tires INFINITI FX35 2007 Workshop Manual

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 ×× × ××

REAR WHEEL HUB AND KNUCKLE RAX-5
C E F
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M A
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RAX
Revision: 2006 July 2007 FX35/FX45
REAR WHEEL HUB AND KNUCKLEPFP:40202
On-Vehicle Inspection NDS000D1
Make sure the mounting conditions (looseness, back lash) of each component and component status (wear,
damage) are normal.
WHEEL BEARING INSPECTION
With the vehicle raised, inspect the following.

Move wheel hub in the axial direction by hand. Check that there is no looseness of front wheel bearing.

Rotate wheel hub and make sure there is no unusual noise or other irregular conditions. If there are any
irregular conditions, replace wheel hub and bearing assembly.
Removal and InstallationNDS000CI
COMPONENTS
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove cotter pin. Then remove lock nut from drive shaft.
3. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
26, "Removal and Installation of Brake Caliper Assembly" .
NOTE:

Avoid depressing brake pedal while brake caliper is removed.
4. Remove disc rotor. Refer to BR-26, "
Removal and Installation of Brake Caliper Assembly" .
5. Remove parking cable and parking shoe from back plate. Refer to PB-4, "
Removal and Installation" .
6. Remove wheel sensor from axle. Refer to BRC-57, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
7. Separate drive shaft from wheel hub and bearing assembly by lightly tapping the end with a suitable ham- mer and wood block. If it is hard to separate, use a suitable puller.
8. Remove fixing bolts of wheel hub and bearing assembly with power tool, then remove wheel hub and bearing assembly from axle. Axial end play : 0.05 mm (0.002 in) or less
1. Drive shaft 2. Bushing 3. Axle
4. Back plate 5. Anchor block 6. Wheel bearing
7. Wheel hub 8. Cotter pin
SDIA1481E

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" .

REAR DRIVE SHAFT RAX-9
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M A
B
RAX
Revision: 2006 July 2007 FX35/FX45
REAR DRIVE SHAFTPFP:39600
Removal and InstallationNDS000CK
COMPONENTS
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove cotter pin. Then remove lock nut from drive shaft.
3. Remove fixing nuts and bolts between side flange and drive shaft with power tool.
4. Using a puller (suitable tool), remove drive shaft from steering knuckle.
CAUTION:
When removing drive shaft, do not apply an excessive
angle to drive shaft joint.Also be careful not to excessively
extend slide joint.
5. Remove drive shaft from axle.
INSPECTION AFTER REMOVAL

Move joint up/down, left/right, and in the axial direction. Check
for any rough movement or significant looseness.

Check boot for cracks or other damage, and also for grease
leakage.

If a trouble is found, disassemble drive shaft, and then replace
with new one.
INSTALLATION
Refer to RAX-9, "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.
1. Side flange 2. Cotter pin
SDIA1487E
SDIA0972J
RAA0030D

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING RFD-7
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M A
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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 ×××××××××××××

RSU-2
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
CautionsNES000G0

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 when installing. Since new caulking nuts are pre-
oiled, tighten as they are.

RSU-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000G3
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
RSU-7RSU-9—
—
—
RSU-7FSU-6RSU-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
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom REAR SUSPENSION Noise
×××××× ××××××××
Shake ×××× × × ××××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or
handling ××××× ×× ×××

REAR SUSPENSION ASSEMBLY RSU-5
C
D
F
G H
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K L
M A
B
RSU
Revision: 2006 July 2007 FX35/FX45
REAR SUSPENSION ASSEMBLYPFP:55020
On-Vehicle Inspection and ServiceNES000HU
Make sure the mounting conditions (looseness, back 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 Alignment InspectionNES000HV
DESCRIPTION

Measure wheel alignment under unladen conditions. “Unladen conditions” means that fuel, engine cool-
ant, 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 recommended for any NISSAN/INFINITI vehicle.
–The four-wheel “thrust” process helps ensure that the 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 calibrated in order to give correct information.
–Check with the manufacturer of your specific equipment for their recommended Service/Calibration
Schedule. Standard value
Axial end play : 0 mm (0 in)
SEIA0245J

RSU-8
REAR SUSPENSION ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
25, "REAR DISC BRAKE" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
3. Remove wheel sensor from rear final drive, then remove wheel sensor harness from rear suspension member.
4. Remove height sensor harness from rear suspension member (if equipped).
5. Remove center muffler and main muffler. Refer to EX-3, "
Components" .
6. Remove stabilizer bar. Refer to RSU-16, "
Removal and Installation" .
7. Remove rear propeller shaft. Refer to PR-9, "
Removal and Installation" .
8. Separate attachments between parking brake cable and vehicle and rear suspension member.
9. Remove rear lower link and coil spring. Refer to RSU-14, "
Removal and Installation" .
10. Remove fixing bolt in lower side of shock absorber with power tool.
11. Set jack under rear final drive.
12. Remove fixing bolts and nuts of tunnel stay and member stay with power tool, then remove those parts from vehicle.
13. Remove fixing bolts and nuts of rear pin stay with power tool and then remove rear pin stay from vehicle.
14. Gradually lowering jack, remove rear suspension assembly.
INSTALLATION

Refer to RSU-7, "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 links (rubber bushing) under unladen conditions 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" .
1. Bushing 2. Mounting seal 3. Mounting seal bracket
4. Distance tube 5. Bound bumper cover 6. Bound bumper
7. Shock absorber 8. Upper seat 9. Coil spring
10. Rubber seat 11. Rear lower link 12. Axle assembly
13. Cotter pin 14. Radius rod 15. Front lower link protector
16. Front lower link 17. Stopper rubber 18. Shock absorber assembly
19. Suspension arm 20. Stabilizer connecting rod mounting bracket 21. Stabilizer connecting rod
22. Rear pin stay 23. Rear suspension member 24. Stabilizer bar
25. Stabilizer bushing 26. Stabilizer clamp 27. Member stay
28. Tunnel stay A: With height sensor B: Without height sensor
Refer to GI-11, "
Components" , for the symbols in the figure.

SHOCK ABSORBER RSU-9
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M A
B
RSU
Revision: 2006 July 2007 FX35/FX45
SHOCK ABSORBERPFP:56210
Removal and InstallationNES000G8
REMOVAL
1. Remove tires from vehicle with power tool.
2. Set jack under rear lower link.
3. Remove fixing bolt in lower side of shock absorber assembly with power tool.
4. Remove fixing nuts in upper side of shock absorber assembly with power tool and remove shock absorber assembly from
vehicle.
INSPECTION AFTER REMOVAL

Check shock absorber assembly for deformation, cracks, or damage, and replace if necessary.

Check piston rod for damage, uneven wear, or distortion, and replace if necessary.

Check welded and sealed areas for oil leakage, and replace if necessary.
INSTALLATION

Refer to RSU-7, "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 shock absorber assembly lower side (rubber bushing) under unladen condi-
tions with tires on level ground. Check wheel alignment. Refer to RSU-18, "
Wheel Alignment (Unladen*)" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .
Disassembly and AssemblyNES000G9
DISASSEMBLY
CAUTION:
Make sure piston rod on shock absorber is not damaged when removing components from shock
absorber.
1. Remove mounting seal from mounting seal bracket.
2. Wrap a shop cloth around lower side of shock absorber and fix it in a vise.
CAUTION:
Do not set the cylindrical part of shock absorber in vise.
3. Fix piston rod with hexagon wrench, and remove piston rod lock nut.
4. Remove mounting seal bracket, bushing, distance tube, bound bumper cover and bound bumper from shock absorber.
FA-0274D
SEIA0366E