engine hose INFINITI M35 2007 Factory Service Manual

FL-12
FUEL TANK
Revision: 2007 April2007 M35/M45
2. Start engine and rev it up and make sure there are no fuel leaks at the fuel system tube and hose connec-
tions.

After removing/installing rear suspension assembly, make sure to adjust wheel alignment and then, adjust
neutral position of steering angle sensor. Refer to RSU-5, "
Wheel Alignment Inspection" and BRC-6,
"Adjustment of Steering Angle Sensor Neutral Position" .

FRONT SUSPENSION ASSEMBLY
FSU-9
[2WD]
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Revision: 2007 April2007 M35/M45
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Removal and Installation NES000ID
REMOVAL
1. For VK45DE engine models, disconnect related electric wires and hoses from engine assembly to remove
front suspension member with engine assembly. Refer to EM-247, "
ENGINE ASSEMBLY" .
2. Remove cowl top panel and hood. Refer to EI-18, "
COWL TOP" , EI-17, "HOOD" .
3. For VQ35DE engine models, install engine slinger, and then hoist engine. Refer to EM-114, "
Removal and
Installation (2WD Models)" .
4. Remove tires from vehicle with a power tool.
5. Remove wheel sensor from steering knuckle. Refer to BRC-54, "
WHEEL SENSOR" .
CAUTION:
Do not pull on wheel sensor harness.
6. Remove brake hose bracket. Refer to BR-11, "
BRAKE TUBE AND HOSE" .
7. Remove undercover with a power tool.
8. Remove cotter pin (1), and then loosen the nut.
9. Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using the ball joint remover
(suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover (suitable tool) from
suddenly coming off.
10. Remove the mounting nut on the upper side of stabilizer con-
necting rod with a power tool, and then remove stabilizer con-
necting rod from transverse link.
11. Separate steering gear assembly and lower joint. Refer to PS-13, "
STEERING COLUMN" .
12. Remove rack stay. Refer to FSU-8, "
Components" .
13. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-39, "
HYDRAULIC
LINE" .
14. Remove the mounting nut and bolt on the lower side of shock absorber with a power tool, and then
remove shock absorber from transverse link.
15. Remove cotter pin of transverse link and steering knuckle, and then loosen nut.
16. Set jack under front suspension member.
17. Remove transverse link from steering knuckle so as not to damage ball joint boot using the ball joint
remover (suitable tool)
CAUTION:
Temporarily tighten the nut to prevent damage to threads and to prevent ball joint remover (suit-
able tool) from suddenly coming off.
18. Remove the mounting nuts of engine mounting insulator. Refer to EM-114, "
ENGINE ASSEMBLY" .
19. Remove the mounting bolts of member bracket, and then remove member bracket from front suspension
member with a power tool. Refer to FSU-8, "
Components" .
20. Remove the mounting nut and bolts of member stay, and then remove member stay from front suspension
member and vehicle with a power tool.
21. Remove the mounting nut of front suspension member with a power tool. Refer to FSU-8, "
Components" .
1. Shock absorber mounting bracket 2. Bound bumper 3. Rubber seat
4. Coil spring 5. Shock absorber 6. Upper link
7. Steering knuckle 8. Transverse link 9. Washer
10. Steering stopper bracket 11. Stabilizer connecting rod 12. Stabilizer bar
13. Stabilizer bushing 14. Stabilizer clamp 15. Front suspension member
16. Rack stay 17. Member stay 18. Member bracket
19. Clamp 20. Cotter pin 21. Stopper rubber
Refer to GI-11, "
Components" , for the symbols in the figure.
SGIA1183E

FRONT SUSPENSION ASSEMBLY
FSU-27
[AWD]
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Revision: 2007 April2007 M35/M45
Removal and Installation NES000IT
REMOVAL
1. Remove cowl top panel and hood. Refer to EI-18, "COWL TOP" , EI-17, "HOOD" .
2. Install engine slinger, and then hoist engine. Refer to EM-119, "
Removal and Installation (AWD Models)" .
3. Remove tires from vehicle with a power tool.
4. Remove wheel sensor from steering knuckle. Refer to BRC-54, "
WHEEL SENSOR" .
CAUTION:
Do not pull on wheel sensor harness.
5. Remove brake hose bracket. Refer to BR-11, "
BRAKE TUBE AND HOSE" .
6. Remove undercover with a power tool.
7. Remove cotter pin (1), and then loosen the nut.
8. Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using the ball joint remover
(suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover (suitable tool) from
suddenly coming off.
9. Remove the mounting nut on the upper side of stabilizer con-
necting rod with a power tool, and then remove stabilizer con-
necting rod from transverse link.
10. Separate steering gear assembly and lower joint. Refer to PS-13, "
STEERING COLUMN" .
11. Remove front cross bar. Refer to FSU-26, "
Components" .
12. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-39, "
HYDRAULIC
LINE" .
13. Remove the mounting nut and bolt on the lower side of shock absorber arm with a power tool, and then
remove shock absorber arm from transverse link.
14. Remove cotter pin of transverse link and steering knuckle, and then loosen nut.
15. Remove transverse link from steering knuckle so as not to damage ball joint boot using the ball joint
remover (suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads and to prevent ball joint remover (suit-
able tool) from suddenly coming off.
16. Set jack under front suspension member.
17. Remove the mounting nuts of engine mounting insulator. Refer to EM-114, "
ENGINE ASSEMBLY" .
18. Remove the mounting bolts of member bracket, and then remove member bracket from front suspension
member with a power tool. Refer to FSU-26, "
Components" .
19. Remove the mounting nuts of front suspension member with a power tool. Refer to FSU-26, "
Compo-
nents" .
20. Gradually lower a jack to remove front suspension assembly from vehicle.
1. Shock absorber mounting bracket 2. Bound bumper 3. Rubber seat
4. Coil spring 5. Shock absorber 6. Shock absorber arm
7. Upper link 8. Steering knuckle 9. Transverse link
10. Steering stopper bracket 11. Washer 12. Stabilizer connecting rod
13. Stabilizer bar 14. Stabilizer bushing 15. Stabilizer clamp
16. Front suspension member 17. Front cross bar 18. Member bracket
19. Clamp 20. Cotter pin 21. Stopper rubber
Refer to GI-11, "
Components" , for the symbols in the figure.
SGIA1183E

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION GI
Revision: 2007 April2007 M35/M45
Revision: 2007 AprilGENERAL INFORMATION
PRECAUTIONS .......................................................... 3
Description ............................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions Necessary for Steering Wheel Rotation
after Battery Disconnect ........................................... 3
OPERATION PROCEDURE ................................. 3
Precautions for Procedures without Cowl Top Cover ..... 4
General Precautions ................................................ 4
Precautions for Three Way Catalyst ......................... 5
Precautions for Fuel (Unleaded Premium Gasoline
Recommended) (VQ35DE Engine Models) ............. 6
Precautions for Fuel (Unleaded Premium Gasoline
Required) (VK45DE Engine Models) ....................... 6
Precautions for Multiport Fuel Injection System or
Engine Control System ............................................ 6
Precautions for Hoses .............................................. 7
HOSE REMOVAL AND INSTALLATION ............... 7
HOSE CLAMPING ................................................ 7
Precautions for Engine Oils ...................................... 7
HEALTH PROTECTION PRECAUTIONS ............. 7
Precautions for the Environment .............................. 8
Precautions for Air Conditioning ............................... 8
HOW TO USE THIS MANUAL ................................... 9
Description ............................................................... 9
Terms ....................................................................... 9
Units ......................................................................... 9
Contents ................................................................... 9
Relation between Illustrations and Descriptions .... 10
Components ............................................................ 11
SYMBOLS ............................................................ 11
How to Follow Trouble Diagnoses .......................... 12
DESCRIPTION .................................................... 12
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ............................................... 12
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION ....................................... 13
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................... 14How to Read Wiring Diagrams ............................... 16
CONNECTOR SYMBOLS ................................... 16
SAMPLE/WIRING DIAGRAM - EXAMPL - .......... 17
DESCRIPTION .................................................... 18
Abbreviations .......................................................... 24
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ......................................................................... 25
How to Check Terminal ........................................... 25
CONNECTOR AND TERMINAL PIN KIT ............ 25
HOW TO PROBE CONNECTORS ...................... 25
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................... 28
WORK FLOW ...................................................... 28
INCIDENT SIMULATION TESTS ........................ 28
CIRCUIT INSPECTION ....................................... 31
Control Units and Electrical Parts ........................... 36
PRECAUTIONS .................................................. 36
CONSULT-II CHECKING SYSTEM .......................... 37
Description .............................................................. 37
Function and System Application ........................... 37
Nickel Metal Hydride Battery Replacement ............ 38
Checking Equipment .............................................. 38
CONSULT-II Start Procedure .................................. 38
CONSULT-II Data Link Connector (DLC) Circuit .... 39
INSPECTION PROCEDURE .............................. 39
CIRCUIT DIAGRAM ............................................ 40
LIFTING POINT ......................................................... 41
Commercial Service Tools ...................................... 41
Garage Jack and Safety Stand and 2-Pole Lift ....... 41
Board-On Lift .......................................................... 42
TOW TRUCK TOWING ............................................. 43
Tow Truck Towing ................................................... 43
2WD MODELS .................................................... 43
AWD MODELS .................................................... 44
Vehicle Recovery (Freeing a Stuck Vehicle) ........... 44
FRONT ................................................................ 44
REAR .................................................................. 44
AUTOMATIC TRANSMISSION ........................... 45
TIGHTENING TORQUE OF STANDARD BOLTS .... 46
Tightening Torque Table ......................................... 46

PRECAUTIONS
GI-5
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Revision: 2007 April2007 M35/M45

To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.

Dispose of or recycle drained oil or the solvent used for cleaning
parts in an appropriate manner.

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.

Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.

Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.

Replace inner and outer races of tapered roller bearings and needle bearings as a set.

Arrange the disassembled parts in accordance with their assembled locations and sequence.

Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.

After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.

Use only the fluids and lubricants specified in this manual.

Use approved bonding agent, sealants or their equivalents when required.

Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs.

When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.

Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for Three Way CatalystNAS0009G
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.

Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.

When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
SGI233
PBIC0190E
SGI234

PRECAUTIONS
GI-7
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Revision: 2007 April2007 M35/M45
Precautions for HosesNAS0009K
HOSE REMOVAL AND INSTALLATION

To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.

To reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
HOSE CLAMPING

If old rubber hose is re-used, install hose clamp in its original
position (at the indentation where the old clamp was). If there is
a trace of tube bulging left on the old rubber hose, align rubber
hose at that position.

Discard old clamps; replace with new ones.

After installing plate clamps, apply force to them in the direction
of the arrow, tightening rubber hose equally all around.
Precautions for Engine OilsNAS0009L
Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS

Avoid prolonged and repeated contact with oils, particularly used engine oils.
SMA019D
SMA020D
SMA021D
SMA022D

GW-4
PREPARATION
Revision: 2007 April2007 M35/M45
PREPARATIONPFP:00002
Special Service ToolsNIS00219
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsNIS0021A
Tool number
(Kent-Moore No.)
Tool nameDescription
(J-39570)
Chassis earLocating the noise
(J-43980)
NISSAN Squeak and
Rattle KitRepairing the cause of noise
SIIA0993E
SIIA0994E
Tool name Description
Engine ear Locating the noise
Suction lifter Holding the door glass
SIIA0995E
PIIB1805J

PREPARATION
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PREPARATIONPFP:00002
Special Service ToolsNIS00257
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsNIS00258
Tool number
(Kent-Moore No.)
Tool nameDescription
(J-39570)
Chassis earLocating the noise
(J-43980)
NISSAN Squeak and Rattle
KitRepairing the cause of noise
SIIA0993E
SIIA0994E
Tool nameDescription
Engine earLocating the noise
Power tool
SIIA0995E
PIIB1407E

LU-8
[VQ35DE]
ENGINE OIL
Revision: 2007 April2007 M35/M45

Crankshaft oil seals (front and rear)

Camshaft position sensor (PHASE)
OIL PRESSURE CHECK
WARNING:

Be careful not to get burn yourself, as engine oil may be hot.

Oil pressure check should be done in “Parking position”.
1. Check the engine oil level. Refer to LU-7, "
ENGINE OIL LEVEL" .
2. Remove front engine undercover with power tool.
3. Disconnect harness connector at oil pressure switch, and
remove oil pressure switch using deep socket (commercial ser-
vice tool).
CAUTION:
Do not drop or shock oil pressure switch.

Remove the oil pressure switch using a 26 mm (1.02 in) box
wrench. (AWD models)
4. Install the oil pressure gauge (SST) and hose (SST).
5. Start the engine and warm it up to normal operating temperature.
6. Check the engine oil pressure with engine running under no-load.
NOTE:
When the engine oil temperature is low, the engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80 °C (176 °F)]
Unit: [kPa (kg/cm2 , psi)]
If difference is extreme, check engine oil passage and oil pump for engine oil leaks.
SBIA0452E
SBIA0453E
SLC926
Engine speed Approximate discharge pressure
Idle speed More than 98 (1.0, 14)
2,000 rpm More than 294 (3.0, 43)

OIL FILTER BRACKET (AWD)
LU-13
[VQ35DE]
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Revision: 2007 April2007 M35/M45
OIL FILTER BRACKET (AWD)PFP:15238
ComponentsNBS004PZ

Refer to GI-11, "Components" for symbols in the figure.
Removal and InstallationNBS004Q0
REMOVAL
WARNING:
Be careful not to get burn yourself, as engine oil may be hot.
1. Remove front engine undercover with power tool.
2. Using the oil filter wrench [SST: KV10115801 (J38956)], remove oil filter. Refer to LU-11, "
OIL FILTER" .
CAUTION:
Do not spill engine oil on drive belt.
3. Remove connector bolt, and then oil cooler with water hoses connected.
4. Disconnect oil pressure switch harness connectors.
5. Remove oil filter bracket from oil pan (upper).
6. Remove oil pressure switch from oil filter bracket.
INSTALLATION
Note the following, and install in the reverse order of removal.

Install oil pressure switch as follows:
–Remove old liquid gasket adhering to oil filter bracket.
–Apply liquid gasket and install oil pressure switch.
1. Oil filter 2. Connector bolt 3. Oil cooler
4. O-ring 5. Relief valve 6. Oil filter bracket
7. Gasket 8. Oil pressure switch
A. Refer to LU-11

: Engine front
PBIC3393E