Model:
Holden Jackaroo (sold as Isuzu Trooper in most markets)
Model Variant:
UBS series, SWB and LWB wagon
Production Years Covered:
1998-2005
Generation:
UBS (may be suitable for other years)
General Information:
Vehicle identification, specifications, special tools and general service procedures
Maintenance:
Scheduled maintenance tables, inspection and adjustment procedures
Engine Mechanical:
Complete engine mechanical service for 6VD1, 6VE1, 4JG2 and 4JX1 engines
Engine Lubrication:
Lubrication system diagnosis, oil pump and cooler service
Engine Cooling:
Radiator, thermostat, water pump and cooling fan service
Engine Fuel & Emission Control:
Fuel delivery and emission control system diagnosis and repair
Accelerator Control:
Accelerator cable and pedal linkage adjustment
Fuel and Exhaust Systems:
Tank, lines, injectors/pump and exhaust component service
Clutch:
Clutch removal, inspection and adjustment
Manual Transmission:
Disassembly, overhaul and reassembly procedures
Automatic Transmission:
Diagnosis, hydraulic testing and overhaul
Propeller Shaft & Differential:
Driveshaft and differential carrier service
Front and Rear Axle:
Axle housing, hub and free-wheel clutch service
Suspension:
Front torsion bar and rear coil spring suspension service
Brake System:
Hydraulic, disc, drum, parking brake and ABS procedures
Steering System:
Recirculating ball power steering gear and linkage service
Restraint System:
SRS airbag and seat belt service precautions and procedures
Body and Trim:
Panels, interior trim, seals and glass
Heater and Air Conditioner:
HVAC components and refrigerant system service
Electrical System:
Wiring, charging, starting and body electrical diagnostics
Technical Depth:
Factory-level detail: torque specifications, wiring diagrams, diagnostic flow charts and step-by-step overhaul instructions
Parts Information:
Fastener torque values, fluid capacities and specified part references included within procedures
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine 1 Type:
Petrol V6, 3.2L, engine code 6VD1
Engine 2 Type:
Petrol V6, 3.5L, engine code 6VE1
Performance:
N/A - outputs varied by market and model year; not stated in this listing
Fuel System:
Multi-point electronic fuel injection
Engine 3 Type:
Diesel, 3.1L, engine code 4JG2, naturally aspirated and turbocharged variants
Engine 4 Type:
Diesel, 3.0L, engine code 4JX1, turbocharged direct injection
Fuel System:
4JG2: distributor-type injection pump; 4JX1: common-rail direct injection
Body Style:
SUV (body-on-frame wagon, SWB and LWB)
Wheelbase:
Approximately 2,760 mm (LWB); 2,305 mm (SWB)
Length:
Approximately 4,725 mm (LWB wagon)
Curb Weight:
Approximately 1,900-2,100 kg depending on engine and drivetrain
Crash Test Information:
N/A - not specified in this manual listing
Restraint System:
Dual front airbags with SRS diagnostic and service procedures covered
Seat Belts:
Three-point front and rear belts; inspection and replacement covered
Braking:
Ventilated disc brakes with optional ABS; load-sensing proportioning valve
Child Restraints:
Rear seat ISOFIX/lower anchor and top tether provisions on later models
Audio System:
AM/FM radio with cassette/CD head unit options; electrical diagnostics covered
Climate Control:
Manual air conditioning; some markets offered automatic climate control
Driver Assistance:
N/A - this era predates modern ADAS; ABS is the primary electronic driver aid
Convenience:
Central locking, power windows and power mirrors on higher trim levels
Service Intervals and Fluids
Service Intervals:
Scheduled maintenance tables with time/distance intervals included in the manual
Engine Oil:
Petrol V6: API-rated petrol engine oil; Diesel 4JX1: low-SAPS oil meeting manufacturer specification
Coolant:
Long-life ethylene glycol coolant mix
Transmission Fluid:
Manual: gear oil per specification; Automatic: Dexron-type ATF
Differentials and Transfer Case:
Hypoid gear oil per factory specification
Known Issues:
4JX1 injector sleeve/seal leakage and 3.5L 6VE1 oil consumption are commonly documented wear items
Common Wear Items:
Front torsion bar sag, universal joints, steering linkage and brake components
Manufacturer:
Isuzu, one of Japan's longest-established vehicle and commercial truck manufacturers
Model Evolution:
Second-generation UBS Trooper/Jackaroo introduced in the early 1990s; sold as Holden Jackaroo in Australia and Isuzu Trooper in most other markets, updated through 1998-2005
Production Location:
Fujisawa, Japan; also assembled in some markets from kits
