ISUZU TROOPER 1998 Service Repair Manual

7A±77 AUTOMATIC TRANSMISSION (4L30±E)
Main Data And Specification
General Specifications
Remarks
ModelTHM 4L30±E
EngineV6 3.2L 6VD1DOHC
TypeAutomatic four speed overdrive in
4th gear lock±up clutch torque con-
verter
Shift controlHydraulic
Control systemsShift patternElectronicControl systemsShift qualityElectronic
Lock±up clutchElectronic
1st2.856
2nd1.618
Gear ratio3rd1.000
4th (O/D)0.723
Reverse2.000
Gear setNoiseless, high torque capability
Oil usedNameATF DEXRON)±IIIOil usedQ'ty liter (qt)8.6 (9.1)
Torque converter2,100 + 150Stall speed (rpm)
Reverse clutchRC4
Second clutchC26Number of discsThird clutchC36Number of discs
Brake bandDouble wrap
Fourth clutchC42Number of discsOverrun clutchOC1Number of discs
OverdriveOFW10Number of rollers
PrincipalPFW26Number of sprags
Input sun gear30
Pinion gear19
Ravigneaux plan-Long pinion23g
etary gear setRing gear90
Long pinion19Number of teeth
Output sun gear46
Odi l
Sun gear31
Overdrive plane-
tary gear setPinion gear24tary gear set
Ring gear81

7A±78
AUTOMATIC TRANSMISSION (4L30±E)
Torque Specifications
E07RW080

7A±79 AUTOMATIC TRANSMISSION (4L30±E)
E07RW079

7A±80
AUTOMATIC TRANSMISSION (4L30±E)
E07RW047

7A±81 AUTOMATIC TRANSMISSION (4L30±E)
Special Tools
ILLUSTRATIONTOOL NO.
TOOL NAME
5±8840±0501±0
(J±23075)
Spring compressor (For
servo piston)
5±8840±2258±0
(J±38450±A)
Third clutch snap ring
compressor
5±8840±2259±0
(J±23075±12)
Third clutch spring
compressor adapter
(Use with
5±8840±0501±0
(J±23075))
5±8840±2260±0
(J±23084)
Third clutch piston
installer
5±8840±0195±0
(J±23327)
Third clutch spring
compressor
5±8850±2261±0
(J±23080±A)
Second clutch piston
installer
ILLUSTRATIONTOOL NO.
TOOL NAME
5±8840±2262±0
(J±23085±A)
Selective washer
gauging tool
5±8840±2263±0
(J±23327±90)
Fourth clutch spring
compressor (Use with
5±8840±0195±0
(J±23327))
5±8840±2264±0
(J±38553)
3/4 Accumulator piston
fitter
5±8840±2403±0
(J±41096)
Cover remover (Use
with 5±8840±2266±0
(J±38584))
5±8840±2266±0
(J±38584)
Slide hammer adapter
(Use with
5±8840±0019±0
(J±23907))
5±8840±2267±0
(J±38554)
Fourth clutch piston fitter

7A±82
AUTOMATIC TRANSMISSION (4L30±E)
ILLUSTRATIONTOOL NO.
TOOL NAME
5±8840±2268±0
(J±38588)
Guide pins; adapter
case to main case
5±8840±2269±0
(J±38555)
Overrun clutch piston
seal installer set
5±8840±2270±0
(J±3387±2)
Guide pins; gasket and
transfer plate to valve
body
5±8840±2271±0
(J±25022)
Turbine shaft puller (Use
with 5±8840±0618±0
(J±24773±1))
5±8840±0196±0
(J±23129)
Oil seal remover (Use
with 5±8840±2266±0
(J±23907) and
5±8840±0019±0
(J±38584))
5±8840±2272±0
(J±38557)
Oil pump centering tool
ILLUSTRATIONTOOL NO.
TOOL NAME
5±8840±2273±0
(J±23082±01)
Oil pump rotation tool
5±8840±0022±0
(J±25025±B)
Guide pins; valve body
to main case
5±8840±2274±0
(J±38428)
Servo piston fitter
5±8840±2275±0
(J±23327±91)
Overrun clutch spring
compressor
5±8840±2277±1
(J±38559±A)
3/4 Accumulator piston
cover compressor
5±8840±2278±0
(J±8763±02)
Holding fixture

7A±83 AUTOMATIC TRANSMISSION (4L30±E)
ILLUSTRATIONTOOL NO.
TOOL NAME
5±8840±2282±0
(J±36797)
A/T extension housing
oil seal installer (Inside)
5±8840±0003±0
(J±3289±20)
Holding fixture base
5±8840±0004±0
Pressure gauge
5±8840±0618±0
(J±24773±1)
End play fixture (Use
with 5±8840±2271±0
(J±25022))
5±8840±0019±0 &
5±8840±2000±0
(J±23907)
Slide hammer

7A±84
AUTOMATIC TRANSMISSION (4L30±E)
4L30±E Parts List
Case And Associated Parts
241RW014
Legend
(1) Torque Converter
(2) Screw, Seal Ring Assembly
(3) Seal Ring Assembly, Converter Housing
(4) Screw, Converter Housing/Main Case
(5) Screw, Converter Housing/Oil Pump
(6) Housing, Converter
(7) Plug, Converter Housing
(8) Seal, O±Ring
(9) Wear Plate, Oil Pump Body
(10) Pump Assembly, Oil
(11) Gasket
(12) Washer, Thrust Selective
(13) Ring, Snap
(14) Cover, 3±4 Accumulator Piston
(15) Seal, O±Ring, 3±4 Accumulator
(16) Spring, 3±4 Accumulator Piston(17) Pin, 3±4 Accumulator Piston
(18) Piston, 3±4 Accumulator
(19) Ring, 3±4, Accumulator Piston
(20) Case, Adapter
(22) Connector, Electrical/Adapter Case
(23) Screw, Pan
(27) Restrictor, Oil
(28) Gasket, Transfer Plate/Adapter
(29) Plate, Transfer Adapter/Center Support
(30) Support Assembly, Center
(31) Screw, Center Support
(32) Ring, Oil Seal
(33) Seal, O±Ring Main Case
(34) Fitting, Cooler
(35) Fitting Assembly, Cooler
(36) Case, Main
(37) Breather, Pipe

7A±85 AUTOMATIC TRANSMISSION (4L30±E)
(38) Seal, O±Ring
(39) Reservoir
(42) Gasket, Extension Case
(43) Extension Assembly
(44) Seal, O±Ring/Speed Sensor
(45) Sensor Assembly, Speed
(46) Screw, Speed Sensor
(50) Seal, Extension Assembly
(52) Screw, Extension/Main Case
(53) Spring, Parking Pawl Lock
(54) Pawl, Parking Lock
(55) Connector, Electrical/Main Case
(56) Actuator Assembly, Parking Lock
(57) Nut, Parking Lock Lever
(58) Link, Manual Valve
(59) Pin, Spring
(60) Lever, Parking Lock and Range Selector
(61) Shaft, Selector
(62) Seal, Selector Shaft
(63) Mode Switch Assembly
(64) Screw and Conical Washer Assembly
(65) Shield, Mode Switch
(67) Pan, Bottom/Adapter Case
(68) Gasket, Bottom Pan/Adapter Case
(69) Harness Assembly, Adapter Case
(70) Screw, Valve Body
(71) Valve Body Assembly, Adapter Case
(72) Gasket, Adapter Valve Body
(73) Plate, Adapter Valve Body/Transfer
(74) Pan, Bottom/Main Case(75) Gasket, Bottom Pan/Main Case
(76) Gasket, Oil Drain or Overfill Screw
(77) Screw, Oil Drain or Overfill
(78) Magnet, Chip Collector
(79) Filter Oil
(80) Harness Assembly, Main Case
(82) Roller and Spring Assembly, Manual Detent
(84) Valve Body Assembly, Main Case
(85) Ball, Check
(86) Gasket, Main V.B./Transfer Plate
(87) Plate, Main V.B./Transfer
(88) Gasket, Transfer/Main Case
(89) Screw, Transfer Plate on V.B.
(90) Screw, Servo Cover
(91) Cover, Servo Piston
(92) Gasket, Cover/Servo Piston
(93) Ring, Retaining Servo Piston
(94) Clip, Servo Piston
(95) Nut, Servo Screw
(96) Screw, Servo Piston
(97) Piston, Servo
(98) Seal, Ring/Servo Piston
(99) Spring, Cushion/Servo Piston
(100) Seat, Cushion Spring
(101) Sleeve, Servo Piston Adjust
(102) Rod, Apply/Servo Piston
(103) Spring, Return/Servo Piston
(104) Gasket, Adapter Case/Transfer Plate
(105) Powertrain Control Module
(106) Servo Piston Assembly

7A±86
AUTOMATIC TRANSMISSION (4L30±E)
Pump Assembly
241RS019
Legend
(201) Gear, Oil Pump Drive
(202) Gear, Oil Pump Driven
(203) Pin, Boost Valve Sleeve
(204) Sleeve, Boost Valve
(205) Valve, Boost
(206) Seat, Spring/Pressure Regulator Valve
(207) Spring, Pressure Regulator Valve
(208) Valve, Pressure Regulator(209) Pump Assembly, Oil
(210) Valve, Converter Clutch Control
(211) Spring, Converter Clutch Control Valve
(212) Plug, Converter Clutch Control Valve
(213) Pin, Spring
(214) Piston, Throttle Signal Accumulator
(215) Spring, Throttle Signal Accumulator
(216) Seat, Spring/Throttle Signal Accumulator
(217) Ring, Snap/Throttle Signal Accumulator