2007 INFINITI FX35 suspension

REAR PROPELLER SHAFT PR-9
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B
PR
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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PS
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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B
PS
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

PREPARATION RAX-3
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RAX
Revision: 2006 July 2007 FX35/FX45
PREPARATIONPFP:00002
Special Service Tools (SST)NDS000CE
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsNDS000CF
Tool number
(Kent-Moore No.)
Tool name Description
ST33251000
( — )
Drift

Removing wheel hub

Removing wheel bearing outer side
inner race

Installing wheel hub

Inspection of wheel bearing rotating
torque
ST35300000
( — )
Drift
a: 45 mm (1.77 in) dia.
b: 59 mm (2.32 in) dia.

Installing wheel hub

Inspection of wheel bearing rotating
torque
KV40100900
( — )
Drift
a: 52 mm (2.05 in) dia.
b: — Wheel bearing rotating torque
inspection
KV38100500
( — )
Drift
a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia. Installing drive shaft plug
KV38102200
( — )
Drift
a: 90 mm (3.54 in) dia.
b: 31 mm (1.22 in) dia. Installing drive shaft plug
ZZA0982D
ZZA0881D
ZZA0539D
ZZA0701D
ZZA0920D
Tool name
Description
Power tool

Removing wheel nuts

Removing brake caliper assembly

Removing wheel hub and bearing
assembly

Removing suspension links

Removing drive shaft fixing bolts
and nutsPBIC0190E

RAX-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000CG
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
—
RAX-9—
RAX-5—
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section
Refer to REAR AXLE in this chart. NVH in WT section
NVH in WT section
Refer to DRIVE SHAFT in this chart. NVH in BR section
NVH in PS section
Possible cause and SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
REAR AXLE
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom DRIVE
SHAFT Noise
×× ×××××× ××
Shake ×× ×××××××
REAR
AXLE Noise
×× ××× ×××××
Shake ×××××××××
Vibration ×××××××
Shimmy ×× ×××××
Judder × × ×× ××
Poor quality ride or handling ×× × ××

RAX-6
REAR WHEEL HUB AND KNUCKLE
Revision: 2006 July 2007 FX35/FX45
9. Remove parking brake cable and parking brake shoe from back plate. Refer to PB-6, "PARKING BRAKE
SHOE" and PB-4, "PARKING BRAKE CONTROL" .
10. Remove fixing nuts of anchor block with power tool, then remove anchor block and back plate from axle.
11. Loosen fixing bolts and nuts of front lower link, radius rod, and rear lower link in side of suspension mem- ber.
12. Set jack under rear lower link. Then remove fixing bolt in front lower link side of shock absorber with power tool.
13. Remove bolt and nut in axle side of rear lower link with power tool. Then remove coil spring. Refer to RSU-15, "
REAR LOWER LINK & COIL SPRING" .
14. Remove fixing bolts and nuts in axle side of front lower link, radius rod with power tool.
15. Remove suspension arm and cotter pin at axle, then loosen mounting nut.
16. Use a ball joint remover (suitable tool) to remove suspension arm from axle. Be careful not to damage ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to threads and to prevent ball joint remover
(suitable tool) from coming off.
17. Remove axle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each parts, replace if necessary.
Ball Joint Inspection
Check for boot breakage, axial looseness, and torque of suspension arm ball joint. Refer to RSU-11,
"INSPECTION AFTER REMOVAL" .
INSTALLATION

Refer to RAX-5, "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

Perform final tightening of installation position of suspension links (rubber bushing) under unladen condi-
tions with tires on level ground, Check wheel alignment. Refer to RSU-5, "
Wheel Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING RFD-7
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RFD
Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000BK
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
Refer to
RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-20, "
Tooth Contact
" .
Refer to RFD-26, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to RFD-21, "
Backlash
" .
Refer to RFD-22, "
Companion Flange Runout
" .
Refer to RFD-9, "
Checking Differential Gear Oil
" .
NVH in PR section.
NVH in FAX, RAX, FSU and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise ×××××××××××××