2007 INFINITI QX56 service

PR-2
< SERVICE INFORMATION >
PREPARATION
SERVICE INFORMATION
PREPARATION
Commercial Service ToolINFOID:0000000003532574
Tool nameDescription
Power tool Loosening bolts and nuts
PBIC0190E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPR-3
< SERVICE INFORMATION >
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532575
Use the chart below to help you find t he cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PR-4
(front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
FFD-6, "
NVH Troubleshooting Chart
"
RFD-7, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
RSU-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
BR-4, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Ste eri ng
Symptom Noise
×××××××××××
Shake ×××××××
Vibration ××××××××

PR-4
< SERVICE INFORMATION >
FRONT PROPELLER SHAFT
FRONT PROPELLER SHAFT
On-Vehicle ServiceINFOID:0000000003532576
PROPELLER SHAFT VIBRATION
NOTE:
If a vibration is present at high speed, inspect the propeller shaft run out first.
1. Measure the run out of the propeller shaft tube at several pointsby rotating the final drive companion flange with your hands.
2. If the run out still exceeds specifications, disconnect the propel- ler shaft at the final drive companion flange; then rotate the com-
panion flange 90 °, 180 °, 270 ° degrees and reconnect the
propeller shaft.
3. Check the run out again. If the run out still exceeds specifica- tions, replace the propeller shaft assembly.
4. After installation, check for vibration by driving the vehicle.
INSPECTION
Inspect the propeller shaft tube for dents or cracks. If damaged, replace the propeller shaft assembly.
Removal and InstallationINFOID:0000000003532577
Model 2F1310
REMOVAL
Propeller shaft run out limit : 0.6 mm (0.024 in) or less
SDIA1759E
WDIA0304E
1. Propeller shaft tube 2. Snap ring 3. Journal bearing
4. Journal 5. Flange yoke Front

FRONT PROPELLER SHAFTPR-5
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1. Put matching marks on the front propeller shaft flange yoke and the companion flange of the front final drive as shown.
CAUTION:
For matching marks, use pain t. Never damage the flange
yoke and companion flange of the front final drive.
2. Remove the bolts and then remove the front propeller shaft from the front final drive and transfer.
INSPECTION AFTER REMOVAL
• Inspect the propeller shaft run out. If run out exceeds the limit,replace the propeller shaft assembly.
• While holding the flange yoke on one side, check axial play of the joint as shown. If the journal axial play exceeds the specification,
repair as necessary .
• Check the propeller shaft for bend and damage. If damage is detected, replace the propeller shaft assembly.
INSTALLATION
Installation is in the reverse order of removal.
• After installation, check for vibration by driving the vehicle. Refer to PR-3, "
NVH Troubleshooting Chart".
CAUTION:
Do not reuse the bolts and nuts. Always install new ones.
Disassembly and AssemblyINFOID:0000000003532578
DISASSEMBLY
Journal
1. Put matching marks on the front propeller shaft and flange yoke
as shown.
CAUTION:
For matching marks, use paint. Never damage the front pro-
peller shaft or flange yoke.
SDIA2046E
Run out limit : 0.6 mm (0.024 in) or less
LDIA0118E
Journal axial play : 0.02 mm (0.0008 in) or less
LDIA0117E
SPD128

PR-6
< SERVICE INFORMATION >
FRONT PROPELLER SHAFT
2. Remove the snap ring.
3. Push out and remove the journal bearing by lightly tapping the
yoke with a hammer, taking care not to damage the journal or
yoke hole.
4. Remove the bearing at the opposite side in above operation.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
ASSEMBLY
Journal
1. Assemble the journal bearings. Apply multipurpose grease on
the bearing inner surface.
NOTE:
During assembly, use caution so that the needle bearings do not
fall down.
APD011
SPD732
SPD131
WPD019

FRONT PROPELLER SHAFT
PR-7
< SERVICE INFORMATION >
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2. Select snap rings that will provide the specified play in an axial
direction of the journal, and install them. Refer to PR-13, "
Snap
Ring".
NOTE:
Select snap rings with a difference in thickness at both sides
within 0.02 mm (0.0008 in).
3. Adjust the thrust clearance between the bearing and snap ring
to zero by tapping the yoke.
4. Make sure that the journal moves smoothly and is below the
joint flex effort specification.
APD012
SPD732
Joint flex effort : 1.96 N·m (0.20 kg-m, 17 in-lb) or less
LDIA0119E

PR-8
< SERVICE INFORMATION >
REAR PROPELLER SHAFT
REAR PROPELLER SHAFT
On-Vehicle ServiceINFOID:0000000003532579
PROPELLER SHAFT VIBRATION
NOTE:
If vibration is present at high speed, check propeller shaft run out first, then check mounting between propeller
shaft and companion flange.
1. Measure the run out of the propeller shaft tube at several points
by rotating the final drive companion flange with your hands.
2. If the run out still exceeds specifications, disconnect the propel-
ler shaft at the final drive companion flange; then rotate the com-
panion flange 90°, 180°, 270° degrees and reconnect propeller
shaft.
3. Check the run out again. If the run out still exceeds specifica-
tions, replace the propeller shaft assembly.
4. After installation, check for vibration by driving vehicle.
INSPECTION
Inspect the propeller shaft tube for dents or cracks. If damaged, replace the propeller shaft assembly.
Removal and InstallationINFOID:0000000003532580
Model 2S1410 2WD
Propeller shaft run out limit : 1.02 mm (0.0402 in) or less
SDIA1781E
AWDIA0490GB
1. Propeller shaft tube 2. Snap ring 3. Journal bearing
4. Sleeve yoke 5. Journal 6. Flange yoke
⇐Vehicle front

REAR PROPELLER SHAFT
PR-9
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Model 2S1410 4WD
REMOVAL
1. Move the A/T select lever to the N position and release the parking brake.
2. Put matching marks on the rear propeller shaft flange yoke and
the companion flange of the rear final drive as shown.
CAUTION:
For matching marks, use paint. Never damage the rear pro-
peller shaft flange yoke or the companion flange.
3. Remove the bolts, then remove the propeller shaft from the rear
final drive and A/T.
INSPECTION AFTER REMOVAL
• Inspect the propeller shaft run out. If run out exceeds the limit,
replace the propeller shaft assembly.
AWDIA0031ZZ
1. Propeller shaft tube 2. Snap ring 3. Journal bearing
4. Sleeve yoke 5. Journal 6. Flange yoke
⇐Vehicle front
WDIA0049E
Propeller shaft run out limit : 1.02 mm (0.0402 in) or
less
LDIA0121E