptom ...................................................... 10
. CATALYST ........................................................ 30
Exploded View ........................................................30
.
ON-VEHICLE MAINTENANCE ................... 12
. Removal and Installation ........................................30
. O

DRIVE BELTS ...................................................12
. OIL PAN AND OIL STRAINER ......................... 34
Exploded View ....................................................... 12
. Exploded View ........................................................34
. P
Checking Drive Belts .............................................. 12
. Removal and Installation ........................................34
.
Adjustment ............................................................. 12
.
Removal and Installation ........................................ 12. IGNITION COIL ................................................. 39
Drive Belt Auto Tensioner and Idler Pulley ............ 13 . Exploded View ........................................................39
.
Removal and Installation ........................................39
.
AIR CLEANER FILTER .....................................14
.
Exploded View ....................................................... 14
. ROCKER COVER ............................................. 40

Revision: October 2008 EM-1 2009 Xterra
Exploded View ....................................................... 40
. Disassembly and Assembly ................................... 95
.
Removal and Installation ....................................... 40
. Inspection After Disassembly ................................. 97
.

FUEL INJECTOR AND FUEL TUBE ................ 44
. REMOVAL AND INSTALLATION ............. 102
Exploded View ....................................................... 44
.
Removal and Installation ....................................... 44
. ENGINE ASSEMBLY ...................................... 102
.
Exploded View ..................................................... 102
.
FRONT TIMING CHAIN CASE ......................... 49
. Removal and Installation ...................................... 102
.
Exploded View ....................................................... 49
.
Removal and Installation ....................................... 50
. DISASSEMBLY AND ASSEMBLY ........... 106
TIMING CHAIN ................................................. 59
. ENGINE UNIT .................................................. 106
.
Exploded View ....................................................... 59
. Exploded View ..................................................... 106
.
Removal and Installation ....................................... 60
. Disassembly and Assembly ................................. 107 .
Inspection After Disassembly ............................... 117 .
CAMSHAFT ...................................................... 79
. Dowel Pin Alignment ............................................ 127
.
Exploded View ....................................................... 79
.
Removal and Installation ....................................... 80
. HOW TO SELECT PISTON AND BEARING .. 129
How to Select Piston and Bearing ....................... 129
.
OIL SEAL .......................................................... 88
.
Removal and Installation of Valve Oil Seal ............ 88
. SERVICE DATA AND SPECIFICATIONS
Removal and Installation of Front Oil Seal ............ 88
. (SDS) ......................................................... 134
Removal and Installation of Rear Oil Seal ............. 89
.
SERVICE DATA AND SPECIFICATIONS
CYLINDER HEAD ............................................. 91
. (SDS) ............................................................... 134
.
Exploded View ....................................................... 91
. Standard and Limit ............................................... 134
.
Removal and Installation ....................................... 91
.
Exploded View ....................................................... 95
.

Revision: October 2008 EM-2 2009 Xterra
PRECAUTIONS
< PRECAUTION > [VQ40DE]

PRECAUTION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT EM
PRE-TENSIONER" INFOID:0000000004063557

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along C
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. D
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING: E

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