🏷️ Basic Information

Make:

Chevrolet

Model:

Trailblazer

Year:

2002-2006

Platform:

GMT360

👋 Introduction

Positioning:

Comprehensive DIY and professional mechanic's resource for the Chevrolet Trailblazer SUV.

Competitors:

Covers all competitor models of mid-size SUVs from the early 2000s in terms of repair and maintenance complexity.

Diagrams Photos:

Hundreds of detailed photos and exploded diagrams for clear instruction

Instruction Style:

Step-by-step instructions, mirroring factory service manual format

Value:

Cost-effective solution for maintaining and repairing the Chevrolet Trailblazer, avoiding expensive dealership labor costs.

📋 Manual Details

Coverage:

All repairs, servicing, and troubleshooting procedures

Page Count:

Hundreds (Specific count not provided, but described as extensive)

Manual Type:

Service Repair Workshop Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Mechanical:

Engine assembly, disassembly, rebuild, cylinder head, pistons, crankshaft, camshafts, timing systems

Engine Electrical:

Ignition system, fuel injection system, starting and charging system, sensors, ECM, wiring diagrams

Transmission Manual:

Manual transmission (if applicable for the specific models covered within the year range) disassembly, assembly, overhaul

Transmission Automatic:

Automatic transmission (4L60-E, 4L65-E) disassembly, assembly, torque converter, valve body, diagnostics

Drivetrain:

Transfer case (NV136, NV236, NV246) overhaul, driveline components, axles, differentials, CV joints

Suspension:

Front and rear suspension, control arms, ball joints, bushings, springs, shock absorbers, steering knuckles

Steering:

Power steering system, steering column, steering gear, tie rods, steering linkage

Brakes:

Front and rear brakes (disc/drum), ABS system, hydraulic system, brake pads, rotors, calipers, wheel cylinders, master cylinder

Electrical Body:

Lighting system, power windows, power locks, mirrors, wipers, horn, interior electronics, exterior lighting

HVAC:

Heating, ventilation, and air conditioning system components, controls, refrigerant, diagnosis

Body Interior:

Interior trim removal and installation, seats, dashboard, headliner, door panels

Body Exterior:

Body panels, doors, hoods, tailgates, bumpers, glass, seals, trim

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tire rotation, brake checks

Troubleshooting:

Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting charts

Repair:

Step-by-step repair instructions for all major and minor mechanical and electrical components

Disassembly Assembly:

Detailed instructions for component removal and installation

Diagnostics:

Advanced diagnostic procedures, including use of scan tools and interpretation of diagnostic trouble codes (DTCs)

Specifications:

Torque specifications for all fasteners, clearances, fluid capacities, and other critical measurements

Depth:

Comprehensive, covering everything from basic fluid changes to complete engine and transmission rebuilds

📊 Manual Specifications

File Format:

PDF

Print Quality:

Printable (single pages or entire manual)

Binding Type:

N/A (Digital download)

Paper Type:

N/A (Digital download)

Licensing:

Lifetime use, no expiry, no renewal fees

Compatibility:

Windows and MAC computers, tablets, and smartphones

Completeness:

Full factory service manual, not a trial or limited version

⚙️ Engine Specifications

Engine Options:

4.2L Atlas inline-6 (LL8), 5.3L Vortec V8 (LM4, LH6), 6.0L Vortec V8 (LQ9)

4.2L Ll8 Horsepower:

275 hp @ 6000 rpm

4.2L Ll8 Torque:

275 lb-ft @ 3600 rpm

5.3L Lm4 Horsepower:

285 hp @ 5200 rpm

5.3L Lm4 Torque:

325 lb-ft @ 4000 rpm

6.0L Lq9 Horsepower:

300 hp @ 5200 rpm

6.0L Lq9 Torque:

360 lb-ft @ 3600 rpm

Fuel Type:

Unleaded Gasoline

Fuel Delivery:

Sequential Fuel Injection (SFI)

Engine Block Material:

Cast Iron (LL8), Aluminum (LM4, LH6, LQ9)

Cylinder Head Material:

Aluminum

🔧 Transmission

Transmission Type Std:

4-speed Automatic (4L60-E, 4L65-E)

Transmission Type Opt:

5-speed Manual (M30, NV1500) - Less common, typically on earlier models or specific trims.

Transfer Case Options:

2WD, 4WD (full-time and part-time options available, e.g., NV136, NV236, NV246)

📐 Dimensions

Length:

Approx. 191.8 inches

Width:

Approx. 74.5 inches

Height:

Approx. 72.0 inches

Curb Weight:

Approx. 4,400 - 4,900 lbs (depending on configuration)

Towing Capacity:

Up to 6,000 lbs (with appropriate trailering package and engine)

🛡️ Safety Features

NHTSA Front Impact:

5-star (driver and passenger)

NHTSA Side Impact:

5-star (front and rear passengers)

Rollover Resistance:

Good (for its class)

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Available Traction Control System (TCS)

Airbags:

Driver and front passenger airbags, optional side-impact airbags

Seatbelts:

Three-point seatbelts for all seating positions, pretensioners

💡 Technology Features

Audio Options:

AM/FM stereo with CD player, optional premium audio systems, rear seat entertainment options on some trims.

Cruise Control:

Standard cruise control

Onstar:

Available OnStar system (subscription-based service)

🔧 Maintenance

Oil Change Interval:

Every 3,000-7,500 miles or 3-6 months, depending on oil type (conventional vs. synthetic) and driving conditions. Refer to manual for specific recommendations.

Tire Rotation Interval:

Every 5,000-7,500 miles

Transmission Fluid Change:

Check at 60,000 miles, typically service every 100,000 miles or as needed based on driving conditions. Refer to manual for specific fluid type.

Engine Oil Type:

SAE 5W-30 (API certified for gasoline engines). Check specific engine for correct specification.

Transmission Fluid Type:

Dexron III/VI Automatic Transmission Fluid (ATF)

Coolant Type:

Ethylene Glycol based, 50/50 mixture with distilled water (GM specification - often referred to as Dex-Cool compatible, though older formulations might differ slightly).

Engine Oil Leaks:

Valve cover gasket, oil pan gasket, rear main seal leaks can occur.

Ignition Coil Packs:

Coil-on-plug ignition systems can develop faulty coil packs, leading to misfires.

Transfer Case Actuator:

Failure of the automatic transfer case actuator (encoder motor) is a common issue, particularly in 4WD models.

Fuel Pump:

Premature fuel pump failure can occur.

Wheel Bearings:

Front wheel bearings are known to wear out and require replacement.

📚 Vehicle History

Chevrolet SUV History:

Chevrolet has a long history of building capable SUVs, from the K5 Blazer to the Tahoe and Suburban. The Trailblazer slots into the mid-size segment.

Generation 1:

The Chevrolet Trailblazer (GMT360 platform) was introduced in 2002 as a replacement for the Oldsmobile Bravada and an upscale variant of the Chevrolet Blazer. It shared its platform with the GMC Envoy, Isuzu Ascender, Saab 9-7X, and Buick Rainier.

Manufacturing Location:

Moraine, Ohio, USA (GM's Moraine Truck Assembly)

🏆 Awards & Recognition

Safety Award 2002:

Kiplinger's Personal Finance: Best New Sport Utility Vehicle for 2002

Safety Award Overall:

Achieved 5-star frontal and side impact crash test ratings from NHTSA for most model years.