🏷️ Basic Information

Make:

Isuzu / Holden

Model:

D-Max / Rodeo / Colorado

Chassis Codes:

RA7, KB, TFR, TFS

Product Name:

ISUZU D-MAX RODEO ColorADO RA7 KB TFR-TFS 2004-2008 WORKSHOP MANUAL

Generation Identifier:

RA7 Series (Holden Rodeo) / D-Max (Global)

Internal Model Codes:

RA7 (Holden), KB (older Isuzu), TFR/TFS (D-Max platform variations)

👋 Introduction

Market Segment:

Light Commercial Vehicle (LCV) / Utility Vehicle / Pickup Truck.

Key Competitors Era:

Toyota Hilux, Mitsubishi Triton/Pajero Sport, Ford Ranger, Nissan Navara.

Vehicle Strengths:

Durability, reliability, robust diesel engine options, strong towing and load-carrying capacity.

Manual Value Proposition:

Provides in-depth, authoritative guidance crucial for maintaining and repairing these robust utility vehicles, covering both common and specialized procedures.

📋 Manual Details

Manual Scope:

Comprehensive workshop repair and maintenance for Isuzu D-Max, Holden Rodeo, and Holden Colorado models.

Vehicle Years Covered:

2004, 2005 (Early Models), 2006, 2007, 2008 (Late Models)

Body Styles Covered:

Single Cab, Dual Cab, Tray-Style Side

Drivetrain Configurations Covered:

2WD (Two-Wheel Drive), 4WD (Four-Wheel Drive)

Estimated Page Count:

Likely 1000+ pages (typical for comprehensive workshop manuals of this era and scope).

Manual Type:

Workshop Manual / Service Manual / Repair Manual

Language:

English

Format:

Likely printed booklet or PDF. For sales purposes, assuming printed for comprehensive detailing.

📖 Manual Coverage

Engine Systems Diesel:

Diagnosis, Mechanical Component Overhaul, Cooling System, Fuel System (Injection, Pump, Filters), Electrical Control, Exhaust System.

Engine Systems Petrol:

Diagnosis, Mechanical Component Overhaul, Cooling System, Fuel System (Injection, Pump, Filters), Electrical Control, Exhaust System.

Transmission Manual:

Overhaul, Repair, Clutch System (Hydraulic/Mechanical Operation, Components).

Transmission Automatic:

Overhaul, Repair, Diagnostics, Fluid Service.

Chassis Systems:

Frame and Bumper Repair, Sheetmetal Replacement and Repair, Front Alignment Specifications, Steering (Manual and Power Systems), Front Suspension (Components, Geometry, Adjustment), Rear Suspension (Components, Geometry, Adjustment), Wheels and Tires (Mounting, Balancing, Specifications), Axle Assemblies (Front and Rear), Propshaft (2WD and 4WD), Rear Axle (Differential, Hubs), Diff Lock Operation and Repair.

Braking System:

Hydraulic System (Master Cylinder, Lines, Calipers/Wheel Cylinders), ABS Operation and Diagnosis, Parking Brake Mechanism, Brake Pad/Shoe Replacement, Rotor/Drum Servicing.

Electrical Body:

Body Electrical Systems, Lighting, Wipers, Horn, Power Accessories (Windows, Locks), Instrument Panel Functions, Wiring Diagrams.

Safety Systems:

SRS (Supplemental Restraint System - Airbags) Components, Diagnosis, and Safety Precautions, Security System (Immobilizer, Alarms).

Comfort Systems:

Heating and Air Conditioning (HVAC) System Diagnosis, Service, and Component Replacement.

Maintenance Procedures:

Scheduled Maintenance Intervals, Oil and Fluid Changes (Engine, Transmission, Differential, Coolant, Brake), Filter Replacements, Lubrication Points.

Diagnostic Procedures:

Troubleshooting Guides for Engine Performance, Transmission Issues, Brake Problems, Electrical Faults, HVAC Malfunctions.

Repair And Overhaul:

Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation for all major vehicle systems.

Calibration And Adjustment:

Front Wheel Alignment Settings, Valve Clearances (where applicable), Clutch Adjustment, Parking Brake Adjustment.

Depth Of Coverage:

Expert-level technical information for mechanics and experienced DIY enthusiasts, covering from basic maintenance to complete engine and transmission rebuilds.

Diagnostic Tools Mention:

Likely includes information on diagnostic trouble codes (DTCs) and potentially specific diagnostic tool usage or procedures.

Torque Specifications:

Detailed torque values for critical fasteners across all mechanical systems.

Clearances And Tolerances:

Specifications for engine component clearances (e.g., piston-to-wall, bearing clearances), brake shoe/pad clearances, etc.

📊 Manual Specifications

Format Details:

For a printed version: High-resolution print, durable binding, clear diagrams and schematics.

Print Quality:

Professional printing with clear, legible text and high-quality photographic or line-art diagrams.

Binding Type:

Likely comb binding, spiral binding, or perfect binding for durability in a workshop environment.

Paper Type:

Durable, possibly coated paper to resist grease and workshop fluids.

⚙️ Engine Specifications

Engine Code:

4JA1

Displacement:

2.5 Liters (2499 cc)

Aspiration:

Turbo Diesel (TD)

Engine Code:

4JH1

Displacement:

3.0 Liters (2999 cc)

Aspiration:

Intercooled Turbo Diesel (TD)

Engine Code:

4JK1

Displacement:

2.5 Liters (2499 cc)

Aspiration:

Direct Injection Turbo Diesel (TD)

Engine Code:

4JJ1

Displacement:

3.0 Liters (2999 cc)

Aspiration:

Direct Injection Turbo Diesel (TD)

Engine Code:

HFV6 3.6L Alloytec

Displacement:

3.6 Liters (3564 cc)

Configuration:

V6, DOHC

Engine Code:

C24SE

Displacement:

2.4 Liters (2384 cc)

Configuration:

Inline 4-Cylinder, SOHC, 8-Valve

Fuel Delivery Diesel:

Common Rail Direct Injection (CRDI) for 4JK1/4JJ1; Indirect Injection (IDI) or Direct Injection (DI) likely for older 4JA1/4JH1 variants, dependent on specific sub-models.

Fuel Delivery Petrol:

Electronic Fuel Injection (EFI)

Power Torque Notes:

Specific power and torque figures vary by engine and market, and are detailed within the manual.

🔧 Transmission

Manual Transmission Options:

Likely 5-speed or 6-speed manual transmissions for diesel engines.

Automatic Transmission Options:

Likely 4-speed or 5-speed automatic transmissions, especially for petrol and higher-spec diesel variants.

Clutch System Type:

Hydraulic clutch actuation for most models.

Transfer Case 4Wd:

Manual or electronic engagement 4WD system, with potential for low-range gearing.

📐 Dimensions

Wheelbase Variants:

Multiple wheelbase options typically available across single/dual cab configurations.

Body Styles:

Single Cab Chassis, Dual Cab Chassis, Styleside Pickup Body.

Gross Vehicle Weight Rating Gvwr:

Varies by configuration and payload rating, detailed in manual.

Curb Weight:

Varies significantly by engine, cab configuration, and drivetrain.

🛡️ Safety Features

Safety Rating Notes:

Safety ratings (e.g., ANCAP for Australia) vary by specific model year and equipment. Manual will detail safety system components.

Active Safety Features:

Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD) on some models, Traction Control (TC) on later models.

Passive Safety Features:

Front Airbags (driver and passenger), Seatbelt Pretensioners, Crumple Zones, Side Impact Beams.

💡 Technology Features

Infotainment Features:

Basic infotainment systems typically included radio/CD players. Higher trims might have auxiliary inputs or early forms of Bluetooth connectivity.

Driver Assistance Features:

Limited driver assistance features for this era. ABS was the primary advanced system.

Connectivity Options:

Basic connectivity via AUX input or early Bluetooth phone integration on some later models.

🔧 Maintenance

Engine Oil Change:

Typically 5,000-10,000 km or 6-12 months, depending on driving conditions and oil type. Specifics in manual.

Fuel Filter Replacement:

Recommended at intervals such as 40,000-80,000 km, or as per manual recommendations, especially crucial for diesel engines.

Transmission Fluid Change:

Manual: Inspect annually. Automatic: Typically 80,000-160,000 km, or under severe use conditions.

Engine Oil Specification:

API CH-4/CI-4 or ACEA E5/E7 for diesel engines, API SL/SM for petrol engines. Viscosity grades like 5W-30, 10W-30, 15W-40, 20W-50 depending on climate and engine. Specifics in manual.

Coolant Specification:

Ethylene glycol-based antifreeze coolant, meeting specific OEM standards (e.g., GM Dex-Cool or equivalent for V6). Blue or green coloured coolant often used in Isuzu diesel variants.

Brake Fluid Specification:

DOT 3 or DOT 4 brake fluid.

Transmission Fluid Automatic:

Dexron-III or Dexron-VI (for later models) ATF.

Transmission Fluid Manual:

GL-4 or GL-5 rated gear oil, viscosity typically 75W-90 or 80W-90.

Common Diesel Issues:

Glow plug failure, turbocharger issues (e.g., sticky vanes), injector problems (especially with fuel quality), EGR valve clogging, potential for head gasket leaks on high-mileage engines.

Common Petrol Issues:

Spark plug wear, ignition coil issues, potential for oil leaks from valve covers or sump gaskets, water pump failures on Alloytec V6.

Common Chassis Issues:

desgaste de ballestas (leaf spring wear), rodamiento de rueda (wheel bearing wear), fugas de aceite en diferenciales (differential oil leaks), problemas con el sistema 4WD (4WD system issues), desgaste del embrague (clutch wear).

📚 Vehicle History

Isuzu Heritage:

Isuzu has a long-standing reputation for producing reliable diesel engines and robust commercial vehicles.

Dmax Rodeo Evolution:

The RA7 Rodeo generation represented a significant update for Holden's utility vehicle, often sharing core Isuzu engineering and drivetrains.

Manufacturing Locations:

Primarily produced in Thailand for global markets, with significant assembly or branding by Holden in Australia.

🏆 Awards & Recognition

Awards And Ratings:

The Holden Rodeo and Isuzu D-Max are known for their segment leadership in sales and reliability in various markets, often receiving positive reviews for performance and value.