Market Position:
The Isuzu KB TF 140 was a popular compact pickup truck known for its reliability and utility, often competing with models like the Toyota Hilux, Mazda B-Series, and Nissan D21 Hardbody in its segment.
Competitive Analysis:
This manual serves independent repair shops and DIY enthusiasts who seek to maintain or repair these durable Japanese pickups. Its comprehensive nature ensures it can compete with any factory service manual available.
Key Features:
Provides factory-level diagnostic and repair information, detailed step-by-step instructions, and clear diagrams/illustrations crucial for accurate service. Instant download availability offers immediate access to essential repair data.
Systems Covered:
General Information, Heating and Air-conditioning, Frame and Cab, Steering, Suspension, Wheels and Tires, Axles, Brakes, Engine, Automatic Transmission, Manual Transmission, Clutch, Transfer Case, Electrical-Body and Chassis, Accessories & Restraints, Cab, Security
Page Count Estimate:
Estimated 1000+ pages (typical for comprehensive factory service manuals of this era)
Manual Type:
Factory Service Manual / Workshop Manual / Repair Manual
Engine Systems:
Engine mechanical, lubrication system, cooling system, fuel system (EFI), ignition system, emission control system, engine performance diagnostics, removal and installation
Transmission Systems:
Manual transmission (operation, disassembly, assembly, adjustments), Automatic transmission (operation, diagnostics, removal/installation, internal components), Clutch system (operation, adjustments, replacement)
Drivetrain Systems:
Front axle, rear axle, driveshafts, U-joints, transfer case (if applicable for specific models)
Suspension Steering Brakes:
Front suspension, rear suspension, steering gear, power steering system, wheel alignment, brake system (hydraulic, drum, disc), parking brake
Electrical Body Chassis:
Wiring diagrams, fuse box layout, lighting systems, instrument panel, power accessories, starter system, charging system, engine control module (ECM) diagnostics, chassis electrical components
Body HVAC Accessories:
Body construction, doors, windows, seats, interior trim, heating, ventilation, and air conditioning (HVAC) system, audio system, security system
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, belt inspections and adjustments, brake pad replacement, tune-up procedures
Repair Procedures:
Engine overhaul, transmission rebuild, suspension component replacement, brake caliper overhaul, starter/alternator repair, body panel repair
Diagnostic Procedures:
Troubleshooting flowcharts, symptom-based diagnostics, electrical system diagnostics, engine performance analysis
Technical Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and exploded views for disassembly/reassembly.
Engine Family:
Isuzu G-series
Engine Code Typical:
4JG2 (3.1L Diesel), C223 (2.2L Diesel), C240 (2.4L Diesel)
Horsepower Range Typical:
Approximately 85-100 HP (Diesel variants), specific output varies by engine and market
Torque Range Typical:
Approximately 150-180 lb-ft (Diesel variants), specific output varies by engine and market
Fuel System Type:
Direct Injection Diesel with Mechanical or Electronic Fuel Injection Pump, Fuel Filter, Glow Plugs
Engine Construction:
Cast Iron Block, Aluminum Cylinder Head (typically), Overhead Valve (OHV) or Single Overhead Cam (SOHC) depending on specific engine code
Standard Transmission Type:
5-Speed Manual Transmission
Optional Transmission Type:
4-Speed Automatic Transmission
Transmission Features:
Transfer case for 4WD models (likely part-time 4WD with available 2WD mode)
Safety Ratings Era:
Vehicles from this era typically had fewer advanced safety features and were subject to different testing standards than modern vehicles. Frontal crash test data might be limited or unavailable from official sources.
Active Safety Features:
Standard seat belts, potentially optional ABS (Anti-lock Braking System) on higher trims or later models within the range.
Passive Safety Features:
Reinforced cab structure, energy-absorbing steering column.
Infotainment Features:
Basic AM/FM radio, optional cassette player. Speaker system likely two or four speakers.
Driver Assistance Features:
Limited to basic functions like power steering on some models. No electronic driver aids typical of modern vehicles.
Connectivity Features:
No modern connectivity features (Bluetooth, USB, etc.).
Oil Change Interval Typical:
Every 3,000 - 5,000 miles or 6 months, whichever comes first (diesel engines).
Timing Belt Replacement Interval:
If fitted with a timing belt (less common on these diesel engines which often used chains or gears), typically 60,000-100,000 miles. Check specific engine code for confirmation.
Coolant Flush Interval Typical:
Every 2 years or 30,000 miles.
Engine Oil Spec Diesel Typical:
API CD or CE rated diesel engine oil, SAE 15W-40 or 10W-30 depending on climate.
Transmission Fluid Manual Typical:
API GL-4, SAE 75W-90 or 80W-90 gear oil.
Transmission Fluid Automatic Typical:
Dexron II or equivalent automatic transmission fluid (ATF).
Coolant Specifications Typical:
Ethylene glycol-based coolant (green) with appropriate corrosion inhibitors for heavy-duty diesel applications, typically a 50/50 mix with distilled water.
Known Issues Common:
Potential for injector pump issues (diesel), exhaust manifold cracks (diesel), rust on body panels (especially lower sections and cab corners), aging rubber hoses and seals, front suspension wear (ball joints, bushings), clutch wear.
Known Issues Electrical:
Fraying wiring harnesses, corroded grounds, failure of dashboard illumination or indicator lights.
Brand Heritage:
Isuzu has a long history as a manufacturer of commercial vehicles and reliable diesel engines. The KB/TF series is part of their legacy of producing robust and durable pickup trucks, often exported globally under various names (e.g., Chevrolet LUV, Holden Rodeo).
Model Evolution:
The Isuzu KB/TF is part of a long lineage of Isuzu compact pickup trucks, succeeding earlier models and preceding later global platforms. This generation represents a refinement of the compact pickup formula, with improvements in comfort, styling, and powertrain options.
Production Locations:
Primarily manufactured in Japan, with potential assembly in other global locations under license or joint ventures.
