2009 INFINITI QX56 Factory Service Manual

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Page 3153 of 4171

INFINITI QX56 2009 Factory Service Manual
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGRSU-5
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troublesho

Page 3154 of 4171

INFINITI QX56 2009 Factory Service Manual
RSU-6
< ON-VEHICLE MAINTENANCE >
REAR SUSPENSION ASSEMBLY
ON-VEHICLE MAINTENANCE
REAR SUSPENSION ASSEMBLY
On-Vehicle Inspection and ServiceINFOID:0000000003772290
Check all of the component mountings

Page 3155 of 4171

INFINITI QX56 2009 Factory Service Manual
REAR SUSPENSION ASSEMBLYRSU-7
< ON-VEHICLE MAINTENANCE >
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If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initial

REAR SUSPENSION ASSEMBLYRSU-7
< ON-VEHICLE MAINTENANCE >
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If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization
procedure. Refer to SCS-7, "CONSULT-III Function"
.
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.
This type of alignment is re commended for any NISSAN vehicle.
The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel
is centered.
The alignment machine itself should be ca pable of accepting any NISSAN vehicle.
The alignment machine should be checked to ensure that it is level.
2. Make sure the alignment machine is properly calibrated. Your alignment machine should be regularly calibrated in order to give correct information.
Check with the manufacturer of your specific a lignment machine for their recommended Service/Cali-
bration Schedule.
THE ALIGNMENT PROCESS
IMPORTANT: Use only the alignment specifications listed in this Service Manual. Refer to RSU-29, "Wheel
Alignment (Unladen*1)".
1. When displaying the alignment settings, many alignm ent machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Do NOT use these indicators.
The alignment specifications programmed into your alignment machine that operate these indicators
may not be correct.
This may result in an ERROR.
2. 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.
Use the “Jacking Compensation” method. After installing the alignment targets or head units, raise the vehicle and rotate the wheels 1/2 turn both ways.
See Instructions in the alignment machine you are using for more information.
CAMBER
1. Measure camber of both the right and left wheels with a suitable alignment gauge and adjust as necessary to specification.
2. If outside of the specified val ue, adjust the camber using the
adjusting bolt in the front lower link.
CAUTION:
After adjusting the camber then check the toe-in.
NOTE:
Camber changes about 0 ° 5' with each graduation of the adjust-
ing bolt.
3. Tighten the adjusting bolt nuts to specification.
TOE-IN
Measure the toe-in of the rear wheels. If out of s pecification, inspect and replace any damaged or worn rear
suspension parts before adjusting. Camber : Refer to
RSU-29, "Wheel Alignment (Un-
laden*1)"
SRA096A
LEIA0041E
Total toe-in : Refer to RSU-29, "Wheel Alignment (Unladen*1)"
Revision: December 20092009 QX56

Page 3156 of 4171

INFINITI QX56 2009 Factory Service Manual
RSU-8
< ON-VEHICLE MAINTENANCE >
REAR SUSPENSION ASSEMBLY
Adjust toe-in by turning adjusting bolt on rear lower link.CAUTION:
Be sure to adjust equally on RH and LH sides using the
adjusting bolt.

Page 3157 of 4171

INFINITI QX56 2009 Factory Service Manual
REAR SUSPENSION ASSEMBLYRSU-9
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
REAR SUSPENSION ASSEMBLY
ComponentINFOID:0000000005889868
Rear Suspension Without Rear Lo ad Lev

Page 3158 of 4171

INFINITI QX56 2009 Factory Service Manual
RSU-10
< ON-VEHICLE REPAIR >
REAR SUSPENSION ASSEMBLY
Rear Load Leveling Air Suspension System
1. Seat belt latch anchor 2. Stabilizer bar bushing 3. Stabilizer bar clamp
4. Stabilizer bar 5. Connect

Page 3159 of 4171

INFINITI QX56 2009 Factory Service Manual
REAR SUSPENSION MEMBERRSU-11
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
REAR SUSPENSION MEMBER
Removal and InstallationINFOID:0000000005889869
Rear Suspens

Page 3160 of 4171

INFINITI QX56 2009 Factory Service Manual
RSU-12
< REMOVAL AND INSTALLATION >
REAR SUSPENSION MEMBER
Rear Load Leveling Air Suspension System
REMOVAL
1. If equipped with rear load leveling air suspension system, use CONSULT-III “EXHAUST SO

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