Isuzu Trooper (1998-2002 year). Manual — part 677
7A–92
AUTOMATIC TRANSMISSION (4L30–E)
(646) Gear Assembly, Input Sun
(647) Race Assembly, Sprag
(648) Ring, Retaining/Sprag
(649) Ring, Retaining
(650) Cage Assembly, Sprag
(651) Bearing, Output Shaft/Input Sun
(652) Washer, Output Shaft/Input Sun
(653) Carrier Assembly, Planetary
(658) Gear, Reaction Sun
(659) Drum, Reaction Sun
(664) Band Assembly, Brake
(667) Seal, Ring/Wheel Parking Lock
(668) Wheel, Parking Lock
(672) Wheel, Speed
(673) Ring, Retaining
(675) Bearing, Thrust Assembly
Center Support Assembly
241RS010
Legend
(701) Center Support
(702) Retainer Plate
(703) Plug, Lockout
(704) Spring, Overrun Lockout
(705) Valve, Overrun Lockout
7A–1
AUTOMATIC TRANSMISSION (4L30–E)
TRANSMISSION
CONTENTS
Automatic Transmission (4L30–E)
7A
. . . . . . . . .
Transmission Control System (4L30–E)
7A1
. . . .
Manual Transmission
7B
. . . . . . . . . . . . . . . . . . . .
Clutch
7C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AUTOMATIC TRANSMISSION (4L30–E)
CONTENTS
Service Precaution
7A–3
. . . . . . . . . . . . . . . . . . . . . .
Construction
7A–3
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Range Reference Chart
7A–4
. . . . . . . . . . . . . . . . . .
Normal Operation Of 2002 4L30–E
Transmission
7A–5
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis
7A–5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Information
7A–5
. . . . . . . . . . . . . . . . . . . . . . .
General Diagnosis Procedure
7A–8
. . . . . . . . . . . . .
Preliminary Inspection Chart
7A–9
. . . . . . . . . . . . . .
Checking Transmission Fluid Level and
Condition
7A–10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Driving
7A–11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical / Hydraulic Diagnosis Check Trans
Indicator Chart
7A–12
. . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanical / Hydraulic Diagnosis Symptoms
Index
7A–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stall Test
7A–23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Pressure Test
7A–23
. . . . . . . . . . . . . . . . . . . . . .
Shift Speed Chart
7A–24
. . . . . . . . . . . . . . . . . . . . . . .
Lockup Speed Chart
7A–26
. . . . . . . . . . . . . . . . . . . . .
Changing Transmission Fluid
7A–27
. . . . . . . . . . . . .
Selector Lever
7A–27
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection
7A–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal
7A–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–28
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Switch
7A–29
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal
7A–29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–29
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission (With Transfer Case)
7A–31
. . . . . . . .
Transmission And Associated Parts
7A–31
. . . . . .
Removal
7A–32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–34
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Solenoid (Main Case Valve Body)
7A–39
. . . . . . . . .
Removal
7A–39
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–39
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Solenoid (Adapter Case Valve Body)
7A–40
. . . . . . .
Removal
7A–40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–40
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Body Assembly (Main Case)
7A–41
. . . . . . . .
Removal
7A–41
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–41
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Body Assembly (Adapter Case)
7A–42
. . . . . .
Removal
7A–42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–42
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powertrain Control Module (PCM)
7A–42
. . . . . . . . .
Removal
7A–42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–42
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speed Sensor (Extension Housing)
7A–43
. . . . . . . .
Removal
7A–43
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–43
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission Oil Temperature Sensor
(Main Case)
7A–44
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal
7A–44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–44
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Oil Seal (Converter Housing)
7A–45
. . . . . . . .
Removal
7A–45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–45
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Oil Seal (Extension Housing)
7A–45
. . . . . . . . .
Removal
7A–45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
7A–45
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmission (4L30–E)
7A–46
. . . . . . . . . . . . . . . . . .
Disassembly
7A–46
. . . . . . . . . . . . . . . . . . . . . . . . . .
Reassembly
7A–50
. . . . . . . . . . . . . . . . . . . . . . . . . .
Converter Housing And Oil Pump Assembly
7A–60
Disassembled View
7A–60
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–60
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–60
. . . . . . . . . . . . . . . . . .
Reassembly
7A–60
. . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump
7A–61
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View
7A–61
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–61
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–62
. . . . . . . . . . . . . . . . . .
Reassembly
7A–62
. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Case Valve Body
7A–63
. . . . . . . . . . . . . . . . . . .
Disassembled View
7A–63
. . . . . . . . . . . . . . . . . . . .
7A–2
AUTOMATIC TRANSMISSION (4L30–E)
Disassembly
7A–63
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–64
. . . . . . . . . . . . . . . . . .
Reassembly
7A–64
. . . . . . . . . . . . . . . . . . . . . . . . . .
Adapter Case Valve Body
7A–65
. . . . . . . . . . . . . . . .
Disassembled View
7A–65
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–65
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–65
. . . . . . . . . . . . . . . . . .
Reassembly
7A–65
. . . . . . . . . . . . . . . . . . . . . . . . . .
Third Clutch And Sprag Unit
7A–67
. . . . . . . . . . . . . .
Disassembled View
7A–67
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–67
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–67
. . . . . . . . . . . . . . . . . .
Reassembly
7A–68
. . . . . . . . . . . . . . . . . . . . . . . . . .
Third Clutch
7A–69
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View
7A–69
. . . . . . . . . . . . . . . . . . . .
Disassemble
7A–69
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–69
. . . . . . . . . . . . . . . . . .
Reassembly
7A–69
. . . . . . . . . . . . . . . . . . . . . . . . . .
Sprag Unit
7A–71
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View
7A–71
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–71
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–71
. . . . . . . . . . . . . . . . . .
Reassembly
7A–71
. . . . . . . . . . . . . . . . . . . . . . . . . .
Second Clutch
7A–72
. . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View
7A–72
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–72
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–73
. . . . . . . . . . . . . . . . . .
Reassembly
7A–73
. . . . . . . . . . . . . . . . . . . . . . . . . .
3–4 Accumulator Piston
7A–74
. . . . . . . . . . . . . . . . . .
Disassembled View
7A–74
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–74
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–75
. . . . . . . . . . . . . . . . . .
Reassembly
7A–75
. . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Clutch Piston And Center Support
7A–76
.
Disassembled View
7A–76
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–77
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–77
. . . . . . . . . . . . . . . . . .
Reassembly
7A–77
. . . . . . . . . . . . . . . . . . . . . . . . . .
Overrun Clutch And Turbine Shaft
7A–78
. . . . . . . . .
Disassembled View
7A–78
. . . . . . . . . . . . . . . . . . . .
Disassembly
7A–79
. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection And Repair
7A–79
. . . . . . . . . . . . . . . . . .
Reassembly
7A–79
. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data And Specification
7A–81
. . . . . . . . . . . . . .
General Specifications
7A–81
. . . . . . . . . . . . . . . . .
Torque Specifications
7A–82
. . . . . . . . . . . . . . . . . .
Special Tools
7A–85
. . . . . . . . . . . . . . . . . . . . . . . . . . .
4L30–E Parts List
7A–88
. . . . . . . . . . . . . . . . . . . . . . .
7A–3
AUTOMATIC TRANSMISSION (4L30–E)
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
Construction
A07RS001
Legend
(1) Torque Converter Clutch (TCC)
(2) Fourth Clutch (C4)
(3) Overrun Clutch (OC)
(4) Overdrive Unit
(5) Reverse Clutch (RC)
(6) Second Clutch (C2)
(7) Third Clutch (C3)
(8) Ravigneaux Planetary Gear Set
(9) Brake Band (B)
(10) Overdrive Free Wheel (One Way Clutch)
(OFW)
(11) Principle Sprag Assembly (One Way Clutch)
(PFW)
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