Isuzu Trooper 1990 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: Isuzu Model: Trooper Year: 1990 Codes Chassis Code: UBS55 Vin Code: JS-UBS55 👋 Introduction Market Position Segment: Compact/Mid-size SUV, known for off-road capability and ruggedness...

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标签: 1990 Car Cars Isuzu Misc Trooper

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Description

🏷️ Basic Information

Identification

Make:

Isuzu

Model:

Trooper

Year:

Codes

Chassis Code:

UBS55

Vin Code:

JS-UBS55

👋 Introduction

Market Position

Segment:

Compact/Mid-size SUV, known for off-road capability and ruggedness

Competitive Analysis

Competitors:

Jeep Cherokee XJ, Toyota 4Runner, Nissan Pathfinder, Mitsubishi Montero

Key Features

Durability:

Renowned for its robust construction and off-road prowess

Versatility:

Suitable for daily driving, family transport, and serious off-roading

Powertrain:

Reliable Isuzu engines and strong four-wheel-drive systems

📋 Manual Details

Coverage Areas

Manual Type:

Workshop Service Repair Manual

Language:

English

Format:

Downloadable Digital File (likely PDF)

Page Count

Estimated Pages:

Hundreds (exact count not specified, but implies comprehensive coverage)

📖 Manual Coverage

Systems Covered

Engine:

Detailed diagnostics, repair procedures, component overhaul, specifications for all engine variants

Transmission:

Service and repair of manual and automatic transmissions, including clutch, drivetrain components, and transfer case

Brakes:

Hydraulic system, ABS (if equipped), caliper and rotor service, brake line repair, bleeding procedures

Electrical:

Wiring diagrams, component testing, charging system, starting system, lighting, ignition system, instrumentation

Suspension:

Front and rear suspension components, alignment, shock absorber and spring replacement, steering linkage

Chassis:

Frame inspection, body mounting, exhaust system, fuel tank and lines, cooling system

Bodywork:

Body panel repair, door mechanisms, glass replacement, interior trim removal and installation

HVAC:

Heating, Ventilation, and Air Conditioning system diagnosis and repair, refrigerant handling (where applicable)

Fuel System:

Fuel injection system, fuel pump, injectors, fuel pressure testing

Procedures Included

Maintenance:

Scheduled maintenance tasks, oil changes, filter replacements, fluid checks and changes, lubrication points

Troubleshooting:

Diagnostic charts, symptom-based troubleshooting guides, common fault finding

Repair:

Step-by-step instructions for component removal, installation, and repair

Overhaul:

Complete engine, transmission, and differential overhaul procedures

Special Tools:

Identification and use of specialized tools required for specific repair procedures

Technical Depth

Depth:

Comprehensive, covering everything from basic maintenance to complete engine rebuilds and advanced diagnostics

📊 Manual Specifications

File Format

File Type:

Digital Download (likely PDF)

Print Quality

Printability:

High-resolution, suitable for printing individual pages or the entire manual

Binding Type

Binding:

N/A (Digital format)

Paper Type

Paper Quality:

N/A (Digital format)

Searchability

Text Search:

Likely includes searchable text for quick information retrieval

⚙️ Engine Specifications

Primary Engine

Engine Type:

Naturally Aspirated Inline 4-Cylinder Diesel, Naturally Aspirated Inline 4-Cylinder Gasoline, Naturally Aspirated V6 Gasoline

Engine Displacement Gasoline 4Cyl:

2.6 L (2559 cc)

Engine Code Gasoline 4Cyl:

Engine Displacement V6 Gasoline:

3.1 L (3165 cc)

Engine Code V6 Gasoline:

Engine Displacement Diesel:

2.8 L (2771 cc)

Engine Code Diesel:

4JB1-T (Turbocharged)

Performance

Horsepower 2.6L:

120 hp @ 4800 rpm

Torque 2.6L:

150 lb-ft @ 2600 rpm

Horsepower 3.1Lv6:

165 hp @ 4600 rpm

Torque 3.1Lv6:

185 lb-ft @ 3200 rpm

Horsepower 2.8L Diesel:

96 hp @ 3800 rpm

Torque 2.8L Diesel:

177 lb-ft @ 2300 rpm

Fuel System

Fuel Delivery Gasoline:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline, Diesel

🔧 Transmission

Standard

Transmission Type Std:

5-Speed Manual

Optional

Transmission Type Opt:

4-Speed Automatic

Features

Drivetrain:

Part-time 4WD with Electronic Auto-Hubs (most models)

Transfer Case:

2-speed transfer case with 2WD High, 4WD High, 4WD Low, Neutral

📐 Dimensions

Exterior

Wheelbase:

Approx. 104.7 inches (2659 mm)

Length:

Approx. 174.8 inches (4440 mm)

Width:

Approx. 66.5 inches (1689 mm)

Height:

Approx. 64.8 inches (1646 mm)

Weights

Curb Weight Std:

Approx. 3500-3900 lbs (1588-1769 kg) depending on configuration

Gross Vehicle Weight Rating Gvw:

Approx. 4900-5300 lbs (2223-2404 kg)

🛡️ Safety Features

Ratings

NHTSA Rollover Resistance:

Not consistently rated across all trims/years; typically considered average for its class at the time.

Active Features

Available (often on higher trims or as an option)

Passive Features

Seat Belts:

3-point front, 2-point rear (lap belts) in some configurations

Airbags:

Driver airbag typically standard for 1990 model year.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM stereo with cassette player, optional CD player. Speakers in doors and rear.

Dashboard Features:

Analog gauges for speedometer, tachometer, fuel, coolant temperature, oil pressure. Warning lights.

Driver Assistance

Cruise Control:

Available on some models

Connectivity

Usb Ports:

N/A (Pre-dates widespread USB integration)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-5,000 miles or 3-6 months, depending on driving conditions. Refer to manual for exact specifications.

Transmission Fluid Change:

Every 30,000-60,000 miles for automatic, every 60,000 miles for manual. Check manual.

Coolant Change:

Every 2 years or 30,000 miles.

Fluid Specifications

Engine Oil Spec Gasoline:

API SG or higher, SAE 10W-30 or 10W-40. Check manual for exact viscosity based on temperature.

Engine Oil Spec Diesel:

API CD or higher, SAE 15W-40. Check manual for exact viscosity.

Automatic Transmission Fluid Atf:

Dexron II or equivalent

Manual Transmission Fluid:

GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90). Check manual.

Transfer Case Fluid:

GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90). Check manual.

Differential Fluid:

GL-5 Gear Oil (e.g., SAE 80W-90). Check manual.

Coolant:

Ethylene Glycol based antifreeze/coolant, 50/50 mix with distilled water.

Known Issues

Engine Reliability:

Generally reliable, but head gasket issues can occur on V6 engines if overheated. Diesel engines are robust but require proper maintenance.

Body Corrosion:

Susceptible to rust in salt-belt regions, especially around wheel wells, rocker panels, and chassis components.

Transfer Case Chain:

Early models can experience stretched or worn transfer case chains, leading to noise or slippage.

Power Window Motors:

Window regulators and motors can be a common point of failure.

Exhaust System:

Stock exhaust systems can rust and require replacement over time.

📚 Vehicle History

Brand Heritage

Isuzu Heritage:

Isuzu has a long history of manufacturing robust commercial vehicles and SUVs, known for durability and off-road capability.

Model Evolution

Generation:

Second Generation Trooper (1989-1991)

Design Philosophy:

Transitioned from a more utilitarian design to a more comfortable and refined, yet still capable, SUV.

Production

Manufacturing Location:

Japan (Fujisawa Plant)

Production Years:

1983-1991 (First Generation), 1991-2002 (Second Generation - 1990 is a transition year for the domestic Japanese market, but the global second gen started effectively in 1991)

🏆 Awards & Recognition

Recognitions

Off Road Reputation:

Consistently recognized for its off-road capabilities and durability, often favored by off-road enthusiasts and adventurers.

Ratings

Long Term Reliability:

Often cited in publications for its long-term ownership satisfaction and mechanical robustness, provided regular maintenance is performed.