Positioning:
        
        
            The Chevrolet TrailBlazer, part of the GMT360 platform, was a popular mid-size SUV known for its robust truck-based chassis, available V8 engines, and off-road capability, positioning it as a competitor to vehicles like the Ford Explorer and Jeep Grand Cherokee.
        
     
    
    
        
            Competitors:
        
        
            Ford Explorer, Jeep Grand Cherokee, Toyota 4Runner, Nissan Pathfinder, Dodge Durango.
        
     
    
    
        
            SUV Type:
        
        
            Body-on-frame SUV offering truck-like durability and towing capacity.
        
     
    
        
            Engine Options:
        
        
            Available with inline-6 and V8 engines, providing a range of power and performance.
        
     
    
        
            Drivetrain Options:
        
        
            Available in RWD and 4WD configurations.
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            US and Canadian Market Models
        
     
    
    
        
            Estimated Page Count:
        
        
            Extensive (typical for factory service manuals covering multiple systems and models)
        
     
    
    
        
            Type:
        
        
            Factory Service Repair Workshop Manual
        
     
    
    
    
    
    
    
        
            Operating Systems:
        
        
            Windows (95/98/ME/XP/Vista/7/8/8.1/10), Linux, MAC, iOS, Android.
        
     
 
    
    
    
        
            Engine:
        
        
            Mechanical, Emission Control, Fuel Systems, Cooling Systems, Lubrication, Ignition, Starter, Charging System
        
     
    
        
            Drivetrain:
        
        
            Clutch, Manual Transmission, Automatic Transmission, Transfer Case, Propeller Shaft
        
     
    
        
            Chassis:
        
        
            Suspension & Axle, Brake, Steering
        
     
    
        
            Electrical:
        
        
            Electrical Wiring Manual, Body Electrical
        
     
    
        
            Body:
        
        
            Body, Air Conditioning
        
     
    
        
            Restraint System:
        
        
            Covers airbags, seatbelts, and related components.
        
     
    
    
        
            Maintenance:
        
        
            Scheduled maintenance, fluid checks and changes, filter replacements, tune-up procedures
        
     
    
        
            Diagnostics:
        
        
            Troubleshooting guides, symptom-based diagnostics, electrical diagnostics, component testing
        
     
    
        
            Repair:
        
        
            Component removal and installation, major system repairs, engine rebuilds, transmission overhauls, brake system servicing
        
     
    
        
            Technical Information:
        
        
            Service specifications, torque values, tolerances, diagnostic trouble codes (DTCs), wiring diagrams
        
     
    
        
            Preparation:
        
        
            Information on vehicle preparation for service and repair, including safety precautions and general procedures.
        
     
    
        
            Engine Mechanical:
        
        
            Detailed procedures for engine disassembly, assembly, inspection, and repair.
        
     
    
        
            Transmission Repair:
        
        
            Comprehensive repair and overhaul procedures for both manual and automatic transmissions.
        
     
    
        
            Brakes Service:
        
        
            Procedures for brake pad replacement, rotor servicing, caliper repair, brake line inspection, and bleeding.
        
     
    
        
            Air Conditioning Service:
        
        
            Refrigerant handling, system diagnosis, component replacement, and leak detection for the A/C system.
        
     
    
    
        
            Depth:
        
        
            Comprehensive: Covers basic maintenance to complete overhauls and complex diagnostics, suitable for professional technicians and advanced DIYers.
        
     
 
    
    
    
        
            Engine 4 0L Inline 6:
        
        
            4.0L Vortec 4200 LW9 (Inline-6, DOHC) - Approximately 270 hp and 275 lb-ft torque.
        
     
    
        
            Engine 5 3L V8:
        
        
            5.3L Vortec 5300 LH6/LM4 (V8, OHV, Gen III LS) - Approximately 290-305 hp and 325-335 lb-ft torque.
        
     
    
        
            Engine 4 2L V6:
        
        
            4.2L Vortec 4200 LW9 (Inline-6) - Often incorrectly referred to as a V6, it's a straight-6.
        
     
    
    
        
            Towing Capacity:
        
        
            Up to 7,700 lbs (with appropriate engine and towing package).
        
     
    
    
        
            Fuel Delivery:
        
        
            Sequential Port Fuel Injection (SFI) for all engines.
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline.
        
     
 
    
    
    
        
            Transmission 4L60E:
        
        
            4-speed automatic transmission (4L60-E or similar variant) was the most common.
        
     
    
    
        
            Transmission Nvg 246:
        
        
            NVG 246 (New Venture Gear) AutoTrac active transfer case (for 4WD models).
        
     
    
    
        
            Automatic Transmission Control:
        
        
            Electronic control with overdrive and torque converter clutch for improved fuel economy.
        
     
 
    
    
    
        
            NHTSA Front Impact Driver:
        
        
            5-star (for 2002-2004 models)
        
     
    
        
            NHTSA Front Impact Passenger:
        
        
            5-star (for 2002-2004 models)
        
     
    
        
            NHTSA Side Impact Front Driver:
        
        
            4-star (for 2002-2004 models)
        
     
    
        
            NHTSA Side Impact Front Passenger:
        
        
            4-star (for 2002-2004 models)
        
     
    
        
            NHTSA Rollover Rating:
        
        
            4-star (all models)
        
     
    
    
        
            ABS:
        
        
            Standard Anti-lock Braking System (ABS) on all wheels.
        
     
    
        
            Traction Control:
        
        
            Available Traction Control System (TCS) and StabiliTrak electronic stability control system on some models.
        
     
    
    
        
            Airbags:
        
        
            Standard front driver and passenger airbags. Available side-impact airbags.
        
     
    
        
            Seatbelts:
        
        
            3-point seatbelts for all seating positions.
        
     
 
    
    
    
        
            Audio System:
        
        
            Available AM/FM stereo with CD player, cassette, and optional premium audio systems from Bose.
        
     
    
        
            Navigation:
        
        
            Optional factory-installed navigation system on higher trim levels.
        
     
    
    
        
            Cruise Control:
        
        
            Standard cruise control.
        
     
    
        
            Rear Parking Assist:
        
        
            Available ultrasonic rear parking assist sensors.
        
     
    
    
        
            Onstar:
        
        
            Available OnStar in-vehicle safety and information system.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Recommended every 5,000-7,500 miles or 6 months (consult manual for specific conditions and oil type).
        
     
    
        
            Air Filter Replacement:
        
        
            Inspect every 15,000-30,000 miles, replace as needed or every 30,000-45,000 miles.
        
     
    
        
            Spark Plug Replacement:
        
        
            Inline-6: Approx. 100,000 miles (platinum/iridium). V8: Approx. 100,000 miles (if equipped with platinum/iridium plugs).
        
     
    
    
        
            Engine Oil:
        
        
            SAE 5W-30 Synthetic or Conventional (check manual for specific recommendations and API service classification, e.g., API SN or higher).
        
     
    
        
            Transmission Fluid:
        
        
            Dexron III/VI Automatic Transmission Fluid (ATF) or equivalent.
        
     
    
        
            Coolant:
        
        
            GM-specific orange silicate-free long-life coolant (50/50 mix with distilled water).
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4 Hydraulic Brake Fluid.
        
     
    
        
            Transfer Case Fluid:
        
        
            GM specification for NVG 246 transfer case, often a synthetic fluid like SAE 75W-90 GL-4 or GL-5 gear oil (consult manual).
        
     
    
    
        
            Coil Pack Failure:
        
        
            Common issue with the inline-6 engine, leading to misfires and rough running.
        
     
    
        
            Intake Manifold Gaskets:
        
        
            Leaking intake manifold gaskets, especially on the V8 engines, can cause coolant or vacuum leaks.
        
     
    
        
            Power Steering Pump Leaks:
        
        
            Leaks from the power steering pump and hoses are relatively common.
        
     
    
        
            Window Regulator Failure:
        
        
            Power window regulators can fail due to wear and tear.
        
     
    
        
            Transfer Case Actuator:
        
        
            Issues with the AutoTrac 4WD system's transfer case actuator can cause engagement problems.
        
     
 
    
    
    
        
            Chevrolet SUV Lineage:
        
        
            Chevrolet has a long history of producing rugged SUVs and trucks, building on its legacy of vehicles like the K5 Blazer and Tahoe.
        
     
    
    
        
            Introduction:
        
        
            The TrailBlazer was introduced for the 2002 model year as a successor to the Chevrolet Blazer and a more upscale alternative to the Express van-based Uplander.
        
     
    
        
            Platform Sharing:
        
        
            It shared its GMT360 platform with other GM SUVs of the era, including the GMC Envoy, Oldsmobile Bravada, Buick Rainier, Isuzu Ascender, and Saab 9-7X.
        
     
    
    
        
            Production Years:
        
        
            2002-2009
        
     
    
        
            Manufacturing Location:
        
        
            Moraine, Ohio, USA (GM's Truck Assembly Plant)