2001 INFINITI QX4 IDX

SBR451D
Checking Brake Fluid Level and LeaksNBMA0030If fluid level is extremely low, check brake system for leaks.
SBR389C
Checking Brake Lines and CablesNBMA0031Check brake fluid lines and parking brake cables for improper
attachment, leaks, chafing, abrasions and deterioration.
SMA260A
Checking Disc BrakeNBMA0032ROTORNBMA0032S01Check condition and thickness.
Standard thickness:
28 mm (1.10 in)
Minimum thickness:
26 mm (1.02 in)
SMA922A
CALIPERNBMA0032S02Check for leakage.
SMA847B
PADNBMA0032S03Check wear or damage.
Standard thickness:
11 mm (0.43 in)
Minimum thickness:
2 mm (0.08 in)
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CHASSIS AND BODY MAINTENANCE
Checking Brake Fluid Level and Leaks
MA-25

SST280B
Checking Power Steering Fluid and LinesNBMA0035CHECKING FLUID LEVELNBMA0035S01ICheck fluid level with engine off.
ICheck fluid level with dipstick on reservoir cap. Use ªHOTº
range at fluid temperatures of 50 to 80ÉC (122 to 176ÉF). Use
ªCOLDº range at fluid temperatures of 0 to 30ÉC (32 to 86ÉF).
CAUTION:
IDo not overfill.
IRecommended fluid is Genuine NISSAN PSF II or equiva-
lent. Refer to ªRECOMMENDED FLUIDS AND
LUBRICANTSº, MA-11.
SST118B
CHECKING LINESNBMA0035S02ICheck lines for improper attachment, leaks, cracks, damage,
loose connections, chafing and deterioration.
ICheck rack boots for accumulation of power steering fluid.
Lubricating Locks, Hinges and Hood LatchesNBMA0036
SMA897C
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CHASSIS AND BODY MAINTENANCE
Checking Power Steering Fluid and Lines
MA-27

Engine Maintenance
DRIVE BELT DEFLECTIONNBMA0038Unit: mm (in)
Used belt deflection
Deflection of new belt
Limit Deflection after adjustment
Alternator
Power steering oil pump
Fan7 (0.28)4 - 5 (0.16 - 0.20) 3.5 - 4.5 (0.138 - 0.177)
Air conditioner compressor 12 (0.47) 9 - 10 (0.35 - 0.39)8 - 9 (0.31 - 0.35)
Applied pushing force 98 N (10 kg, 22 lb)
DRIVE BELT TENSIONNBMA0042Unit: N (kg, lb)
Used belt
New belt
Limit After adjustment
Generator
Power steering oil pump
Fan294 (30, 66) 730 - 818 (74.4 - 83.5, 164 - 184) 838 - 926 (85.4 - 94.5, 188 - 208)
Air conditioner compressor 196 (20, 44) 348 - 436 (35.5 - 44.5, 78 - 98) 470 - 559 (47.9 - 57.0, 106 - 126)
SPARK PLUG TYPENBMA0039
Symbol Make
Standard type PLFR5A-11 NGK
Cold type PLFR6A-11 NGK
Hot type PLFR4A-11 NGK
Plug gap (Nominal) 1.1 mm (0.043 in)
Chassis and Body Maintenance
WHEEL BALANCENBMA0040
Maximum allowable unbalanceDynamic (At rim flange) g (oz) 10 (0.35) (one side)
Static g (oz) 20 (0.71)
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SERVICE DATA AND SPECIFICATIONS (SDS)
Engine Maintenance
MA-29

PROPELLER SHAFT &
DIFFERENTIAL CARRIER
SECTION
PD
CONTENTS
PROPELLER SHAFT......................................................3
Noise, Vibration and Harshness (NVH)
Troubleshooting ...........................................................3
NVH TROUBLESHOOTING CHART............................3
Components.................................................................4
FRONT PROPELLER SHAFT.....................................4
REAR PROPELLER SHAFT.......................................5
On-vehicle Service.......................................................6
PROPELLER SHAFT VIBRATION...............................6
APPEARANCE CHECKING........................................6
Removal and Installation .............................................6
Inspection.....................................................................7
Disassembly.................................................................7
CENTER BEARING - 2WD -.......................................7
JOURNAL (71H AND 80B)..........................................8
Assembly .....................................................................9
CENTER BEARING - 2WD -.......................................9
JOURNAL (71H AND 80B)..........................................9
Service Data and Specifications (SDS)..................... 11
GENERAL SPECIFICATIONS................................... 11
SERVICE DATA....................................................... 11
SNAP RING (80B).................................................... 11
SNAP RING (71H)...................................................12
R200A
FRONT FINAL DRIVE...................................................13
Preparation ................................................................13
SPECIAL SERVICE TOOLS......................................13
Noise, Vibration and Harshness (NVH)
Troubleshooting .........................................................15
On-vehicle Service.....................................................15
FRONT OIL SEAL REPLACEMENT...........................15
REAR COVER GASKET REPLACEMENT..................16
Components...............................................................17
Removal and Installation ...........................................18
REMOVAL...............................................................18
INSTALLATION........................................................18
Disassembly...............................................................18
PRE-INSPECTION...................................................18
FINAL DRIVE HOUSING..........................................19
DIFFERENTIAL CASE..............................................21
DIFFERENTIAL SIDE SHAFT...................................22
Inspection...................................................................23
RING GEAR AND DRIVE PINION.............................23
DIFFERENTIAL CASE ASSEMBLY...........................23
BEARING................................................................23
Adjustment .................................................................24
SIDE BEARING PRELOAD.......................................24
PINION GEAR HEIGHT AND PINION BEARING
PRELOAD
...............................................................25
TOOTH CONTACT...................................................29
Assembly ...................................................................30
DIFFERENTIAL SIDE SHAFT...................................30
DIFFERENTIAL CASE..............................................31
FINAL DRIVE HOUSING..........................................32
Service Data and Specifications (SDS).....................36
R200A.....................................................................36
H233B
REAR FINAL DRIVE.....................................................38
Preparation ................................................................38
SPECIAL SERVICE TOOLS......................................38
Noise, Vibration and Harshness (NVH)
Troubleshooting .........................................................40
On-vehicle Service.....................................................40
FRONT OIL SEAL REPLACEMENT...........................40
Components...............................................................42
Removal and Installation ...........................................43
REMOVAL...............................................................43
INSTALLATION........................................................43
Disassembly...............................................................43
PRE-INSPECTION...................................................43
DIFFERENTIAL CARRIER........................................44
DIFFERENTIAL CASE..............................................46
Inspection...................................................................47
RING GEAR AND DRIVE PINION.............................47
DIFFERENTIAL CASE ASSEMBLY...........................47
BEARING................................................................47
Limited Slip Differential ..............................................47
PREPARATION FOR DISASSEMBLY........................47
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Noise, Vibration and Harshness (NVH)
Troubleshooting
=NBPD0049NVH TROUBLESHOOTING CHARTNBPD0049S01Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
Reference pageÐ
Ð
Ð
Ð
PD-6
PD-6
PD-23, 47
PD-29, 56
PD-23, 47
PD-18, 43
Ð
Ð
Ð
Ð
AX-3
AX-3
SU-3
SU-3
SU-3
BR-6
ST-6
Possible cause and
SUSPECTED PARTS
Uneven rotation torque
Excessive center bearing axial end play
Center bearing mounting (insulator) cracks, damage or deterioration
Excessive joint angle
Rotation imbalance
Excessive runout
Rough gear tooth
Improper gear contact
Tooth surfaces worn
Incorrect backlash
Companion flange excessive runout
Improper gear oil
PROPELLER SHAFT
DIFFERENTIAL
DRIVE SHAFT
AXLE
SUSPENSION
TIRES
ROAD WHEEL
BRAKES
STEERING
SymptomPROPEL-
LER
SHAFTNoise´´´´´´ ´´´´´´´´
Shake´ ´´´´´´´
Vibration´´´´´´ ´´´´ ´
DIFFER-
ENTIALNoise´´´´´´´ ´´´´´´´
´: Applicable
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PROPELLER SHAFT
Noise, Vibration and Harshness (NVH) Troubleshooting
PD-3

REAR PROPELLER SHAFTNBPD0002S02
SPD522A
SPD468AA
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PROPELLER SHAFT
Components (Cont'd)
PD-5

SPD359
IDraw out propeller shaft from transmission and plug up rear
end of transmission rear extension housing.
SPD106
InspectionNBPD0006IInspect propeller shaft runout. If runout exceeds specifications,
replace propeller shaft assembly.
Runout limit: 0.6 mm (0.024 in)
SPD874
IIf the play exceeds specifications, replace propeller shaft
assembly.
Journal axial play:
0.02 mm (0.0008 in) or less
SPD109
DisassemblyNBPD0007CENTER BEARING Ð 2WD ÐNBPD0007S031. Put match marks on flanges, and separate 2nd tube from 1st
tube.
SPD110
2. Put match marks on the flange and shaft.
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PROPELLER SHAFT
Removal and Installation (Cont'd)
PD-7

SPD131
4. Remove bearing at opposite side in above operation.
Put marks on disassembled parts so that they can be rein-
stalled in their original positions from which they were
removed.
SPD114
AssemblyNBPD0008CENTER BEARING Ð 2WD ÐNBPD0008S03IWhen installing center bearing, position the ªFº mark on cen-
ter bearing toward front of vehicle.
IApply a coat of multi-purpose lithium grease containing
molybdenum disulfide to the end face of the center bear-
ing and both sides of the washer.
SPD117
IStake the nut. Always use new one.
IAlign match marks when assembling tubes.
SPD133
JOURNAL (71H AND 80B)NBPD0008S021. Assemble journal bearing. Apply recommended multi-purpose
grease on bearing inner surface.
When assembling, be careful that needle bearing does not fall
down.
SPD134
2. Select snap ring that will provide specified play in axial direc-
tion of journal, and install them.
Refer to SDS, PD-11.
Select snap rings with a difference in thickness at both sides
within 0.06 mm (0.0024 in).
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PROPELLER SHAFT
Disassembly (Cont'd)
PD-9