2006 INFINITI QX56 power steering

FAX-6
WHEEL HUB
Revision: November 20092006 QX56
4. Put alignment mark on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
5. On 4WD model, remove cotter pin, then remove lock nut from drive shaft using power tool. Then remove end of drive shaft from wheel hub and bearing assembly. Refer to FA X - 7 , "
Removal and Installation" .
6. Remove wheel sensor. Refer to BRC-64, "
Removal and Installation" .

Inspect the wheel sensor O-ring, replace the wheel sensor assembly if damaged.

Clean the wheel sensor hole and mounting surface with a suitable brake cleaner and clean lint-free
shop rag. Be careful that dirt and debris do not enter the axle bearing area.

Apply a coat of suitable grease to the wheel sensor O-ring and mounting hole.
CAUTION:
Do not pull on the wheel sensor harness.
7. Remove wheel hub and bearing assembly bolts using power tool.
8. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.

Use new bolts when installing the wheel hub and bearing assembly.

When installing disc rotor on wheel hub and bearing assembly,
position the disc rotor according to alignment mark.
(When not using the alignment mark, refer to BR-25, "
DISC
ROTOR INSPECTION" .)

When installing wheel and tire. Refer to WT-7, "Rotation" .
WDIA0044E
WDIA0044E

DRIVE SHAFTFAX-7
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FA X
Revision: November 2009 2006 QX56
DRIVE SHAFTPFP:39100
Removal and InstallationEDS003BP
REMOVAL
1. Remove wheel and tire using power tool.
2. Remove engine under cover using power tool.
3. Remove wheel sensor harness from mount on knuckle.
CAUTION:
Do not pull on wheel sensor harness.
4. Without disassembling the hydraulic lines, remove brake caliper using power tool. Reposition it aside with wire. Refer to BR-22, "
Removal and Installation of Brake Caliper and Disc Rotor" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
5. Remove coil spring and shock absorber assembly using power tool. Refer to FSU-10, "
Removal and
Installation" .
6. Separate upper link ball joint stud from steering knuckle using To o l .

Support lower link with jack.
7. Remove cotter pin, then remove drive shaft nut.
8. Remove drive shaft mounting bolts from front final drive.
9. Remove drive shaft from wheel hub and bearing assembly. CAUTION:

When removing drive shaft, do not apply an excessive
angle to drive shaft joint. Also be careful not to exces-
sively extend slide joint.
INSPECTION AFTER REMOVAL

Move joint up, down, left, right, and in axial direction. Check for any rough movement or significant loose-
ness.

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

If damaged, disassemble drive shaft to verify damage, and
repair or replace as necessary.
1. Cotter pin 2. Drive shaft nut3. Drive shaft
WDIA0329E
Tool number : ST29020001 (J-24319-01)
LEIA0095E
RAA0030D

FSU-10
COIL SPRING AND SHOCK ABSORBER
Revision: November 20092006 QX56
COIL SPRING AND SHOCK ABSORBERPFP:56210
Removal and InstallationEES0025A
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the shock absorber lower bolt using power tool.
3. Remove the three shock absorber upper nuts using power tool.
4. Remove the coil spring and shock absorber assembly.

Turn steering knuckle out to gain enough clearance for
removal.
INSTALLATION
Installation is in the reverse order of removal.

The lower seat step (2) in the shock absorber assembly (1)
faces outside of vehicle.
–Upper spring insulator (3)
–⇐: Front

Tighten all nuts and bolts to specification. Refer to FSU-5, "Com-
ponents" .

When installing wheel and tire, refer to WT-7, "Rotation" .
Disassembly and AssemblyEES0025B
DISASSEMBLY
1. Set the shock absorber in a vise, then loosen (without removing)
the piston rod lock nut as shown.
CAUTION:
Do not remove piston rod lock nut at this time.
2. Compress the spring using tool until the shock absorber mount- ing insulator can be turned by hand.
WARNING:
Make sure that the pawls of the two tools are firmly hooked
on the spring. The spring compressors must be tightened
alternately and evenly so as not to tilt the spring.
3. Remove the piston rod lock nut.

Discard the piston rod lock nut, use a new nut for assembly.
LEIA0093E
WEIA0155E
SSU002
SSU003

UPPER LINKFSU-13
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FSU
Revision: November 2009 2006 QX56
UPPER LINKPFP:54524
Removal and InstallationEES0025D
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the fender protector to access upper link. Refer to EI-23, "
Removal and Installation" .
3. Remove cotter pin and nut from upper link ball joint and discard the cotter pin.
4. Separate upper link ball joint stud from steering knuckle using To o l .

Support lower link with jack.
5. Remove upper link bolts and nuts, then remove upper link.
INSPECTION AFTER REMOVAL
Upper Link
Check for deformation and cracks. Replace if necessary.
Upper Link Ball Joint
Check for distortion and damage. Replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.

Tighten all nuts and bolts to specification. Refer to FSU-5, "Components" .
CAUTION:
Use a new cotter pin for installation of upper link ball joint nut.

When installing wheel and tire, refer to WT-7, "Rotation" .

After installation, check that the front wheel alignment is within specification. Refer to FSU-6, "Front
Wheel Alignment" .
Tool number : ST29020001 (J-24319-01)
LEIA0095E
LEIA0096E

FSU-14
LOWER LINK
Revision: November 20092006 QX56
LOWER LINKPFP:55020
Removal and InstallationEES0025E
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove lower shock absorber bolt.
3. Remove stabilizer bar connecting rod lower nut using power tool, then separate connecting rod from lower
link. Refer to FSU-12, "
Removal and Installation" .
4. Remove drive shaft nut, if equipped. Refer to FA X - 7 , "
Removal and Installation" .
5. Remove pinch bolt from steering knuckle using power tool, then separate lower link ball joint from steering knuckle.
6. Remove lower link cam bolts (1) and nuts, then the lower link (2).
NOTE:
Some vehicles may be equipped with straight (non-adjustable)
lover link bolts and washers. In order to adjust camber and
caster on these vehicles, first replace the lower link bolts and
washers with adjustable (cam) bolts and washers.
INSPECTION AFTER REMOVAL
Lower Link
Check for deformation and cracks. Replace if necessary.
Lower Link Bushing
Check for distortion and damage. Replace if necessary.
INSTALLATION
Installation is in the reverse order of removal.

Tighten all nuts and bolts to specification. Refer to FSU-5, "Components" .

When installing wheel and tire, refer to WT-7, "Rotation" .

After installation, check that the front wheel alignment is within specification. Refer to FSU-6, "Front
Wheel Alignment" .
LEIA0097E
WEIA0153E

KNUCKLEFSU-17
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FSU
Revision: November 2009 2006 QX56
KNUCKLEPFP:40014
On-Vehicle Inspection and ServiceEES0025H
Make sure the mounting conditions (looseness, backlash) of each component and component status (wear,
damage) are within specifications. Refer to FSU-20, "
Ball Joint" .
Removal and InstallationEES0025I
REMOVAL
1. Remove wheel hub and bearing assembly. Refer to FAX-5, "Removal and Installation" .

Disconnect wheel sensor harness connector. Do not remove wheel sensor from wheel hub and bearing
assembly for this procedure.
2. Remove steering outer socket from steering knuckle using Tool. CAUTION:

Be careful not to damage ball joint boot.

Temporarily tighten nut to prevent damage to threads and
to prevent Tool from coming off.
3. Remove the coil spring and shock absorber assembly using power tool. Refer to FSU-10, "
Removal and
Installation" .
4. Support lower link using a suitable jack.
5. Remove cotter pin and nut from upper link ball joint and discard the cotter pin.
1. Disc rotor 2. Wheel hub and bearing assembly 3. Wheel stud
4. Splash guard 5. Steering knuckle⇐Front
WDIA0328E
Tool number : HT72520000 (J-25730-A)
WGIA0130E

FSU-18
KNUCKLE
Revision: November 20092006 QX56
6. Separate upper link ball joint from steering knuckle using Tool.
7. Remove pinch bolt from steering knuckle using power tool, then
separate lower link ball joint from steering knuckle.
8. Remove steering knuckle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.

Perform ball joint inspection. Refer to FSU-15, "Inspection" .
INSTALLATION
Installation is in the reverse order of removal.

Refer to FSU-5, "Components" for tightening torques.
CAUTION:
Use a new cotter pin for installation of lock nut.

When installing disc rotor on wheel hub and bearing assembly,
align the marks.
NOTE:
When not using the alignment mark, refer to BR-21, "
FRONT
DISC BRAKE" .

When installing wheel and tire, refer to WT-7, "Rotation" .
Tool number : ST29020001 (J-24319-01)
LEIA0095E
LEIA0097E
WDIA0044E

GI-24
HOW TO USE THIS MANUAL
Revision: November 20092006 QX56
D3Drive range 3rd gear
D
4Drive range 4th gear
FR, RR Front, Rear LH, RH Left-Hand, Right-Hand M/T Manual Transaxle/TransmissionOD Overdrive
P/S Power Steering
SAE Society of Automotive Engineers, Inc.
SDS Service Data and Specifications SST Special Service Tools
2WD 2-Wheel Drive 2
22nd range 2nd gear
2
12nd range 1st gear
1
21st range 2nd gear
1
11st range 1st gear
ABBREVIATION DESCRIPTION