2008 INFINITI FX35 suspension

PS-10
< SERVICE INFORMATION >
STEERING WHEEL
a. Disconnect lower joint and steering knuckle from steering gear assembly. Refer to PS-12, "Removal and
Installation", FA X - 4 , "Removal and Installation", FAX-11, "Removal and Installation".
b. Start and run engine at idle to make sure steer ing fluid has reached normal operating temperature.
c. While pulling outer socket slowly in ±11.5 mm ( ±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. Placefront 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 assembly, steering column assembly and front suspension components for
wear or damage if any of the turning angles are different from the
specified value. Replace any of them, if any non-standard condi-
tion exists.
Removal and InstallationINFOID:0000000001327713
REMOVAL
NOTE:
When reconnecting spiral cable, fix cable with a tape so that fixing case and rotating part keep aligned. This
will omit neutral position alignment procedure during spiral cable installation. 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
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGRAX-5
< SERVICE INFORMATION >
CEF
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K L
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RAX
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327525
Use chart below to help you find the cause of the symp tom. If necessary, repair or replace these parts.
×: ApplicableReference page
—
RAX-10—
RAX-6—
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 sectionNVH 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
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom DRIVE
SHAFT
Noise
×× ×××××× ××
Shake × × × ×××× ××
REAR AXLE Noise
×× ××× ×××××
Shake ×× × × ×××××
Vibration ×××××××
Shimmy ×× × × × × ×
Judder × × ×× ××
Poor quality ride or handling ×× × ××
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REAR WHEEL HUB AND KNUCKLERAX-7
< SERVICE INFORMATION >
CEF
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RAX
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9. Remove parking brake cable and parking brake shoe from back plate. Refer to PB-6 and PB-4.
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
.
14. Remove fixing bolts and nuts in axle side of fr ont 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 nu t 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 tor que of suspension arm ball joint. Refer to RSU-11, "Removal
and Installation".
INSTALLATION
 Refer to "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 conditions
with tires on level ground, Check wheel alignment. Refer to RSU-5, "
Wheel AlignmentInspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
Disassembly and AssemblyINFOID:0000000001327528
DISASSEMBLY
Wheel Bearing
CAUTION:
Do not disassemble if wheel bearing has no trouble.
1. Remove wheel bearing fixing bolts and anchor block fixing nuts, and remove wheel hub and bearing assembly, back plate and anchor block from axle.
2. Using a drift (SST) and a puller (suitable tool), press wheel hub out to remove from wheel bearing.
SDIA1482E
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGRFD-7
< SERVICE INFORMATION >
CEF
G H
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K L
M A
B
RFD
N
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327493
Use the chart below to help you find t he cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
Refer to
RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
Refer to RFD-17, "
Disassembly and Assembly
".
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
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom Noise ×××××××××××××
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RSU-1
SUSPENSION
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SECTION RSU
A
B
RSU
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O PCONTENTS
REAR SUSPENSION
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Cautions .............................................................. ......2
PREPARATION ...................................................3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ................................ ......4
REAR SUSPENSION ASSEMBLY .....................5
On-Vehicle Inspection and Service ..................... ......5
Wheel AlignmentInspection .......................................5
Removal and Installation ...........................................6
SHOCK ABSORBER ..........................................9
Removal and Installation ..................................... ......9
Disassembly and Assembly ......................................9
SUSPENSION ARM ..........................................11
Removal and Installation ..................................... ....11
RADIUS ROD ................................... .................13
Removal and Installation ..................................... ....13
FRONT LOWER LINK .......................................14
Removal and Installation .........................................14
REAR LOWER LINK & COIL SPRING .............15
Removal and Installation .........................................15
STABILIZER BAR .............................................16
Removal and Installation .........................................16
REAR SUSPENSION MEMBER .......................17
Removal and Installation ..................................... ....17
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
18
Wheel Alignment (Unladen*) ...................................18
Ball Joint ..................................................................18
Wheelarch Height (Unladen*) ..................................18
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RSU-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
CautionsINFOID:0000000001327548
• When installing rubber bushings, final tightening must be carried out under unladen conditions with tires on
level ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
 Unladen conditions means that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
 After servicing suspension parts, be sure to check wheel alignment.
 Caulking nuts are not reusable. Always use new ones w hen installing. Since new caulking nuts are pre-oiled,
tighten as they are.
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RSU-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327551
Use chart below to help you find the cause of the symp tom. If necessary, repair or replace these parts.
×: ApplicableReference page
RSU-6RSU-9—
—
—
RSU-6FSU-5RSU-16
NVH in PR section
NVH in RFD section
NVH in RAX and RSU section
NVH in WT section
NVH in WT section
NVH in RAX section
NVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom REAR SUSPENSION Noise
×××××× ××××××××
Shake ×××× × × ××××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or
handling ××××× ×× ×××
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REAR SUSPENSION ASSEMBLYRSU-5
< SERVICE INFORMATION >
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RSU
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REAR SUSPENSION ASSEMBLY
On-Vehicle Inspection and ServiceINFOID:0000000001327552
Make sure the mounting conditions (looseness, ba ck lash) of each component and component status (wear,
damage) are normal.
INSPECTION OF BALL JOINT END PLAY
Measure axial end play by installing and moving up/down with an
iron pry bar or something similar between suspension arm and axle.
CAUTION:
Be careful not to damage ball joint boot.
SHOCK ABSORBER INSPECTION
Check shock absorber for oil leakage, damage and replace if necessary.
Wheel AlignmentInspectionINFOID:0000000001327553
DESCRIPTION
 Measure wheel alignment under unladen conditions. “U nladen conditions” means that fuel, engine coolant,
and lubricant are full. Spare tire, jack, hand tools and mats in designated positions.
PRELIMINARY INSPECTION
 Check tires for improper air pressure and wear.
 Check road wheels for runout.
 Check wheel bearing axial end play.
 Check ball joint axial end play of suspension arm.
 Check shock absorber operation.
 Check each mounting point of axle and suspension for looseness and deformation.
 Check each link, arm and member for cracks, deformation, and other damage.
 Check vehicle posture.
GENERAL INFORMATION AND RECOMMENDATIONS
 A four-wheel thrust alignment should be performed.
- This type of alignment is recomm ended for any NISSAN/INFINITI vehicle.
- The four-wheel “thrust” process helps ensure that t he vehicle is properly aligned and the steering wheel is
centered.
- The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
- The rack should be checked to ensure that it is level.
 Make sure the machine is properly calibrated.
- Your alignment equipment should be regularly ca librated in order to give correct information.
- Check with the manufacturer of your specific equi pment for their recommended Service/Calibration Sched-
ule.
THE ALIGNMENT PROCESS
IMPORTANT:
Use only the alignment specificati ons listed in this Service Manual.
 When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Do NOT use these indicators.
- The alignment specifications programmed into your machine that operate these indicators may not be cor-
rect.
- This may result in an ERROR.
 Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com-
pensate” the sensors (alignment targets or head units). DO NOT use this “Rolling Compensation”
method. Standard value
Axial end play : 0 mm (0 in)
SEIA0245J
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