2007 INFINITI QX56 suspension

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Page 1905 of 3061

INFINITI QX56 2007 Factory Service Manual FFD-6
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532587
Use the chart b

Page 1947 of 3061

INFINITI QX56 2007 Factory Service Manual FSU-1
SUSPENSION
C
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M
SECTION FSU
A
B
FSU
N
O
PCONTENTS
FRONT SUSPENSION
SERVICE INFORMATION ............................2
PRECAUTIONS .................................................

FSU-1
SUSPENSION
C
D
F
G
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K
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SECTION FSU
A
B
FSU
N
O
PCONTENTS
FRONT SUSPENSION
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution .................................................................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
Component ................................................................5
ON-VEHICLE SERVICE ......................................6
Front Suspension Parts .............................................6
Front Wheel Alignment ..............................................6
COIL SPRING AND SHOCK ABSORBER ........10
Removal and Installation .........................................10
Disassembly and Assembly ....................................10
STABILIZER BAR ..............................................12
Removal and Installation .........................................12
UPPER LINK .....................................................13
Removal and Installation .........................................13
LOWER LINK ....................................................14
Removal and Installation .........................................14
UPPER BALL JOINT AND LOWER BALL
JOINT ................................................................
15
Removal and Installation .........................................15
Inspection ................................................................15
KNUCKLE .........................................................17
On-Vehicle Inspection and Service .........................17
Removal and Installation .........................................17
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
19
General Specification ..............................................19
Spring Free Height ..................................................19
Wheel Alignment (Unladen*1) *6 .............................19
Ball Joint ..................................................................20
Wheelarch Height (Unladen*1) ................................20

Page 1948 of 3061

INFINITI QX56 2007 Factory Service Manual FSU-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
PrecautionINFOID:0000000003532631
• When installing the rubber bushings, the final tightening must be done under unladen con

Page 1950 of 3061

INFINITI QX56 2007 Factory Service Manual FSU-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532634
Use the chart b

Page 1951 of 3061

INFINITI QX56 2007 Factory Service Manual FRONT SUSPENSION ASSEMBLY
FSU-5
< SERVICE INFORMATION >
C
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MA
B
FSU
N
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P
FRONT SUSPENSION ASSEMBLY
ComponentINFOID:0000000003532635
1. Dust cover 2. Shock absorber 3. Upper link
4. Ste

Page 1952 of 3061

INFINITI QX56 2007 Factory Service Manual FSU-6
< SERVICE INFORMATION >
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE
Front Suspension PartsINFOID:0000000003532636
Check front suspension parts for excessive play, cracks, wear and
other damage.
• Sh

FSU-6
< SERVICE INFORMATION >
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE
Front Suspension PartsINFOID:0000000003532636
Check front suspension parts for excessive play, cracks, wear and
other damage.
• Shake each front wheel to check for excessive play.
If looseness is noted, inspect wheel bearing end play, then check
ball joint end play. Refer to FA X - 5 , "
On-Vehicle Inspection and Ser-
vice" and FSU-15, "Inspection".
• Make sure that the cotter pin is inserted (4WD only).
• Retighten all nuts and bolts to the specified torque.
• Check shock absorber for oil leakage and other damage.
• Check suspension ball joint for grease leakage and ball joint dust
cover for cracks and other damage.
Front Wheel AlignmentINFOID:0000000003532637
PRELIMINARY INSPECTION
WARNING:
Always adjust the alignment with the vehicle on a flat surface.
NOTE:
If alignment is out of specification, inspect and replace any damaged or worn suspension parts before making
any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. “Unladen conditions”
means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in
their designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for run out and damage. Refer to WT-5, "
Inspection".
4. Check the wheel bearing axial end play. Refer to FA X - 5 , "
On-Vehicle Inspection and Service".
5. Check the shock absorbers for leaks or damage.
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the rear suspension member for any damage.
8. Check the vehicle height. Refer to FSU-20, "
Wheelarch Height (Unladen*1)".
• Verify the level using Consult-II memory register 1103 and set to 0 ± 10 mm (0 ± 0.39 in) as necessary.
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.
• This type of alignment is recommended 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 capable 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.Suspension component torques : Refer to FSU-5,
"Component" . SMA525A
SFA392B

Page 1955 of 3061

INFINITI QX56 2007 Factory Service Manual ON-VEHICLE SERVICE
FSU-9
< SERVICE INFORMATION >
C
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MA
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FSU
N
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P
- Steering column
- Front suspension components
If found that they are worn or damaged, replace them with new ones.

Page 1965 of 3061

INFINITI QX56 2007 Factory Service Manual SERVICE DATA AND SPECIFICATIONS (SDS)
FSU-19
< SERVICE INFORMATION >
C
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MA
B
FSU
N
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P
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000003532647
Spring Free Hei

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