🏷️ Basic Information Identification Make: Chevrolet Model: Colorado Model Year: 2009-2010 Market: North America (US/Canada) Generation Generation Designation: GMT355 (Second Generation) Generation Years: 2004-2012 Codes Platform Code: GMT355 👋 Introduction Market Position Vehicle Segment: Compact Pickup Truck Target Audience: Consumers seeking robust utility, off-road capability, and a more compact footprint than full-size pickups. Competitive Analysis Key Competitors: Toyota Tacoma, Nissan Frontier, Ford Ranger Key Features Manual Value: Official Factory Service Repair Manual provides the same in-depth information used by dealership technicians, enabling DIYers to perform high-quality repairs and maintenance. Vehicle Attributes: Renowned for its ruggedness, capability, and availability with various engine and drivetrain configurations, making it a versatile work and recreational vehicle. 📋 Manual Details Coverage Areas Geographic Coverage: United States and Canada Page Count Estimated Page Count: Substantial (specific count not provided, but implies comprehensive coverage) Manual Type Type: Official Factory Service Repair Workshop Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, emission control, fuel systems, cooling systems, lubrication, ignition, starter, charging system, clutch, manual transmission, automatic transmission, transfer case, propeller shaft Chassis: Suspension & axle, brake, steering Electrical: Electrical wiring manual, body electrical Body And Interior: Body, restraint system, air conditioning Procedures Included Maintenance: Scheduled maintenance, fluid changes, component inspections Diagnostics: Diagnostic trouble codes (DTCs), troubleshooting procedures, symptom analysis Repair: Component removal, installation, overhaul, and adjustment procedures for all covered systems Specifications: Torque specifications, clearances, fluid capacities, electrical parameters, diagnostic data Technical Depth Diagnostic Capabilities: Advanced diagnostics, including troubleshooting guides and pinpoint tests for electrical and mechanical issues Repair Complexity: Suitable for both novice DIYers with basic mechanical knowledge and professional technicians, covering everything from routine maintenance to complete engine and transmission rebuilds. Diagrams And Illustrations: Comprehensive diagrams, detailed illustrations, and wiring schematics to guide repairs and diagnostics. 📊 Manual Specifications File Format Compatibility: Windows (95, 98, ME, XP, Vista, 7, 8, 8.1, 10), Linux, MAC, iOS, Android Print Quality Readability: Clear and concise text with detailed illustrations, optimized for digital viewing and printing. Binding Type Binding: N/A (Digital PDF Format) Paper Type Paper Quality: N/A (Digital PDF Format) ⚙️ Engine Specifications Primary Engine Engine Option 1: 2.9L Inline-4 DOHC (2.9L Vortec L48) Engine Option 1 Power: Approximately 185 hp @ 5600 rpm Engine Option 1 Torque: Approximately 190 lb-ft @ 4000 rpm Engine Option 2: 3.7L Inline-5 DOHC (3.7L Vortec LLR) Engine Option 2 Power: Approximately 242 hp @ 5600 rpm Engine Option 2 Torque: Approximately 242 lb-ft @ 4600 rpm Performance Engine Management: Sequential Electronic Fuel Injection (SFI) Fuel System Fuel Type: Unleaded Gasoline Fuel Delivery: Multi-port Fuel Injection 🔧 Transmission Standard Transmission Option 1: 5-Speed Manual (M50) Optional Transmission Option 2: 4-Speed Automatic (4L60-E) Transmission Option 3: 4-Speed Automatic (4L70-E) - Typically with 3.7L engine and 4WD Features Drivetrain Options: Rear-Wheel Drive (RWD) and Four-Wheel Drive (4WD) 📐 Dimensions Exterior Wheelbase Short Bed: 111.3 inches (2827 mm) Wheelbase Long Bed: 126.0 inches (3200 mm) Weights Curb Weight Range: Approximately 3,500 - 4,500 lbs (1588 - 2041 kg) depending on configuration. 🛡️ Safety Features Ratings NHTSA Rollover Rating: Likely 4-star (typical for this class and era, specific ratings may vary by configuration and year) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Available Traction Control System (TCS) Passive Features Airbags: Driver and front passenger airbags, available side-impact airbags. 💡 Technology Features Infotainment Audio System: Available AM/FM stereo with CD player, MP3 playback, and auxiliary input. Optional premium audio systems. Driver Assistance Cruise Control: Available cruise control. Connectivity Power Outlets: 12V auxiliary power outlets. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-7,500 miles (5,000-12,000 km) or 6 months, depending on driving conditions and oil type. Consult the Owner's Manual for specific recommendations. Tire Rotation: Every 5,000-7,500 miles (8,000-12,000 km) Spark Plug Replacement: Varies by engine type (e.g., iridium plugs may have longer intervals up to 100,000 miles). Fluid Specifications Engine Oil Recommendation: SAE 5W-30 Synthetic or Conventional (API Certified). Consult manual for exact viscosity based on temperature. Coolant Type: Dex-Cool (GM P/N 12346290 or equivalent orange extended-life coolant) Transmission Fluid Automatic: Dexron VI Automatic Transmission Fluid (ATF) (GM P/N 88863400 or equivalent) Transmission Fluid Manual: GL-4 or GL-5 Gear Lubricant (Viscosity depends on temperature; consult manual) Brake Fluid: DOT 3 or DOT 4 Synthetic Brake Fluid Known Issues Common Concern 1: Intermediate Steering Shaft U-joint wear (leading to clunking noises). Common Concern 2: Water pump leaks (particularly on the 3.7L engine). Common Concern 3: Radiator end tank leaks. 📚 Vehicle History Brand Heritage Chevrolet Truck Legacy: Chevrolet has a long and storied history in the truck market, with the Colorado succeeding models like the S-10. Model Evolution Second Generation Focus: The second generation (GMT355) introduced significant updates over the first generation, offering improved styling, more powerful engine options (including the inline-5), and enhanced chassis dynamics....