wheel alignment INFINITI FX35 2008 User Guide

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
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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
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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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STABILIZER BARFSU-15
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STABILIZER BAR
Removal and InstallationINFOID:0000000001327543
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove stabilizer connecting rod lower nut with power tool, sep- arate stabilizer bar and stabilizer connecting rod.
4. Remove stabilizer clamp mounting bolts and nuts with power tool.
5. Remove stabilizer bar, stabilizer clamp, stabilizer bushing from vehicle.
6. Remove stabilizer connecting rod upper nut with power tool, separate stabilizer connecting rod and strut.
INSPECTION AFTER REMOVAL
Check stabilizer bar, stabilizer connecting rod, stabiliz er bushing and stabilizer clamp deformation, cracks and
damage, and replace if necessary.
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".
 Stabilizer bar uses pillow ball type connecting rod. Position ball
joint with case on pillow ball head parallel to stabilizer bar.
SEIA0335E
SEIA0330E
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FSU-16
< SERVICE INFORMATION >
FRONT SUSPENSION MEMBER
FRONT SUSPENSION MEMBER
Removal and InstallationINFOID:0000000001327544
REMOVAL
1. Set engine slinger to engine, then suspend an engine.
2. Remove tires from vehicle with power tool.
3. Remove undercover with power tool.
4. Remove front cross bar.
5. Remove mounting bolts which are at the back of transverse link(mounting part with body) with power tool, separate transverse
link.
6. Remove mounting bolts which are at the front of transverse link with power tool, separate transverse link.
7. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-37
.
8. Remove mounting bolts of steering gear with power tool, then hang steering gear on vehicle. Refer to PS-17
.
9. Remove stabilizer bar from front suspension member and stabi- lizer connecting rod lower side with power tool.
10. Remove mounting nuts between engine mounting insulator and front suspension member.
11. Remove mounting nuts between front suspension member and body with power tool.
12. Move jack down slowly to remove front suspension member from vehicle.
INSPECTION AFTER REMOVAL
Check front suspension member for deformation, cr acks, or any other damage. Replace if necessary.
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 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".
SEIA0331E
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SERVICE DATA AND SPECIFICATIONS (SDS)
FSU-17
< SERVICE INFORMATION >
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SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel Alignment (Unladen*)INFOID:0000000001327545
*: Fuel, engine coolant and lubricant are oil full. Spare tire, jack, hand tools and mats are in designated positions.
Ball JointINFOID:0000000001327546
Wheelarch Height (Unladen*)INFOID:0000000001327547
Camber
Degree minute (Decimal degree) Minimum
−1 °29 ′ ( −1.48 °)
Nominal −0 °44 ′ ( −0.73 °)
Maximum 0 °01 ′ (0.02 °)
Left and right difference 45 ′ (0.75 °) or less
Caster
Degree minute (Decimal degree) Minimum 3
°02 ′ (3.03 °)
Nominal 3 °47 ′ (3.78 °)
Maximum 4 °32 ′ (4.53 °)
Left and right difference 45 ′ (0.75 °) or less
Kingpin inclination
Degree minute (Decimal degree) Minimum 12
°20 ′ (12.33 °)
Nominal 13 °05 ′ (13.08 °)
Maximum 13 °50 ′ (13.83 °)
Total toe-in Distance
Minimum 0.6 mm (0.024 in)
Nominal 1.6 mm (0.063 in)
Maximum 2.6 mm (0.102 in)
Angle (left wheel or right wheel)
Degree minute (Decimal degree) Minimum 0
°01 ′ (0.02 °)
Nominal 0
° 04 ′ (0.06 °)
Maximum 0 °06 ′ (0.10 °)
Axial end play 0 mm (0 in)
Swing torque 0.5 − 4.9 N·m (0.06 − 0.49 kg-m, 5 − 43 in-lb)
Measurement on spring balance 0.5 − 4.9 N·m (0.06 − 0.49 kg-m, 5 − 43 in-lb)
Destination USA Canada
Engine VQ35DE VK45DE VQ35DE VK45DE
Axle 2WD AWD AWD
Tire size 265/60R18 265/50R20 265/60R18 265/50R20 265/60R18 265/50R20
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GENERAL MAINTENANCEMA-3
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GENERAL MAINTENANCE
Explanation of Gene ral MaintenanceINFOID:0000000001328893
General maintenance includes those items which shoul d be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform
checks and inspections themselves or have their INFINITI dealers do them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the vehicle,
etc.
Item Reference page
Tires Check the pressure with a gauge, including the spare, at least once a month
and always prior to a long distance trips. Adjust to the specified pressure if nec-
essary. Check carefully for damage, cuts or excessive wear. —
Wheel nuts When checking the tires, make sure no nuts are missing, and check for any
loose nuts. Tighten if necessary. —
Windshield Clean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary. —
Tire rotation Tires should be rotated every 12,000 km (7,500 miles). MA-31
Transmitter compo-
nents in tire pressure
monitoring system
(TPMS)Replace grommet seal, valve core and cap of the transmitter in TPMS every tire
replacement by reaching wear limit of tire.
WT-10
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel
balancing may be needed. MA-30
,
FSU-5
Windshield wiper
blades Check for cracks or wear if they do not wipe properly. —
Doors and engine
hood Check that all doors and the engine hood operate smoothly as well as the trunk
lid and back hatch. Also make sure that all latches lock securely. Lubricate if
necessary. Make sure that the secondary latch keeps the hood from opening
when the primary latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently. MA-35
Lamps
Make sure that the headlamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head-
lamp aim. Clean the headlamps on a regular basis. —
Item
Reference page
Warning lamps and
chimes Make sure that all warning lamps and chimes are operating properly. —
Windshield wiper and
washer Check that the wipers and washer operate properly and that the wipers do not
streak.
—
Windshield defroster Check that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner. —
Steering wheel Check that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises.
Free play: Less than 35 mm (1.38 in) —
Seats Check seat position controls such as seat adjusters, seatback recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every po-
sition. Check that the head restrains move up and down smoothly and that the
locks (if equipped) hold securely in all latched positions. Check that the latches
lock securely for folding-down rear seatbacks. —
Seat belts Check that all parts of the seat belt system (e.g. buckles, anchors, adjusters
and retractors) operate properly and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying, wear or damage. MA-35
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