2001 INFINITI QX4 engine

SAT017B
IWhen connecting torque converter to transmission, measure
distance ªAº to be certain that they are correctly assembled.
Distance ªAº:
25.0 mm (0.984 in) or more
SAT148K
IInstall converter to drive plate.
IAfter converter is installed to drive plate, rotate crankshaft
several turns and check to be sure that transmission
rotates freely without binding.
SAT149K
ITighten bolts securing transmission.
Bolt No.Tightening torque
N´m (kg-m, ft-lb)Bolt length ªº
mm (in)
1 70 - 80 (7.1 - 8.2, 52 - 59) 65 (2.56)
2 70 - 80 (7.1 - 8.2, 52 - 59) 55 (2.17)
3 29 - 39 (3.0 - 4.0, 22 - 29) 40 (1.57)
IReinstall any part removed.
SAT638A
ICheck fluid level in transmission.
IMove selector lever through all positions to be sure that trans-
mission operates correctly.
With parking brake applied, rotate engine at idling. Move selec-
tor lever through ªNº to ªDº, to ª2º, to ª1º and to ªRº positions.
A slight shock should be felt by hand gripping selector each
time transmission is shifted.
IPerform road test. Refer to ªROAD TESTº, AT-63.
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REMOVAL AND INSTALLATION
Installation (Cont'd)
AT-279

General SpecificationsNBAT0160
Applied modelVQ35DE engine
2WD 4WD
Automatic transmission model RE4R01A
Transmission model code number 4EX16 4EX17
Stall torque ratio2.0:1
Transmission gear ratio1st 2.785
2nd 1.545
Top 1.000
OD 0.694
Reverse 2.272
Recommended fluidNissan Matic ªDº (Continental U.S. and Alaska) or Genuine Nissan Automatic Trans-
mission Fluid (Canada)*1
Fluid capacity8.5(9 US qt, 7-1/2 Imp qt)
*1: Refer to MA-11, ªFluids and Lubricantsº.
Shift ScheduleNBAT0178VEHICLE SPEED WHEN SHIFTING GEARS THROTTLE POSITIONNBAT0178S01
Throttle positionVehicle speed km/h (MPH)
D
1,D2D2,D3D3,D4D4,D3D3,D2D2,D112,11
Full throttle55-59
(34 - 37)105 - 113
(65 - 70)174 - 184
(108 - 114)170 - 180
(106 - 112)102 - 110
(63 - 68)43-47
(27 - 29)43-47
(27 - 29)
Half throttle37-41
(23 - 25)71-79
(44 - 49)129 - 139
(80 - 86)81-91
(50 - 57)33-41
(21 - 25)12-16
(7 - 10)43-47
(27 - 29)
VEHICLE SPEED WHEN PERFORMING AND RELEASING LOCK-UPNBAT0178S02
Throttle positionOverdrive control switch [Shift posi-
tion]Vehicle speed km/h (MPH)
Lock-up ªONº Lock-up ªOFFº
Full throttleON [D
4] 174 - 184 (108 - 114) 170 - 180 (106 - 112)
OFF [D
3] 104 - 114 (65 - 71) 101 - 111 (63 - 69)
Half throttleON [D
4] 151 - 161 (94 - 100) 106 - 116 (66 - 72)
OFF [D
3] 85-95(53-59) 82-92(51-57)
Stall RevolutionNBAT0163
Stall revolution rpm2,440 - 2,640
Line PressureNBAT0164
Engine speed
rpmLine pressure kPa (kg/cm2, psi)
D, 2 and 1 positions R position
Idle 422 - 461 (4.3 - 4.7, 61 - 67) 667 - 706 (6.8 - 7.2, 97 - 102)
Stall 1,020 - 1,098 (10.4 - 11.2, 148 - 159) 1,422 - 1,500 (14.5 - 15.3, 206 - 218)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
AT-356

SBR686C
Precautions
PRECAUTIONSNBAX0001IWhen installing rubber parts, final tightening must be car-
ried out under unladen condition* with tires on ground.
*Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
IUse flare nut wrench when removing and installing brake
tubes.
IAfter installing removed suspension parts, check wheel
alignment and adjust if necessary.
IAlways torque brake lines when installing.
Preparation
SPECIAL SERVICE TOOLSNBAX0002The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
ST29020001
(J24319-01)
Ball joint remover
NT694
Removing tie-rod outer end and lower ball
joint
a: 34 mm (1.34 in)
b: 6.5 mm (0.256 in)
c: 61.5 mm (2.421 in)
KV401021S0
(Ð)
Bearing race drift
NT153
Installing wheel bearing outer race
KV40105400
(J36001)
Wheel bearing lock nut
wrench
NT154
Removing and installing wheel bearing lock
nut
COMMERCIAL SERVICE TOOLSNBAX0003
Tool name Description
1 Flare nut crowfoot
2 Torque wrench
NT360
Removing and installing each brake piping
a: 10 mm (0.39 in)
Hub cap drift
NT115
Installing hub cap
a: 57 mm (2.24 in) dia.
b: 46 mm (1.81 in) dia.
FRONT AXLE
Precautions
AX-2

SBR686C
Precautions
PRECAUTIONSNBAX0023IWhen installing rubber parts, final tightening must be car-
ried out under unladen condition* with tires on ground.
*Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
IUse flare nut wrench when removing and installing brake
tubes.
IAfter installing removed suspension parts, check wheel
alignment and adjust if necessary.
IAlways torque brake lines when installing.
Preparation
SPECIAL SERVICE TOOLSNBAX0024The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
KV40101000
(J25604-01)
Axle stand
NT159
Removing rear axle shaft
ST36230000
(J25840-A)
Sliding hammer
NT126
Removing rear axle shaft
ST38020000
(Ð)
Bearing lock nut wrench
NT160
Removing wheel bearing lock nut
HT72480000 or
HT72210000
(J25852-B)
Rear axle shaft bearing
puller
NT161
Removing wheel bearing
ST37840000
(Ð)
Rear axle shaft guide
NT162
Installing rear axle shaft
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REAR AXLE
Precautions
AX-17

SBR451D
Checking Brake Fluid LevelNBBR0006ICheck fluid level in reservoir tank. It should be between Max
and Min lines on reservoir tank.
IIf fluid level is extremely low, check brake system.
IIf the brake warning lamp comes on, check brake fluid level
switch and parking brake switch.
SBR389C
Checking Brake LineNBBR0007CAUTION:
If leakage occurs around joints, retighten or, if necessary,
replace damaged parts.
1. Check brake lines (tubes and hoses) for cracks, deterioration
or other damage. Replace any damaged parts.
2. Check for oil leakage by fully depressing brake pedal while
engine is running.
SBR419C
Changing Brake FluidNBBR0008CAUTION:
IRefill with new brake fluid ªDOT 3º.
IAlways keep fluid level higher than minimum line on res-
ervoir tank.
INever reuse drained brake fluid.
IBe careful not to splash brake fluid on painted areas; it
may cause paint damage. If brake fluid is splashed on
painted areas, wash it away with water immediately.
1. Clean inside of reservoir tank, and refill with new brake fluid.
2. Connect a vinyl tube to each air bleeder valve.
3. Drain brake fluid from each air bleeder valve by depressing
brake pedal.
4. Refill until brake fluid comes out of each air bleeder valve.
Use same procedure as in bleeding hydraulic system to refill
brake fluid.
Refer to ªBleeding Brake Systemº, BR-8.
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ON-VEHICLE SERVICE
Checking Brake Fluid Level
BR-7

InspectionNBBR0014CAUTION:
ICarefully monitor brake fluid level at master cylinder.
IUse new brake fluid ªDOT 3º.
IBe careful not to splash brake fluid on painted areas; it
may cause paint damage. If brake fluid is splashed on
paint areas, wash it away with water immediately.
IDepress pedal slowly when raising front brake pressure.
ICheck rear brake pressure 2 seconds after front brake
pressure reaches specified value.
IDisconnect harness connectors from ABS actuator and
electric unit before checking.
SBR212E
1. Park vehicle on a level surface with vehicle unloaded*.
* Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
2. Press a lever to the stopper bolt, then check length ªBº as fol-
lows:
Length ªBº Reference (Length ªLº)
207.7 mm (8.18 in) 217.3 mm (8.56 in)
3. If length ªBº is not within specification, adjust sensor spring
length.
Removal and InstallationNBBR0015CAUTION:
IRefill with new brake fluid ªDOT 3º.
IBe careful not to splash brake fluid on painted areas; it
may cause paint damage. If brake fluid is splashed on
painted areas, wash it away with water immediately.
IDo not reuse Load Sensing Valve once it is disassembled.
IReplace damaged Load Sensing Valve as an assembly.
IWhen disassembling, apply multi-purpose grease to all
rubbing areas.
LOAD SENSING VALVE (4WD)
Inspection
BR-12

Removal and InstallationNBBR0016
SBR520E
InspectionNBBR0017Check brake pedal for following items.
IBrake pedal bend
IClevis pin deformation
ICrack of any welded portion
ICrack or deformation of clevis pin stopper
SBR463CC
AdjustmentNBBR0018Check brake pedal free height from metal panel.
H: Free height
Refer to SDS (BR-83).
D: Depressed height
Refer to SDS (BR-83).
Under force of 490 N (50 kg, 110 lb) with engine run-
ning
C
1,C2: Clearance between pedal stopper and
threaded end of stop lamp switch and ASCD switch
0.3 - 1.0 mm (0.012 - 0.039 in)
A: Pedal free play
1-3mm(0.04 - 0.12 in)
If necessary, adjust brake pedal free height.
BRAKE PEDAL AND BRACKET
Removal and Installation
BR-14

SBR824B
1. Loosen lock nut and adjust pedal free height by turning brake
booster input rod. Then tighten lock nut.
Make sure that tip of input rod stays inside.
2. Adjust clearance ªC
1º and ªC2º with stop lamp switch and
ASCD switch respectively. Then tighten lock nuts.
3. Check pedal free play.
Make sure that stop lamp is off when pedal is released.
4. Check brake pedal's depressed height while engine is running.
If depressed height is below specified value, check brake sys-
tem for leaks, accumulation of air or any damage to compo-
nents (master cylinder, wheel cylinder, etc.). Then make nec-
essary repairs.
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BRAKE PEDAL AND BRACKET
Adjustment (Cont'd)
BR-15