This manual covers the Colorado, an iconic Australian mid-size pickup truck produced from 2003 to 2008, specifically the RC Series. Built on the robust GMT360 platform shared with the D-Max, the Colorado is renowned for its ruggedness, utility, and off-road capability, offering exceptional value for money. Available in various body styles including Single Cab, Space Cab, and Crew Cab, and equipped with either a reliable 3.0L Turbocharged Diesel engine (4JH1-TC) or a 3.5L V6 petrol engine, this vehicle is designed to handle demanding work and adventurous pursuits. Its legacy is rooted in a strong automotive heritage, representing a significant modernization of their light commercial vehicle offerings. This comprehensive workshop service and repair manual provides essential information for maintaining and repairing your Colorado. It details procedures for all engine variants, manual and automatic transmissions, 2WD and 4WD drivetrains, suspension, steering, brakes, and electrical systems. The manual includes step-by-step instructions, diagnostic procedures, troubleshooting guides, technical specifications, and rebuild procedures for major components, supported by detailed illustrations and photos. Whether you are a professional technician or an owner performing routine maintenance, this manual serves as an indispensable resource to ensure your vehicle remains in optimal condition. 🏷️ Basic Information Identification Make: Holden Model: Colorado Generation Generation Designation: RC Series Codes Platform Code: GMT360 (shared with Isuzu D-Max) 👋 Introduction Market Position Vehicle Segment: Mid-size Pickup Truck Competitive Analysis Key Competitors: Toyota Hilux, Ford Ranger, Mitsubishi Triton Key Features Vehicle Appeal: Ruggedness, utility, off-road capability, value for money 📋 Manual Details Coverage Areas Vehicle Years: 2003, 2004, 2005, 2006, 2007, 2008 Page Count Total Pages: 4264 Manual Type Type: Workshop Service Manual / Repair Manual Language Primary Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine: All engine variants (petrol and diesel) Transmission: Manual and Automatic Transmissions Drivetrain: 2WD and 4WD Systems Suspension: Front and Rear Suspension, Steering System Brakes: Brake System Components, ABS (if equipped) Electrical: Full Electrical Schematics, Lighting, Ignition, Starting, Charging Bodywork: Exterior and Interior Body Components, Panels, Trim Climate Control: HVAC System (Heating, Ventilation, Air Conditioning) Fuel System: Fuel tank, pump, injectors, lines Cooling System: Radiator, thermostat, water pump, hoses Exhaust System: Exhaust manifold, catalytic converter, muffler Safety Systems: Airbags, Seatbelts Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements Troubleshooting: Diagnostic procedures for common and complex issues Repair: Component removal, disassembly, assembly, and installation Adjustment: Precise adjustment procedures for various systems Diagnostics: Diagnostic trouble codes (DTCs), testing procedures Specifications: Torque values, clearances, wear limits Special Tools: Identification and usage of specialized service tools Technical Depth Depth Of Coverage: Comprehensive bumper-to-bumper coverage Detail Level: Step-by-step instructions with detailed illustrations, diagrams, and photos Rebuild Procedures: Includes full rebuild procedures for major components 📊 Manual Specifications File Format Readability: Viewable on any computer, zoomable Print Quality Printability: Fully printable pages Binding Type Binding Format: Digital PDF (Printable) Paper Type Digital Format Notes: No physical paper or binding; instant digital download Software Requirement Required Software: Adobe Reader Compatibility Operating Systems: Windows, Mac, Linux OS ⚙️ Engine Specifications Primary Engine Common Diesel Engine: Isuzu 4JH1-TC (3.0L Turbocharged Diesel) Common Petrol Engine: Holden 3.5L V6 (Family II) Performance Typical Diesel Hp: 130-145 hp (depending on variant and year) Typical Diesel Torque: 240-315 Nm (depending on variant and year) Fuel System Diesel Injection: Common Rail Diesel Injection (CRDI) Engine Codes Isuzu Diesel Code Example: 4JH1-TC 🔧 Transmission Standard Common Manual Transmission: 5-speed Manual Optional Common Automatic Transmission: 4-speed Automatic Features Drivetrain Options: Rear-Wheel Drive (RWD), Four-Wheel Drive (4WD) 📐 Dimensions Exterior Body Styles: Single Cab, Space Cab, Crew Cab Cargo Bed Lengths: Varies by cabin configuration Weights Gross Vehicle Weight Rating Gvwr: Approx. 2,700 - 3,100 kg (depending on configuration) 🛡️ Safety Features Ratings Ancap Rating Period: Not consistently rated across all configurations and years within the specified range; older models may have lower ratings or no ANCAP rating. Active Features ABS Availability: Available on higher trims or as an option Passive Features Airbag Availability: Driver airbag standard on most models; passenger airbag availability varies. 💡 Technology Features Infotainment Infotainment Features: Basic AM/FM radio, CD player, limited auxiliary inputs depending on trim level and year. Driver Assistance Traction Control Availability: Available on some models, often tied to 4WD systems. Connectivity Bluetooth Availability: Rarely standard; may be present on higher trims in later years of the range, or aftermarket. 🔧 Maintenance Service Intervals Oil Change Interval Diesel: Typically 5,000-10,000 km or 6-12 months (refer to manual for specific recommendation) Fluid Specifications Engine Oil Type Diesel: API CI-4 or ACEA B4 rated synthetic diesel engine oil (e.g., 5W-30, 10W-40, consult manual for exact viscosity based on climate) Engine Oil Capacity Diesel: Approximately 7.5 - 8.5 Liters (with filter) Coolant Type: Ethylene Glycol based coolant, typically pink or red OAT formulation Known Issues Common Diesel Issues: Potential for injector issues, turbocharger wear, EGR valve clogging, glow...