🏷️ Basic Information

Make:

Chevrolet

Model:

Avalanche

Year:

2002-2006

Market:

North America

First Generation Start Year:

2002

First Generation End Year:

2006

Platform Code:

GMT825 (GMT800 derivative)

👋 Introduction

Vehicle Segment:

Full-size Sport Utility Truck (SUT)

Competitors:

Ford F-150 SuperCrew (with bed liner conversion), custom pickup conversions. Unique market segment due to its midgate design.

Unique Selling Proposition:

Convertible cargo bed via Midgate, offering SUV-like cabin versatility.

Target Audience:

DIY mechanics, owners looking to save on maintenance and repairs, enthusiasts.

📋 Manual Details

Manual Type:

Service and Repair Manual

Language:

English

File Format:

PDF

Estimated Page Count:

Detailed, comprehensive (Specific count not provided but implies extensive coverage)

📖 Manual Coverage

Powertrain:

Engine, Fuel System, Intake/Exhaust/Cooling, Lube, Ignition, Starting/Charging, Automatic Transmission, Manual Transmission, Transfer Case, Drive Shaft, Differential, Axle

Chassis:

Suspension, Tires & Wheels, Brake Control, Brakes, Parking Brake, Steering Column, Power Steering

Electrical And Body:

Air Conditioning, Supplemental Restraint System (SRS), Seat Belts, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Locks, Meter/Audio/Visual, Horn, Windshield/Glass/Mirror, Instrument Panel, Seats, Engine Hood/Door, Exterior & Interior Trim, General Electrical Systems, Multiplex/CAN Communication

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, lubrication

Diagnostics And Repair:

Troubleshooting procedures, component testing, disassembly and reassembly instructions, repair techniques for all covered systems

Depth Of Coverage:

Comprehensive coverage from basic maintenance to advanced diagnostics and component-level repairs, including detailed technical data and diagrams.

📊 Manual Specifications

Compatibility:

All Versions of Windows & Mac

Required Software:

Adobe PDF Reader, Winzip

Printability:

Printable for garage use

Binding:

Not Applicable (Digital Download)

Paper Type:

Not Applicable (Digital Download)

⚙️ Engine Specifications

Engine Option 1 Displacement:

5.3L (325 cu in)

Engine Option 1 Engine Code:

LM7 (Vortec 5300)

Engine Option 1 Configuration:

V8, OHV, 16-valve, Pushrod

Engine Option 1 Horsepower:

285-295 hp @ 5200 rpm (depending on year/trim)

Engine Option 1 Torque:

325-335 lb-ft @ 4000 rpm (depending on year/trim)

Engine Option 2 Displacement:

6.0L (364 cu in)

Engine Option 2 Engine Code:

LQ4 (Vortec 6000)

Engine Option 2 Configuration:

V8, OHV, 16-valve, Pushrod

Engine Option 2 Horsepower:

300-325 hp @ 5200-5400 rpm (depending on year/trim)

Engine Option 2 Torque:

360-370 lb-ft @ 4000 rpm (depending on year/trim)

Fuel Delivery:

Multi-port Electronic Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

🔧 Transmission

Transmission Type Standard:

4-Speed Automatic (4L60-E)

Transmission Type Optional:

4-Speed Automatic (4L80-E - for 6.0L models)

Drivetrain Options:

Rear-Wheel Drive (RWD), Four-Wheel Drive (4WD) with Autotrac transfer case

📐 Dimensions

Length:

Approx. 223.0 inches

Width:

Approx. 79.7 inches

Height:

Approx. 77.0 inches

Wheelbase:

Approx. 130.0 inches

Cargo Volume Midgate Closed:

Approx. 5.5 ft³ (behind 2nd row)

Cargo Volume Midgate Open:

Approx. 45.0 ft³ (with Midgate folded and 2nd row down)

Curb Weight Rwd 5.3L:

Approx. 5,600 - 5,800 lbs

Curb Weight 4Wd 6.0L:

Approx. 6,000 - 6,200 lbs

Gross Vehicle Weight Rating Gvw:

Approx. 7,000 - 7,200 lbs

🛡️ Safety Features

NHTSA Frontal Crash Driver:

5-Star (2002-2004 models)

NHTSA Frontal Crash Passenger:

5-Star (2002-2004 models)

NHTSA Side Impact Front Driver:

5-Star (2002-2004 models)

NHTSA Side Impact Front Passenger:

5-Star (2002-2004 models)

NHTSA Side Impact Rear Passenger:

5-Star (2002-2004 models)

ABS:

Standard 4-wheel Anti-lock Braking System (ABS)

Traction Control:

Available (often integrated with StabiliTrak on higher trims)

Airbags:

Frontal airbags for driver and front passenger, optional side-impact airbags

Seat Belts:

3-point seat belts for all occupants

💡 Technology Features

Audio System Options:

AM/FM stereo with CD player, optional Bose premium audio system, optional rear-seat entertainment system.

Cruise Control:

Standard on most trims

Multiplex System:

GM's Multiplex/CAN communication network for integrated electronic systems.

🔧 Maintenance

Oil Change Interval:

Every 3,000-7,500 miles or 6 months, depending on oil type and driving conditions (consult manual for specific recommendation).

Tire Rotation Interval:

Every 6,000-7,500 miles

Spark Plug Replacement:

Typically 100,000 miles for iridium-tipped spark plugs.

Engine Oil Type:

SAE 5W-30 Synthetic Blend or Full Synthetic (API certified)

Engine Oil Capacity:

Approx. 6 quarts (5.7 Liters) with filter for 5.3L, 7 quarts for 6.0L

Transmission Fluid Type:

Dexron-III H (or equivalent)

Coolant Type:

GM P/N 12346290 (Orange) or equivalent long-life coolant (OAT)

Common Issue 1:

Active Fuel Management (AFM) lifter issues (on later models, less prevalent in this generation but worth noting for Vortec V8s)

Common Issue 2:

Dashboard cracks (common GM issue of the era)

Common Issue 3:

Rear main seal leaks

Common Issue 4:

Transmission solenoid issues (4L60E/4L80E)

Common Issue 5:

Body control module (BCM) and electrical gremlins

📚 Vehicle History

Manufacturer:

General Motors (GM)

Concept Origin:

Developed from the Chevrolet Silverado/GMC Sierra platform.

Styling Innovation:

Pioneered the 'Sport Utility Truck' (SUT) segment with its convertible Midgate and composite cargo bed.

Assembly Plant:

Janesville, Wisconsin, USA

Production Years:

2002-2006 (First Generation)

🏆 Awards & Recognition

Motor Trend Truck Of The Year:

MotorTrend Truck of the Year (2002) - for the Avalanche platform