manual transmission ISUZU TROOPER 1998 Service Repair Manual

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THIS MALUAL INCLUDES THE FOLLOWING SECTIONS:
SECTION No. CONTRNTS
7A AUTOMATIC TRANSMISSION (4L30-E)
7A1 TRANSMISSION CONTROL SYSTEM (4L30-E)
7B MANUAL TRANSMISSION (AR-5)
7B MANUAL TRANSMISSION (MUA)
7C CLUTCH

GENERAL INFORMATION 0AÐ7
TRANSMISSION SERIAL NUMBER
Manual: Stamped on the left side of the transmission
intermediate plate.
Automatic: Stamped on the identification plate, located on
the left side of the transmission above the
mode switch.
96
0000 000018PART No.
SERIAL No. SALHYDRAMATIC
STRASBOURGMADE IN FRANCEG 20272
FP
SERVICE PARTS IDENTIFICATION PLATE
The Vehicle Information Plate (Service Parts ID plate) is
provided on all vehicle models.
It is located on the center dash wall inside the engine
compartment. The plate lists the VIN (Vehicle Identification
Number), paint information and all production options and
special equipment on the vehicle when it was shipped
from the factory.
Service parts ID plateISUZU MOTORS L T D. JAPAN
V.I.N.
M.D.
ENGINE
GRADETRANS.
TIRE
BODY TYPE
B. COLOR/TRIM
OPTION
905RW015
905RW018
905RW007

ABBREVIATIONS CHARTS
LIST OF AUTOMOTIVE ABBREVIATIONS WHICH MAY BE USED IN THIS MANUAL
A Ð Ampere(s)
ABS Ð Antilock Brake System
A/C Ð Air Conditioning
ACCEL Ð Accelerator
ACC Ð Accessary
Adj Ð Adjust
A/F Ð Air Fuel Ratio
AIR Ð Air Injection Reaction System
ALDL Ð Assembly Line Diagnostic Link
Alt Ð Altitude
AMP Ð Ampere(s)
ANT Ð Antenna
APS Ð Absolute Pressure Sensor
ASM Ð Assembly
A/T Ð Automatic Transmission/Transaxle
ATDC Ð After Top Dead Center
Auth Ð Authority
Auto Ð Automatic
BARO Ð Barometic
Bat Ð Battery
Bat+ Ð Battery Positive Terminal
Bbl Ð Barrel
BCM Ð Body Control Module
BHP Ð Brake Horsepower
BP Ð Back Pressure
BTDC Ð Before Top Dead Center
¡C ÐDegrees Celsius
Cat. Conv. Ð Catalytic Converter
cc Ð Cubic Centimeter
CCC Ð Computer Command Control
CCOT Ð Cycling Clutch Orifice Tube
CCP Ð Controlled Canister Purge
CID Ð Cubic Inch Displacement
CL Ð Closed Loop
CLCC Ð Closed Loop Carburetor Control
CO Ð Carbon Monoxide
Coax Ð Coaxial
Conn Ð Connector
Conv Ð Converter
CP Ð Canister Purge
CPS Ð Central Power Supply
Crank Ð Crankshaft
CTS Ð Coolant Temperature Sensor
Cu.In. Ð Cubic Inch
CV Ð Constant Velocity
Cyl Ð Cylinder(s)
C
3I Ð Computer Controlled Coil Ignition
DBM Ð Dual Bed Monolith
Diff Ð Differential
DIS Ð Direct Ignition System
Dist ÐDistributor
DOHC Ð Double Overhead Camshaft
DVM Ð Digital Voltmeter (10 meg.)
DVOM Ð Digital Volt Ohmmeter
DVDV Ð Differential Vacuum Delay Valve
EAC ÐElectric Air Control
EAS Ð Electric Air Switching
EBCM Ð Electronic Brake Control Module
ECC Ð Electronic Climate Control
ECM Ð Electronic Control Module
ECU Ð Electronic Control Unit
Ð Engine Calibration Unit (PROM)
EECS Ð Evaporative Emission Control System
EFE Ð Early Fuel Evaporation
EFI Ð Electronic Fuel Injection
EGR Ð Exhaust Gas Recirculation
EGR/TVS Ð Exhaust Gas Recirculation/Thermostatic
Vacuum Switch
ELC Ð Electronic Level Control
ESC Ð Electronic Spark Control
EST Ð Electronic Spark Control
ETR Ð Electronically Tuned Receiver
EVRV Ð Electronic Vacuum Regulator Valve (EGR)
Exh Ð Exhaust
¡F Ð Degrees Fahrenheit
FF Ð Front Drive Front Engine
FL Ð Fusible Link
FLW Ð Fusible Link Wire
FRT ÐFront
FWD Ð Front Wheel Drive
4WD Ð Four Wheel Drive
4x4 Ð Four Wheel Drive
4 A/T Ð Four Speed Automatic Transmission/Transaxle
Gal Ð Gallon
Gen Ð Generator
Gov Ð Governor
g Ð Gram
Harn Ð Harness
HC Ð Hydrocarbons
HD ÐHeavy Duty
HEI Ð High Energy Ignition
Hg Ð Mercury
HiAlt Ð High Altitude
HVAC Ð Heater-Vent-Air Conditioning
IAC Ð Idle Air Control
IC Ð Integrated Circuit
ID Ð Identification
Ð Inside Diameter
IDI Ð Integrated Direct Ignition
IGN Ð Ignition
ILC Ð Idle Load Compensator
INJ ÐInjection
IP Ð Instrument Panel
IPC Ð Instrument Panel Cluster
INT Ð Intake
J/B Ð Junction Block
km Ð Kilometers
km/h Ð Kilometer per Hour
kPa Ð KiloPascals
KV Ð Kilovolts (thousands of volts)
KW Ð Kilowatts
0AÐ12 GENERAL INFORMATION

SAE Ð Society of Automotive Engineers
Sec Ð Secondary
SFI Ð Sequential-port Fuel Injection
SI Ð System International
SIR Ð Supplemental Inflatable Restraint System
SOHC Ð Single Overhead Camshaft
Sol Ð Solenoid
SPEC Ð Specification
Speedo Ð Speedometer
SRS Ð Supplemental Restraint System
ST Ð Start
Sw Ð Switch
SWB Ð Short Wheel Base
SYN Ð Synchronize
TAC Ð Thermostatic Air Cleaner
Tach Ð Tachometer
TBI Ð Throttle Body Injection
TCC Ð Transmission/Transaxle Converter Clutch
TCM Ð Transmission/Transaxle Control Module
TDC Ð Top Dead Center
Term Ð Terminal
TEMP Ð Temperature
TPS Ð Throttle Position Sensor
TRANS Ð Transmission/Transaxle
TURBO Ð Turbocharger
TV Ð Throttle Valve
TVRS Ð Television & Radio Suppression
TVS Ð Thermal Vacuum Switch
3 A/T Ð Three Speed Automatic Transmission/
Transaxle
2WD Ð Two Wheel Drive
4x2 Ð Two wheel Drive
U-joint Ð Universal Joint
V Ð Volt(s)
VAC Ð Vacuum
VIN Ð Vehicle Identification Number
VRRRE Ð Vehicle Refrigerant Recovery and Recycling
Equipment
V-ref Ð ECM Reference Voltage
VRV Ð Vacuum Reducer Valve
VSS Ð Vehicle Speed Sensor
VSV Ð Vacuum Switching Valve
V-6 Ð Six Cylinder ÒVÓ Engine
V-8 Ð Eight Cylinder ÒVÓ Engine
W Ð Watt(s)
w/ Ð With
w/b Ð Wheel Base
w/o Ð Without
WOT Ð Wide Open ThrottleL Ð Liter
lbáft Ð Foot Pounds
lbáin Ð Inch Pounds
LF Ð Left Front
LH Ð Left Hand
LR Ð Left Rear
LS Ð Left Side
LWB Ð Long Wheel Base
L-4 Ð In-line Four Cylinder Engine
MAF Ð Mass Air Flow
MAN Ð Manual
MAP Ð Manifold Absolute Pressure
MAT Ð Manifold Air Temperature
MEM-CAL Ð Memory and Calibration Unit
Max Ð Maximum
M/C Ð Mixture Control
Min Ð Minimum
mm Ð Millimeter
MPFI Ð Multi-Port Fuel Injection
MPG Ð Miles per Gallon
MPH Ð Miles per Hour
M/T Ð Manual Transmission/Transaxle
MV Ð Millivolt
NA Ð Natural Aspirated
NC Ð Normally Closed
Nám Ð Newton Meters
NO Ð Normally Open
NOx Ð Nitrogen, Oxides of
OD Ð Outside Diameter
O/D Ð Over Drive
OHC Ð Overhead Camshaft
OL Ð Open Loop
O
2Ð Oxygen
PAIR Ð Pulse Air Injection Reactor System
P/B Ð Power Brakes
PCV Ð Positive Crankcase Ventilation
PFI Ð Port Fuel Injection
PRESS Ð Pressure
PROM Ð Programmable Read Only Memory
P/N Ð Park/Neutral
P/S Ð Power Steering
PSI Ð Pounds per Square Inch
Pt. Ð Pint
Pri Ð Primary
PWM Ð Pulse Width Modulated
Qt Ð Quart
REF Ð Reference
RF Ð Right Front
RFI Ð Radio Frequency Interference
RH Ð Right Hand
RPM Ð Revolutions per Minute
RPO Ð Regular Production Option
RR Ð Right Rear
RS Ð Right Side
RTV Ð Room Temperature Vulcanizing
RVB Ð Rear Vacuum Brake
RVR Ð Response Vacuum Reducer
RWAL Ð Rear Wheel Antilock Brake
RWD - Rear Wheel Drive
GENERAL INFORMATION 0AÐ13

0BÐ2 MAINTENANCE AND LUBRICATION
MAINTENANCE SCHEDULE
GASOLINE ENGINE MODELI: Inspect and correct or replace as necessary A: Adjust
R: Replace or change T: Tighten to specified torque L: Lubricate
SERVICE INTERVAL: x 1,000 km
(Use odometer reading x 1,000 miles
or months whichever comes first) or months5
3
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1215
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1820
12
2425
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3030
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3635
21
4240
24
4845
27
5450
30
6055
33
6660
36
7265
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7870
42
8475
45
9080
48
9685
51
10290
54
10895
57
114100
60
120
GASOLINE ENGINE
* Engine oil
* Engine oil filter
Oil leakage and contamination
* Timing belt
Spark plugs (For leaded fuel use)
Spark plugs (For unleaded fuel use)
Exhaust system
Radiator coolant concentration
Cooling system for water leakage
All hoses and pipes in engine compartment
for clog or damage
Fuel filter
Fuel leakage
Fuel tank
* Air cleaner element
Pre air cleaner
Engine drive belt
Valve clearance
O
2 Sensor (For leaded fuel use)
O
2 Sensor (For unleaded fuel use)-
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(Replace every 165,000 km or 100,000 miles)
(Replace every 165,000 km or 100,000 miles)
(Check and adjust if necessary every 100,000 km or 60,000 miles)
(Replace every 150,000 km or 90,000 miles)
CLUTCH
Clutch fluid
Clutch pedal travel and free play
TRANSMISSION OR TRANSMISSION WITH
TRANSFER CASE
* Manual transmission with transfer case oil
* Automatic transmission fluid leakage
*
(1)Automatic transmission fluid
* Transfer case oil
PROPELLER SHAFT
Loose connections
*
Universal joints and splines for wear
Universal joints and sliding sleeve (front and rear)
FRONT AND REAR AXLE
* Differential gear oil (Front and rear)
Shift on the fly system gear oil
Front axle shaft rubber boot for damage
Axle case for distortion or damage
Axle shafts for distortion or damage-
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ATATAT
STEERING
* Power steering fluid
Oil leakage
* Steering system for looseness or damage
Power steering hose
Steering wheel play
Steering function
Right and left turning radius
Wheel alignment
Joint ball for oil leakage or damage
Joint ball rubber boot for damage
SERVICE BRAKES
Brake fluid
Brake system for fluid leakage
Brake function
* Disc brake pads and discs wear
Brake pedal travel and free play
Pipes and hoses for loose connections or damage
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(1): Adjust or change automatic transmission fluid.
*Marks: Under severe driving conditions, additional maintenance is required.
Refer to “Maintenance schedule under severe driving conditions”.

0BÐ4 MAINTENANCE AND LUBRICATION
DIESEL ENGINE MODELI: Inspect and correct or replace as necessary A: Adjust
R: Replace or change T: Tighten to specified torque L: Lubricate
SERVICE INTERVAL: x 1,000 km
(Use odometer reading x 1,000 miles
or months whichever comes first) or months5
3
610
6
1215
9
1820
12
2425
15
3030
18
3635
21
4240
24
4845
27
5450
30
6055
33
6660
36
7265
39
7870
42
8475
45
9080
48
9685
51
10290
54
10895
57
114100
60
120
DIESEL ENGINE
* Engine oil
* Engine oil filter
Oil leakage and contamination
Idling speed and acceleration
Fan belt tension and damage
Timing belt
Exhaust system
All hoses and pipes in engine compartment
for clog or damage
Valve clearance
* Air cleaner element
Fuel filter
Radiator coolant concentration
Cooling system for water leakage-
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NOTE: In the 4JXI-TC diesel engine, there is provided sub (2nd) oil filter for fuel injection at the upper part of crank case on the left
side of the engine. This oil filter maintenance-free and does not need a periodic replacement. See reverse side the (back)
cover for installation location of the sub (2nd) oil filter.(Replace every 200,000 km or 125,000 miles)
*Marks: Under severe driving conditions, additional maintenance is required.
Refer to “Maintenance schedule under severe driving conditions”. CLUTCH
Clutch fluid
Clutch pedal travel and free play
TRANSMISSION OR TRANSMISSION WITH
TRANSFER CASE
* Manual transmission with transfer case oil
* Automatic transmission fluid
* Transfer case oil
PROPELLER SHAFT
Loose connections
* Universal joints and splines for wear
Universal joints and sliding sleeve (front and rear)FRONT AND REAR AXLE
* Differential gear oil (Front and rear)
Shift on the fly system gear oil
Front axle shaft rubber boot for damage
Axle case for distortion or damage
Axle shafts for distortion or damage-
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ATAT
STEERING
* Power steering fluid
Oil leakage
* Steering system for looseness or damage
Power steering hose
Steering wheel play
Steering function
Right and left turning radius
Wheel alignment
Joint ball for oil leakage or damage
Joint ball rubber boot for damage
SERVICE BRAKES
Brake fluid
Brake system for fluid leakage
Brake function
* Disc brake pads and discs wear
Brake pedal travel and free play
Pipes and hoses for loose connections or damage
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0BÐ6 MAINTENANCE AND LUBRICATION
Item IntervalCondition
ABCD A+D
Engine oil G : Change every 5,000 km (3,000 miles)
D : Change every 5,000 km (3,000 miles) ll
Engine oil filter G : Replace every 10,000 km (6,000 miles)
D : Replace every 5,000 km (3,000 miles) ll
Air cleaner element G : Replace every 20,000 km (12,000 miles)
D : Replace every 40,000 km (25,000 miles)l
Power steering fluid Replace every 50,000 km (30,000 miles)ll
Steering system for looseness
or damage Inspect every 5,000 km (3,000 miles)l
Universal joints and sleeves Inspect for wear and lubricate every 7,500 km (4,500 miles)ll
Transmission with MT Change every 20,000 km (12,000 miles)
transfer case oil after changing at initial 10,000 km (6,000 miles)l
Transmission :
AT
Change every 32,000 km (20,000 miles) lll l
Transfer:
TF Change every 20,000 km (12,000 miles)
after changing at initial 10,000 km (6,000 miles)l
Differential oil Change every 20,000 km (12,000 miles)
after changing at initial 5,000 km (3,000 miles) l
Disc brake pads and discs Inspect every 5,000 km (3,000 miles)lll
Timing belt G : Replace every 120,000 km (75,000 miles)ll
EXPLANATION OF COMPLETE VEHICLE MAINTENANCE SCHEDULE
Explanations of the services listed in the proceeding
Maintenance Scheduled are presented in ÒService
InformationÓ section of each manual.Replace all questionable parts and note any
necessary repairs as you perform these
maintenance procedures.
MAINTENANCE SCHEDULE UNDER SEVERE DRIVING CONDITIONS
Severe driving conditions
A: Repeated short trips
B: Driving on rough roads
C: Driving on dusty roads
D: Driving in extremely cold weather and/or salted roads

MAINTENANCE AND LUBRICATION 0BÐ7
RECOMMENDED FLUIDS, LUBRICANTS
AND FUELS
In order to obtain maximum performance and longest service life from your ISUZU vehicles, it is very
important to select and use correctly best lubricants and diesel fuels.
When lubricating, be sure to use ISUZU genuine lubricants or recommended lubricants listed below,
according to the maintenance schedule for each vehicle model.
The lubrication intervals in the maintenance schedule and the coverage and period of new vehicle warranty
are based on the use of ISUZU genuine lubricants or recommended lubricants as given in the chart which
will serve as a guide for selecting lubricants of proper brand name.
LUBRICATION MAKE BRAND / TYPEGRADE
API ACEA
ISUZU GENUINE BESCO MULTI Ð Z TYPE CE (10W-30) CE
ISUZU GENUINE BESCO MULTI Ð Z (10W-30) CD
ISUZU GENUINE BESCO MULTI Ð Z SUV (5W-30) CD
ISUZU GENUINE BESCO S Ð 3 (10W, 20W, 30, 40) CD
Diesel engine crankcase EXXON / ESSO ESSOLUBE XD-3+ (15W-40) CG4/CF E2/B2
EXXON / ESSO ESSOLUBE XT331 (15W-40) CG-4/CF E2/B2
MOBIL DELVAC HP (15W-40, 20, 30, 40) CF/CE
CALTEX / CHEVRONDELO CXJ (15W-40, 30, 40) CF
SHELL RIMURA D (15W-40, 30, 40 CD/CF
ELF PERFORMANCE TROPHY (15W-40) CE E3
TOTAL RUBIA XT (15W-40) CF-4 E2
ISUZU GENUINE BESCO RACING ACE (7.5W-30) SG
ISUZU GENUINE BESCO MULTI ACE (7.5W-30) SF
ISUZU GENUINE BESCO ACE (10W-30) SE
EXXON / ESSO ESSO SUPERFLO (15W-40, 15W-50, 20W-50) SJ A2
Gasoline engine EXXON / ESSO ESSO UNIFLO (15W-40, 15W-50, 20W-50) SJ A2
crankcase MOBIL MOBIL SUPER XHP
(15W-40, 15W-50, 20W-50)SJ A3
CALTEX / TEXACOHAVOLINE FORMULA-3 (15W-40, 20W-50) SJ
SHELL HELIX SUPER (10W-30) SJ
ELF SUPER SPORTI S (15W-40) SG
TOTAL QUARTZ 5000 (15W-40, 20W-50) SJ A2
ISUZU GENUINE BESCO GEAR OIL TRANSAXLE (5W-30) SG
EXXON / ESSO ESSOLUBE XD-3+ (15W-40) CG-4/CF E2/B2
EXXON / ESSO ESSOLUBE XT331 (15W-40) CG-4/CF E2/B2
Manual transmission MOBIL MOBIL SUPER (10W-30) SH
Transfer caseCALTEX / TEXACOHAVOLINE FORMULA-3 (15W-40, 20W-50) SH
SHELL RIMURA D (15W-40) CD/CF
ELF SUPER SPORTI S (15W-40) SG/CD
TOTAL QUARTZ 5000 (15W-40, 20W-50) SJ/CF A2/B2
ISUZU GENUINE BESCO GEAR OIL SH (80W-90, 90, 140) GL-5
ISUZU GENUINE BESCO SHIFT ON THE FLY (75W-90) GL-5
DifferentialEXXON / ESSO GEAR OIL GX (85W-90) GL-5
Shift on the fly systemMOBIL MOBILUBE HD (80W-90, 85W-140) GL-5
(GL-5 only)CALTEX THURBAN GL-5 EP (80W-90, 85W-140) GL-5
SHELL SPIRAX HD (90, 140) GL-5
ELF TRANSELF TYPE B (80W-90, 85W-140) GL-5
TOTAL TRANSMISSION TM (80W-90, 85W-140) GL-5
ISUZU GENUINE BESCO GEAR OIL LSD (140) GL-5
EXXON / ESSO GEAR OIL LSA (90) GL-5
Differential MOBIL MOBILUBE HD LS (80W-90) GL-5
(Limited Slip Differential) CALTEX GEAR OIL LSD (90) GL-5
ELF TRANSELF TYPE BLS (90) GL-5
TOTAL TRANSMISSION DA (85W-90) GL-5

0BÐ8 MAINTENANCE AND LUBRICATION
FLUID TYPE
Clutch and brake fluid reservoir Besco brake fluid (For light duty)
Hydraulic brake fluid SAE J1703
FMVSS 116 DOT.3 grade
LUBRICATION MAKE BRAND / TYPEGRADE
API ACEA
ISUZU GENUINE BESCO ATF II, ATF III
EXXON / ESSO ESSO ATF D (DEXRONÒ
II-D)
Automatic transmission MOBIL MOBIL ATF (DEXRONÒ
III)
Power steering CALTEX ATF HD (DEXRONÒ
II)
SHELL SHELL DONAX TA (DEXRONÒ
II-D)
ELF ELFMATIC G3 (DEXRONÒ
III)
TOTAL TOTAL FLUID IID (DEXRONÒ
II-D)
ISUZU GENUINE
BESCO L-2 GREASE (No.2), L-3 GREASE (No.3)Propeller shaft sliding EXXON / ESSO RONEX MP (No.2)
yoke, Universal joint MOBIL MOBILGREASE HP 222 (No.2)
Grease fittingCALTEX / TEXACOSTARPLEX-2 (No.2)
(General purpose grease)SHELL SHELL RETINAX A (No.2)
TOTAL MULTIS EP2, EP3 (No.2, No.3)
Propeller shaft slidingISUZU GENUINE ONE LUBER MO GREASE
yoke EXXON / ESSO BEACON Q2 (No.2)
Universal joint EXXON / ESSO MULTIPURPOSE GREASE (Moly) (No.2)
General purpose greaseCALTEX MOLYTEX GREASE EP2 (No.2)(in Molybdenum)TOTAL TOTAL MULTIS MS2 (No.2)
ISUZU GENUINE BESCO LLC SUPER TYPE E
TEXACO / CALTEX HAVOLINE EXTENDED LIFE ANTIFREEZE
Engine cooling system COOLANT
HAVOLINE XLC
EXTENDED LIFE COOLANT 6280
NOTE:
When the recommended lubricants are specified in the workshop manual, follow them.

MAINTENANCE AND LUBRICATION 0BÐ11
OIL VISCOSITY CHART FOR MANUAL TRANSMISSION AND TRANSFER CASE
APPLY ENGINE OIL
SAE 5W-30
SAE 15W-40,20W-40,20W-50
SAE 10W-30
SAE 40,50
ET-12 (Multi-grade) (Single grade)VISCOSITY GRADE - AMBIENT TEMPERATURE
SAE 30
µ25˚C
µ13˚Fµ10˚C
˚F˚C
˚F ˚C
˚F ˚C
˚F˚C
˚F
OIL VISCOSITY CHART FOR FRONT AXLE (Manual and Auto locking hub model)
AND REAR AXLE
APPLY GEAR OIL
SAE 75W-90
SAE 80W-140
SAE 80W-90
GA-06 (Multi grade)(Single grade)GEAR OIL VISCOSITY GRADE - AMBIENT TEMPERATURE
µ25˚C
µ13˚F˚C
˚F µ10˚C
˚F˚C
˚F ˚C
˚F ˚C
˚F
SAE 80W
SAE 75W
SAE 140
SAE 90