2000 MITSUBISHI MONTERO differential

AUTOMATIC TRANSMISSION -Troubleshooting AUTOMATIC TRANSMISSION -Troubleshooting 23-51
Inspection procedure 5
Does not move (forward or reverse)
Probable cause
If the vehicle does not move forward or reverse when the selector lever is
moved to any position while the engine is idling, thecause is probably a
problem with line pressure or a malfunction of the oil pumps and valve bodies in
the power train.DAbnormal line pressure
DMalfunction of power train components
DMalfunction of oil pump
DMalfunction of valve body
DMalfunction of engine-A/T-ECU <6G7>
DMalfunction of A/T-ECU<4M4>
LRefer to the Transmission Workshop Manual.
Fluid pressure test (Refer to P.23-106.)
DMeasure the fluid pressure at each element in 1st, 2nd
and reverse.
Standard value:Refer to P.23-106.OKCheck the power train components
L
DDisassemble the transmission and check the condition of
components such as the planetary carrier, output shaft and
differential.
NG
Replace the oil pumpassembly.
L
(The oilpump cannot be disassembled.)
Disassemble, clean and re-assemble the valve body.
L
DMake sure that the mounting bolts are not loose and that
the O-ring and valve body are notdamaged or positioned
incorrectly.
DIf the extent of thedamagelooks too bad for repairs to be
carried out, replace the valve body assembly.NG
NG
Check the trouble symptoms.
Replace the engine-A/T-ECU or A/T-ECU.
Inspection procedure 6
Engine stalls during shifting
Probable cause
If the enginestalls when the selector lever is moved from N to D or R while the
engine is idling, thecause is probably a malfunction of theenginesystem, DCC
solenoid valve, valve body, or torque converter (damper clutch).DMalfunction of enginesystem
DMalfunction of DCC solenoid valve
DMalfunction of valve body
DMalfunction of torque converter (malfunction of
damper clutch)
DMalfunction of engine-A/T-ECU <6G7>
DMalfunction of A/T-ECU<4M4>
LRefer to the Transmission Workshop Manual.
Engine system check
DControl system, ignition system, fuel system, vehicle bodyNG
Repair or replace
OK
Replace the DCC solenoid valve.
L
Disassemble, clean and re-assemble the valve body.
L
DMake sure that the mounting bolts are not loose and that
the O-ring and valve body are notdamaged or positioned
incorrectly.
DIf the extent of thedamagelooks too bad for repairs to be
carried out, replace the valve body assembly.NGReplace the torque converter assembly.
Check the trouble symptoms.
Replace the engine-A/T-ECU or A/T-ECU.NG


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AUTOMATIC TRANSMISSION -Troubleshooting II>23-88
Item
No.Normal condition Inspection conditions Check item
21Ignition switchIgnition switch: ONON
Ignition switch: OFFOFF
22Transmission identi-
ficationVehicles with A/TA/T
23Stop lamp switchIgnition switch: ONBrake pedal: DepressedON
Engine: StoppedBrake pedal: ReleasedOFF
24Transfer leverTransfer shift lever position: 2HON
switch 2HTransfer shift lever position: Other than the aboveOFF
25Transfer leverTransfer shift lever position: 4HON
switch 4HTransfer shift lever position: Other than the aboveOFF
26Transfer leverTransfer shift lever position: 4HLcON
switch 4HLcTransfer shift lever position: Other than the aboveOFF
27Transfer leverTransfer shift lever position: 4LLcON
switch 4LLcTransfer shift lever position: Other than the aboveOFF
28Engine identificationPetrol vehiclesPETROL
Diesel vehiclesDIESEL
30Freewheel engageDuring 2WDON
solenoid valveDuring 4WDOFF
31Inhibitor switch NSelector lever position: NON
Selector lever position: Other than the aboveOFF
32Inhibitor switch PSelector lever position: PON
Selector lever position: Other than the aboveOFF
332WD switchDriving conditions: 2WD (2H)ON
Driving conditions: Other than the aboveOFF
342WD/4WD switchDriving conditions: 2WD (2H), 4WD (4H)ON
Driving conditions: Other than the aboveOFF
354H switchDriving conditions: 4WD (4H), 4WD (4HLc)ON
Driving conditions: Other than the aboveOFF
36Center differentialDriving conditions: 4WD (4HLc), 4WD (4LLc)ON
lock switchDriving conditions: Other than the aboveOFF
374LLc switchDriving conditions: 4WD (4LLc)ON
Driving conditions: Other than the aboveOFF
38Freewheel engageDuring 2WDOFF
switchDuring 4WDON


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AUTOMATIC TRANSMISSION -Troubleshooting II>23-91
Ter-
minal
No.Standard value Inspection conditions Check item
40Center differential lock
lampDuring 4WD (4HLc or 4LLc)System voltage
41Solenoid valve A, BTransfer shift lever position: 2H1V
Transfer shift lever position: Other than 2HSystem voltage
42EarthAt all times0V
432WD switchTransfer shift lever position: 2H0V
Transfer shift lever position: Other than 2H10.5 V
442WD/4WD switchTransfer shift lever position: 2H or 4H0V
Transfer shift lever position: 4HLc or 4LLc10.5 V
454H switchTransfer shift lever position: 4H or 4HLc0V
Transfer shift lever position: 2H or 4LLc10.5 V
46Center differential lockTransfer shift lever position: 4HLc or 4LLc0V
switchTransfer shift lever position: 2H or 4H10.5 V
474HLc switchTransfer shift lever position: 4LLc0V
Transfer shift lever position: Other than 4LLc10.5 V
50Freewheel engage switchTransfer position: 2WD10.5 V
Transfer position: 4WD0V


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26-1
FRONT AXLE
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 4.................
LUBRICANTS 4..............................
SEALANTS 5................................
SPECIAL TOOLS 5..........................
ON-VEHICLE SERVICE 10...................
Wheel Bearing Backlash Check 10..............
Front Axle Total Backlash Check 10.............
Front Axle Gear Oil Level Check 11.............
Differential Carrier Oil Seal Replacement 11......
Solenoid Valve Operation Check 12..............
FRONT HUB AND KNUCKLE ASSEMBLY 13.
DRIVE SHAFT 16...........................
INNER SHAFT, HOUSING TUBE 24..........
FREEWHEEL CLUTCH ASSEMBLY,
DIFFERENTIAL CARRIER 28.................
FREEWHEEL CLUTCH ASSEMBLY 31.......
DIFFERENTIAL CARRIER 34.................
SOLENOID VALVE, VACUUMPIPE, VACUUM
TANK 49....................................
FRONT DIFFERENTIAL MOUNT 51..........


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FRONT AXLE -General Information26-2
GENERAL INFORMATION
The front axle consists of the front hubs, knuckles,
drive shaft, wheel bearings, ball joints, front
differential, and freewheel clutch.
The features are:
DThe structural method of press fitting unit
bearing into the front hub is applied.
DThe wheel bearing uses a taper roller unit
bearing. For vehicles with ABS, a rotor for
detecting the wheel speed is press-fitted to
the U.J. outer wheel.
DDrive shafts incorporate U.J.-B.J.-type constant
velocity ball joint has high power transmission
efficiency and reduces vibration and noise.NOTE
U.J. is an abbreviation of Under cut Joint.
DA vacuum-type freewheel clutch has been
adopted in the freewheel mechanism. Its
solenoid valve and actuator switch powertrain
between 2WD and 4WD.
DThe differential support method is a four-point
elastic support method which reduces vibration
and noise.
ItemSpecification
WheelWheel bearing typeTaper roller type unit bearing
bearingsBearing (outside diameter´inside diameter)
mm88´50
DriveJoint typeOutsideU.J.
shaftInsideD.O.J.
Shaft length
*1´Shaft diam-Right353´28
*2,361.5´26*3
eter mmLeft323´28
*2,330´26*3
InnerShaft length´Shaft diameter mm389.2´31.5
shaftBearing (outside diameter´inside diameter)
mm62´35
NOTE
*1:The shaft length indicates the length between the center points of each joint.
*2:4M41-M/T
*3:4D56, 4M41-A/T, 6G74 GDI
FRONT DIFFERENTIAL
ItemSpecification
Reduction gear typeHypoid gear
Reduction ratio4.900
*1, 3.917*2, 4.100*3, 4.300*4
Differential gear typeStraight bevel gear
NumberDrive gear49
*1,47*2, 41*3, 43*4
of teeth
Drive pinion10
*1,*3,*4, 12*2
Side gear14
Pinion gear10
NOTE
*1:4D56
*2:4M41-A/T
*3:4M41-M/T
*4:6G74 GDI


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FRONT AXLE -Service Specifications/Lubricants26-4
SERVICE SPECIFICATIONS
ItemStandard valueLimit
Wheel bearing axis backlash mm-0
Front axle total backlash mm-11
Solenoid valve resistanceW36 - 46-
Hub rotation starting torque N×m-1.75
Setting of D.O.J. boot length mm80±5-
Opening dimension of the spe-
cial tool (MB991561) mmWhen the B.J. boot band
(small) is crimped.2.9-
When the B.J. boot band
(big) is crimped.3.2-
Crimped width of the B.J. boot band mm2.4 - 2.8-
Crimped height of B. J. boot band (big) mm-9.5
Final drive gear backlash mm0.11 - 0.16-
Drive gear runout mm-0.05
Differential gear backlash mm0 - 0.0760.2
Drive pinion turning torque N×mWithout oil seal0.83 - 1.19-
With oil sealCompanion flange (oil seal contact
surface) with anti-rust oil
0.93 - 1.128-
Companion flange (oil seal contact
surface) with gear oil
0.97 - 1.32-
LUBRICANTS
ItemsSpecified lubricantsQuantity
Front differential gear oilHypoid gear oil API classification GL-5 or higher, SAE
viscosity No. 90, 80W1.2 L
D.O.J. boot greaseRepair kit grease4M41-M/T:135±10 g
4M41-A/T, 6G7:
100±10 g
U.J.boot greaseRepair kit grease4M41-M/T:180±10 g
4M41-A/T, 6G7:
135±10 g


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FRONT AXLE -Drive Shaft26-18
INSPECTION
DCheck the boot for damage or deterioration.
DCheck the ball joint for operating condition and excessive
looseness.
DCheck the splines for wear or damage.
DCheck the differential carrier oil seal (L.H.) for damage.


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27-1
REAR AXLE
CONTENTS
GENERAL INFORMATION 2...................
SERVICE SPECIFICATIONS 3.................
LUBRICANTS 3..............................
SEALANTS 4................................
SPECIAL TOOLS 5...........................
ON-VEHICLE SERVICE 8.....................
Rear Axle Total Backlash Check 8................
Gear Oil Level Check 8.........................
Wheel Bearing Axial Play Check 8................Rear Differential Lock Detection Switch Check 9....
Rear Differential Lock System Air Leakage
Check 9.......................................
REAR HUB ASSEMBLY 10...................
KNUCKLE 13...............................
DRIVE SHAFT 14............................
REAR DIFFERENTIAL LOCK 20..............
DIFFERENTIAL CARRIER 23.................


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