2008 INFINITI FX35 wheel alignment

FSU-1
SUSPENSION
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SECTION FSU
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O PCONTENTS
FRONT SUSPENSION
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Caution ................................................................ ......2
PREPARATION ...................................................3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ................................ ......4
FRONT SUSPENSION ASSEMBLY ...................5
On-Vehicle Inspection and Service ..................... ......5
Wheel Alignment Inspection ......................................5
Removal and Installation ...........................................6
COIL SPRING AND STRUT ..............................10
Removal and Installation ..................................... ....10
Disassembly and Assembly .....................................11
TRANSVERSE LINK .........................................13
Removal and Installation ..................................... ....13
STABILIZER BAR .............................................15
Removal and Installation .........................................15
FRONT SUSPENSION MEMBER .....................16
Removal and Installation .........................................16
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
17
Wheel Alignment (Unladen*) ...................................17
Ball Joint ..................................................................17
Wheelarch Height (Unladen*) ..................................17
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FSU-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
CautionINFOID:0000000001327533
• When installing rubber bushings, final tightening must be carried out under unladen conditions with tires on
ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
 Unladen conditions mean that fuel, engine coolant and l ubricant 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.
 Avoid burden to front cross bar.
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FSU-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327536
Use chart below to help you find the cause of the symp tom. If necessary, repair or replace these parts.
×: ApplicableReference page
FSU-6FSU-11
—
—
—
FSU-6FSU-5FSU-15
NVH in PR section
NVH in RFD section
NVH in FAX and FSU section
NVH in WT section
NVH in WT section
NVH in FAX section NVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Strut deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT (For AWD models)
DIFFERENTIAL (For AWD models)
FRONT AXLE AND FRONT SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT (For AWD models)
BRAKE
STEERING
Symptom FRONT SUSPENSION Noise
××××× × ××× ×××××
Shake ×××× × × × ×××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or han-
dling ×× × × × ×× × × ×
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FRONT SUSPENSION ASSEMBLYFSU-5
< SERVICE INFORMATION >
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FRONT SUSPENSION ASSEMBLY
On-Vehicle Inspection and ServiceINFOID:0000000001327537
Make sure the mounting conditions (looseness, back lash) of each component and component conditions
(wear, damage) are normal.
INSPECTION LOWER BALL JOINT END PLAY
1. Set front wheels in a straight-ahead position. Do not depress brake pedal.
2. Place an iron bar or similar tool bet ween transverse link and steering knuckle.
3. Measure axial end play by prying it up and down.
CAUTION:
Be careful not to damage ball joint boot.
STRUT INSPECTION
 Check strut for oil leakage, damage and replace if there are. Refer to FSU-10.
Wheel Alignment InspectionINFOID:0000000001327538
DESCRIPTION
 Measure wheel alignment under unladen conditions.
NOTE:
Unladen conditions mean that fuel, engine coolant, and l ubricant are full. Spare tire, jack, hand tools and
mats are designated positions.
PRELIMINARY CHECK
 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 compression rod, upper link, and steering knuckle
 Check shock absorber operation.
 Check each mounting part of axle and suspension for looseness and deformation.
 Check each link, rod 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. Axial end play : 0 mm (0 in)
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FSU-6
< SERVICE INFORMATION >
FRONT SUSPENSION ASSEMBLY
- Use the “Jacking Compensation Method”. After installing the alignment targets or head units, raise the vehi-
cle and rotate the wheels 1/2 turn both ways.
- See Instructions in the alignment machine you're using for more information on this.
INSPECTION OF CAMBER, CASTER AND KINGPIN INCLINATION ANGLES
 Camber, caster, kingpin inclination angles cannot be adjusted.
 Before inspection, mount front wheels onto turning radius gauge. Mount rear wheels onto a stand that has
same height so vehicle will remain horizontal.
Removal and InstallationINFOID:0000000001327539
COMPONENTS
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FRONT SUSPENSION ASSEMBLYFSU-9
< SERVICE INFORMATION >
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18. Remove mounting bolts which are at the back of transverse link (mounting part with body) with power tool, separate transverse
link.
19. Remove mounting nuts between front suspension member and body with power tool.
20. Move jack down slowly to remove front suspension member, transverse link, stabilizer bar, drive shaft (For AWD models) and
steering knuckle from vehicle as a unit.
21. Remove transverse link from steering knuckle. Refer to FSU-13
.
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.
 After removing/installing or replacing suspensi on components and steering components, check wheel align-
ment. Refer to FSU-5, "
Wheel Alignment Inspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
 Check the following item after service.
- Installation condition of wheel sensor harness.
SEIA0331E
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FSU-10
< SERVICE INFORMATION >
COIL SPRING AND STRUT
COIL SPRING AND STRUT
Removal and InstallationINFOID:0000000001327540
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove brake hose lock plate. Then remove brake hose fromstrut assembly.
3. Remove wheel sensor harness from strut assembly. CAUTION:
Do not pull wheel sensor harness.
4. Remove stabilizer connecting rod upper nut with power tool, separate stabilizer connecting rod and strut assembly.
5. Remove fixing bolts and nuts between strut assembly and steer- ing knuckle with power tool.
6. Remove mounting nuts on mounting insulator bracket with power tool, then remove strut upper plate, strut spacer and strut
from vehicle.
INSTALLATION
 Refer to FSU-6, "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.
 After removing/installing or replacing suspension components, check wheel alignment. Refer to FSU-5,
"Wheel Alignment Inspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
 Check the following item after service.
- Installation condition of wheel sensor harness.
SEIA0328E
SEIA0329E
SEIA0330E
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FSU-14
< SERVICE INFORMATION >
TRANSVERSE LINK
 Attach mounting nut to ball stud. Check that rotating torque iswithin the specifications with a preload gauge (SST).
 If it is outside the specified range, replace transverse link assem- bly.
Axial End Play Inspection
 Move tip of ball joint in axial direction to check for looseness.
 If it is outside the specified range, replace transverse link assembly.
INSTALLATION
 Refer to FSU-6, "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.
 After removing/installing or replacing suspension components, check wheel alignment. Refer to FSU-5,
"Wheel Alignment Inspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
Rotating Torque:
Less than 0.5
− 4.9 N·m (0.06 − 0.49 kg-m, 5 − 43 in-lb)
SDIA1150E
Axial end play : 0.1 mm (0.004 in)
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