suspension INFINITI FX35 2007 Workshop Manual

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ALPHABETICAL INDEX
Refrigeration cycle ...........................................
ATC-21
Removal and installation (A/T) ........... AT-266, AT-269
Removal and installation (Transfer) .................... TF-44
Revolution sensor (A/T) ...................... AT-118, AT-259
Rocker cover(VK45DE) ................................... EM-200
Rocker cover(VQ35DE) ..................................... EM-51
RP/SEN - Wiring diagram ................ EC-664, EC-1346
S
SAE J1979 - Service $01 - 09 ........... EC-129
, EC-715
Seal - See Exterior .............................................. EI-27
Seat belt inspection ............................................. SB-7
Seat belt, front ..................................................... SB-4
Seat, rear ......................................................... SE-104
Self-diagnosis (Transfer) .................................... TF-22
Self-diagnostic results ....................................... EC-70
SEN/PW - Wiring diagram ............... EC-484, EC-1152
SHIFT - Wiring diagram ................................... AT-233
Shift lock system .............................................. AT-232
Shift schedule .................................................. AT-359
Shock absorber (rear) ....................................... RSU-9
Side air bag (satellite) sensor .......................... SRS-51
Side curtain air bag .......................................... SRS-48
Side trim .............................................................. EI-38
SMJ (super multiple junction) ............................ PG-76
SNOW MODE SW ........................... EC-668, EC-1350
SNOWSW - Wiring diagram ............ EC-669, EC-1351
Spark plug replacement ..................................... MA-27
Spark plug replacement(VQ35DE) .................... MA-20
Spark plug(VK45DE) ....................................... EM-192
Spark plug(VQ35DE) ......................................... EM-43
Specification value ............................. EC-137, EC-802
Speedometer ........................................................ DI-5
Spiral cable ...................................................... SRS-44
SROOF - Wiring diagram ..................... BL-166, RF-13
SRS - See Supplemental Restraint System ...... SRS-5
SRS - Wiring diagram ...................................... SRS-12
SRS Trouble diagnoses ..................................... SRS-8
Stabilizer bar (rear) ......................................... RSU-16
Stall test (A/T) .................................................... AT-53
Standardized relay ............................................. PG-78
START - Wiring diagram ................................... SC-12
Starter ................................................................ SC-11
Starting system .................................................. SC-11
Steering gear and linkage inspection ................ MA-36
Steering linkage ................................................. PS-18
Steering wheel and column ................... PS-10, PS-13
Stop lamp switch ............................. EC-552, EC-1233
STSIG - Wiring diagram .................................. AT-108
Sun roof, electric ................................................ RF-10
Sunload sensor ............................. ATC-109, ATC-118
Sunroof .................................................. RF-10, RF-23
Supplemental Restraint System ........................ SRS-5
Supplemental restraint system - Wiring diagram ..........
SRS-12
Suspension ........................................................ MA-37
Symbols and abbreviations ..................... GI-11, GI-24
Symptom matrix chart ........................................ EC-96
System readiness test (SRT) code ...... EC-59, EC-721
T
Tachometer ........................................................... DI-5
TCM circuit diagram ........................................... AT-52
TCM inspection table ......................................... AT-89
Thermostat(VK45DE) ....................................... CO-53
Thermostat(VQ35DE) ....................................... CO-27
Three way catalyst function (Bank 1) EC-376, EC-1045
Three way catalyst function (Bank 2) EC-376, EC-1045
Three way catalyst precautions ............................ GI-6
Three way catalyst(VK45DE) .......................... EM-183
Three way catalyst(VQ35DE) ........................... EM-26
Throttle control motor ....................... EC-569, EC-1251
Throttle control motor relay .............. EC-557, EC-1238
Throttle position sensor (TPS) .......... EC-214, EC-338,
EC-509
, EC-511, EC-590, EC-886, EC-1009, EC-1185,
EC-1187
, EC-1272
Throttle valve closed position learning . EC-83, EC-745
Tie-rod ............................................................... PS-18
Timing chain(VK45DE) ................................... EM-203
Timing chain(VQ35DE) ..................................... EM-64
Tire rotation ....................................................... MA-35
Top tether strap child restraint ........................... SB-11
Torque converter installation AT-267, AT-268, AT-272
Torque convertor clutch solenoid valve AT-125, AT-127
TPS1 - Wiring diagram .................... EC-340, EC-1011
TPS2 - Wiring diagram ...................... EC-216, EC-888
TPS3 - Wiring diagram .................... EC-592, EC-1274
Traction control system circuit (engine) .......... EC-494,
EC-495
Transfer control unit inspection table ................. TF-21
Transverse link (front) ...................................... FSU-14
TRNSCV - Wiring diagram ............................... BL-226
Trouble diagnoses .............................................. GI-12
Two trip detection logic ........................ EC-53, EC-715
Tyre pressure monitoring system - trouble diagnoses ..
WT-15
Tyre pressure monitoring system - wiring diagram .......
WT-16
U
Unified meter and A/C amp. ............................... DI-28
V
Vacuum hose (brake system) ............................ BR-17
Vacuum hose drawing (Engine control) ........... EC-106
Valve clearance(VK45DE) .............................. EM-222
Valve clearance(VQ35DE) ................................ EM-93
Valve guide ..................................................... EM-108
Valve guide(VK45DE) ..................................... EM-239
Valve lifter ......................................................... EM-87
Valve seat(VK45DE) ....................................... EM-241
Valve seat(VQ35DE) ...................................... EM-110
Valve spring(VK45DE) .................................... EM-242
Valve spring(VQ35DE) ................................... EM-111

MA-2Revision: 2006 July 2007 FX35/FX45
CALIPER ..........................................................
... 36
PAD .................................................................. ... 36
Checking Steering Gear and Linkage .................. ... 36
STEERING GEAR ............................................ ... 36
STEERING LINKAGE ....................................... ... 36
Checking Power Steering Fluid and Lines ........... ... 37
Axle and Suspension Parts .................................. ... 37
Drive Shaft ........................................................... ... 38
Lubricating Locks, Hinges and Hood Latch ......... ... 38
Checking Seat Belt, Buckles, Retractors, Anchors
and Adjusters ....................................................... ... 39
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 40
Standard and Limit ............................................... ... 40
BELT DEFLECTION AND TENSION (VQ35DE) ... 40
BELT DEFLECTION AND TENSION (VK45DE) ... 40
ENGINE COOLANT CAPACITY (APPROXI- MATE) (VQ35DE) .............................................
... 40
ENGINE COOLANT CAPACITY (APPROXI-
MATE) (VK45DE) .............................................. ... 40
RADIATOR ........................................................ ... 40
ENGINE OIL CAPACITY (APPROXIMATE)
(VQ35DE) ......................................................... ... 40
ENGINE OIL CAPACITY (APPROXIMATE)
(VK45DE) .......................................................... ... 41
SPARK PLUG (PLATINUM-TIPPED TYPE)
(VQ35DE) ......................................................... ... 41
SPARK PLUG (PLATINUM-TIPPED TYPE)
(VK45DE) .......................................................... ... 41
WHEEL BALANCE ........................................... ... 41

PERIODIC MAINTENANCE MA-11
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Revision: 2006 July 2007 FX35/FX45
* Maintenance items and intervals with “*” are recommended by INFINITI for reliable vehicle operation. The owner need not perfo rm
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required
CHASSIS AND BODY MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary.
NOTE:
(1) Using automatic transmission fluid other than Genuine NISSAN Matic J ATF will cause deterioration in driveability and
automatic transmission durability, and may damage the automatic transmission, which is not covered by the INFINITI new
vehicle limited warranty.
(2) Refer to “Tire rotation” under the “GENERAL MAINTENANCE” heading earlier in this section. MAINTENANCE OPERATION
MAINTENANCE INTERVAL
Reference Sec-
tion - Page or -
Content Title
Perform at number of miles, kilo-
meters or months, whichever
comes first. Miles x 1,000
(km x 1,000) Months 7.5
(12) 6 15
(24) 12 22.5
(36) 18 30
(48) 24 37.5
(60) 30 45
(72) 36 52.5
(84) 42 60
(96) 48
Brake lines & cables IIII MA-35
Brake pads & rotors
IIII MA-36
Automatic transmission & trans-
fer fluid & differential gear oil NOTE (1) I I I I
MA-29,
MA-31 ,
MA-32
Steering gear, linkage & transfer
gear, axle & suspension parts I I MA-36,
MA-37
Tire rotation NOTE (2) MA-4,
MA-35
Drive shaft boots and propeller
shaft (AWD models) IIII
MA-38, MA-32
Exhaust system
II MA-29
In-cabin microfilter
RR RR AT C - 1 2 4

CHASSIS AND BODY MAINTENANCE MA-37
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Revision: 2006 July 2007 FX35/FX45
Checking Power Steering Fluid and LinesNLS00070
Check fluid level in reservoir tank with engine off.
Use “HOT” range at fluid temperatures of 50 to 80 °C (122 to 176 °F)
or “COLD” range at fluid temperatures of 0 to 30 °C (32 to 86 °F).
CAUTION:

Do not overfill.

Recommended fluid is Genuine NISSAN PSF or equivalent.
Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRI-
CANTS"


Check lines for improper attachment, leaks, cracks, dam-
age, loose connections, chafing and deterioration.

Check rack boots for accumulation of power steering fluid.
Axle and Suspension PartsNLS00071
Check front and rear axle and suspension parts for excessive play,
cracks, wear or other damage.

Shake each wheel to check for excessive play.

Check wheel bearings for smooth operation.

Check axle and suspension nuts and bolts for looseness.

Check strut (shock absorber) for oil leakage or other damage.

Check suspension ball joint for grease leakage and ball joint
dust cover for cracks or other damage.
SST850C
SST851C
SMA525A
SFA392B

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING PR-3
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Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000AS
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable
Reference page
Front
PR-4—
—
—
—
PR-4PR-5
NVH in FFD and RFD section
NVH in FAX, RAX, FSU, and RSU section
NVH in WT section
NVH in WT section
NVH in RAX section
NVH in BR section
NVH in PS section
RearPR-7PR-11—
PR-8—
PR-7PR-10
Possible cause and SUSPECTED PARTS
Uneven rotating torque
Center bearing improper installation
Excessive center bearing axial end play
Center bearing mounting (insulator) cracks, damage or deterioration
Excessive joint angle
Rotation imbalance
Excessive runout
DIFFERENTIAL
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise
××××××××××××××
Shake × × ××××××
Vibration ××××××× ×× × ×

FRONT PROPELLER SHAFT PR-5
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Revision: 2006 July 2007 FX35/FX45
Removal and InstallationNDS000AV
REMOVAL
1. Remove the front and rear engine undercover with a power tool.
2. Remove the front cross bar with a power tool. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
3. Remove the exhaust front tube bracket with a power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
4. Disconnect the heated oxygen sensor harness connector.
5. Remove the exhaust front tube mounting nuts with a power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
6. Remove the right bank three way catalyst with a power tool. Refer to EM-26, "
Removal and Installation"
(VQ35DE), EM-183, "Removal and Installation" (VK45DE).
7. Remove the power steering piping mounting bolts. Refer to PS-
41, "HYDRAULIC LINE" .
8. Remove the power steering gear box fixing bolts to secure work- ing area for removal of propeller shaft. Refer to PS-18, "
POWER
STEERING GEAR AND LINKAGE" .
CAUTION:
Be careful not to damage the steering gear box piping dur-
ing removal.
9. Put matching marks onto propeller shaft flange yoke and final drive companion flange.
CAUTION:
For matching mark, use paint. Do not damage propeller
shaft flange and companion flange.
10. Remove the propeller shaft fixing bolts.
11. Set the transmission jack at the transfer, remove rear engine mounting bolts, and then lower transmission jack about 40 - 50
mm (0.16 - 0.21 in).
12. Remove propeller shaft from the front final drive and transfer.
INSPECTION

Inspect propeller shaft runout at measuring point. If runout
exceeds specifications, replace propeller shaft assembly. For
measuring point, refer to PR-4, "
Propeller Shaft Runout Measur-
ing Point" .
SDIA1516E
SDIA1517E
SDIA1518E
Propeller shaft runout limit : 0.8 mm (0.031 in)
SPD106

REAR PROPELLER SHAFT PR-9
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Revision: 2006 July 2007 FX35/FX45
Removal and InstallationNDS000AY
REMOVAL
1. Move the A/T select lever to N position and release the parking brake.
2. Remove the tunnel stay with power tool. Refer to RSU-5, "
REAR
SUSPENSION ASSEMBLY" .
3. Remove the center muffler with power tool. Refer to EX-3,
"EXHAUST SYSTEM" .
4. Loosen mounting nuts of center bearing mounting brackets with power tool.
CAUTION:
Tighten mounting nuts temporarily.
5. For 2WD models

Put matching marks on propeller shaft rebro joint with final
drive companion flange.
CAUTION:
For matching mark, use paint. Do not damage propeller
shaft and companion flange.
For AWD models

Put matching marks on propeller shaft flange yoke with trans-
fer companion flange and on rebro joint with final drive com-
panion flange.
CAUTION:
For matching mark, use paint. Do not damage propeller shaft flange yoke, rebro joint and com-
panion flanges.
6. Remove propeller shaft fixing bolts and nuts.
7. Remove center bearing mounting bracket fixing nuts.
8. Remove propeller shaft.
CAUTION:
If constant velocity joint was bent during propeller shaft assembly removal, installation, or trans-
portation, its boot may be damaged. Wrap boot interference area to metal part with shop cloth or
rubber to protect boot from breakage.
PDIA0744E
PDIA0402E
PDIA0470E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING PS-7
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Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNGS000BS
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
PS-8PS-8PS-24PS-24PS-24PS-8PS-10PS-10
EM-15
,
EM-174PS-10PS-13PS-18PS-13PS-13PS-18
NVH in PR section
NVH in RFD section
NVH in FAX, RAX, FSU, RSU section NVH in WT section
NVH in WT section
NVH in FAX section
NVH in BR section
Possible cause and suspected parts
Fluid level
Air in hydraulic system
Outer socket ball joint swinging force
Outer socket ball joint rotating torque
Outer socket ball joint end play
Steering fluid leakage
Steering wheel play
Steering gear rack sliding force
Drive belt looseness
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting rubber deterioration
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
PROPELLER SHAFT
DIFFERENTIAL
AXLE and SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
Symptom STEERING Noise
× × ××××× × × ×××××× ×
Shake ××× × ×××× ×
Vibration ××××× × ×× ×
Shimmy ××× × ××× ×
Judder × × ××× ×

PS-10
STEERING WHEEL
Revision: 2006 July 2007 FX35/FX45
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceNGS000BW
CHECKING CONDITION OF INSTALLATION

Check installation condition of steering gear assembly, front suspension, axle and steering column.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check if the mounting bolts for steering gear assembly are loose
or not. Refer to PS-18, "
POWER STEERING GEAR AND LINK-
AGE" .
CHECKING STEERING WHEEL PLAY
1. Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumference when steering wheel is turned up to the point
where tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to FSU-
6, "Wheel Alignment Inspection" .
1. Set vehicle to the straight direction, check if steering wheel is in the neutral position.
2. If it is not in the neutral position, remove steering wheel and reinstall it correctly.
3. If the neutral position cannot adjust in the two teeth of steering gear assembly, loosen outer socket lock nuts of steering outer sockets, then adjust outer socket by the same amount in the opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is approximately 50 to 80 °C (122 to 176 °F).]
NOTE:
Tires need to be inflated normal pressure.
4. Check steering wheel turning force when steering wheel has been turned 360 ° from neutral position.
NOTE:
Multiply the distance L from the hook of spring balance to the
center of steering wheel by the measurement value with a spring
balance.
5. If steering wheel turning force is out of the specification, check rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-30,
"On-Vehicle Inspection and Service" .
a. Disconnect lower joint and steering knuckle from steering gear assembly. Refer to PS-13, "
COMPO-
NENTS" , FAX-4, "COMPONENTS" , FA X - 1 0 , "COMPONENTS" .
End play of the axle direction for steering wheel : 0 mm (0 in)
SGIA0546E
Steering wheel play on the outer circumference : 0
− 35 mm (0 − 1.38 in)
Steering wheel turning force : Less than 7.45 N·m (0.76 kg-m, 66 in-lb)
SGIA1136E

STEERING WHEEL PS-11
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Revision: 2006 July 2007 FX35/FX45
b. Start and run engine at idle to make sure steering fluid has reached normal operating temperature.
c. While pulling outer socket slowly in ±11 . 5 m m ( ±0.453 in) range
from neutral position, make sure rack sliding force is within
specification.
d. If rack sliding force is not within specification, overhaul steering gear assembly.
CHECKING FRONT WHEEL TURNING ANGLE

Check front wheel turning angle after the toe-in inspection.
Place front wheels on turning radius gauges and rear wheels on
stands so that vehicle can be level. Check the maximum inner
and outer wheel turning angles for LH and RH road wheels.

Start engine and run at idle, turn steering wheel all the way right
and left, measure the turning angle.

Measure rack stroke if angles are outside the specified value.

Disassemble steering gear assembly to check the cause that
rack stroke is outside of the standard.

Steering angles are not adjustable. Check steering gear assem-
bly, steering column assembly and front suspension compo-
nents for wear or damage if any of the turning angles are
different from the specified value. Replace any of them, if any
non-standard condition exists. Rack sliding force
: 147 − 211 N (15 − 21.5 kg, 33 − 47 lb)
SST090B
FAA0016D
Inner wheel (Angle: A) Minimum 32
°00’ (32.0 °)
Nominal 35 °00’ (35.0 °)
Maximum 36 °00’ (36.0 °)
Outer wheel (Angle: B) 30 °00’ (30.0 °)
SGIA0055E
Rack stroke L 67.0 mm (2.638 in)
SGIA0629J