🏷️ Basic Information

Make:

Buick

Model:

Century

Year:

2002

Generation:

Third Generation (1997-2005)

Platform:

GM W-body

👋 Introduction

Market Position:

The 2002 Buick Century occupied the mid-size sedan segment, known for its comfortable ride, spacious interior, and value proposition. It was a popular choice for families and commuters.

Competitive Analysis:

Competed against vehicles such as the Ford Taurus, Chevrolet Impala, Toyota Camry, and Honda Accord. The Century was often positioned as a more comfort-oriented and value-focused alternative.

Key Features:

Comfortable ride quality, spacious interior, straightforward powertrain options, and a reputation for reliability among its target demographic.

📋 Manual Details

Coverage Areas:

Comprehensive service and repair for the entire vehicle

Page Count:

N/A (Digital Access - Full Year)

Manual Type:

Service and Repair Manual Software

Language:

English

Format:

PDF Download (Online Access)

📖 Manual Coverage

Systems Covered:

Engine, Drivetrain, Suspension, Steering, Brakes, HVAC, Electrical Systems, Body & Chassis, Fuel System, Exhaust System, Cooling System, Lubrication System, Ignition System, Powertrain Control Module (PCM), Anti-lock Braking System (ABS), Airbags, Interior and Exterior Lighting, Body Control Module (BCM), Body Panels, Diagnostic Trouble Codes (DTCs)

Procedures Included:

Routine maintenance, troubleshooting, diagnostic procedures, component removal and installation, system repair, electrical wiring diagrams, torque specifications, fluid capacities, specifications and tolerances, exploded views, component identification

Technical Depth:

Factory-level, in-depth diagnostics, repair procedures, and specifications suitable for both DIY enthusiasts and professional technicians.

📊 Manual Specifications

File Format:

PDF (Accessible via Web Browser)

Print Quality:

High-resolution, searchable digital text and diagrams

Binding Type:

N/A (Digital Access)

Paper Type:

N/A (Digital Access)

⚙️ Engine Specifications

Primary Engine:

3.1L (189 cu in) V6 OHV (VIN P)

Horsepower:

175 hp @ 5200 rpm

Torque:

195 lb-ft @ 4000 rpm

Fuel System:

Sequential Fuel Injection (SFI)

Engine Codes:

L82 (3.1L V6)

Engine Block:

Cast Iron

Cylinder Head:

Aluminum

Bore X Stroke:

3.40 in x 3.40 in (86 mm x 86 mm)

Compression Ratio:

9.4:1

Oil Capacity:

4.5 US Quarts (4.2 Liters) with filter change

Oil Viscosity:

API Service SG, SH, SJ or ILSAC GF-2. SAE 5W-30 recommended for most operating conditions.

🔧 Transmission

Transmission Type:

4-speed automatic overdrive

Transmission Model:

4T65-E

Optional Transmission:

N/A for 2002 model year

Transmission Features:

Electronically controlled, lock-up torque converter

Transmission Fluid Type:

Dexron III/VI Automatic Transmission Fluid (ATF)

Transmission Fluid Capacity:

Approximately 11.2 US Quarts (10.6 Liters) for a complete fill.

📐 Dimensions

Length:

199.9 inches (5078 mm)

Width:

70.4 inches (1788 mm)

Height:

56.7 inches (1440 mm)

Wheelbase:

109.0 inches (2769 mm)

Front Track:

60.8 inches (1544 mm)

Rear Track:

60.6 inches (1539 mm)

Curb Weight:

Approximately 3,200 - 3,400 lbs (1451 - 1542 kg)

Gross Vehicle Weight Rating:

Approximately 4,300 lbs (1950 kg)

Trunk Volume:

16.7 cubic feet (473 liters)

🛡️ Safety Features

NHTSA Front Driver Side Impact:

★★★★☆ (4/5 Stars)

NHTSA Front Passenger Side Impact:

★★★★☆ (4/5 Stars)

IIHS Moderate Overlap Frontal Offset:

Good

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control System (TCS - Optional on some trims)

Passive Safety Features:

Driver and front passenger airbags, side-impact door beams, front and rear crumple zones, seat-mounted front side-impact airbags (Optional on some trims)

💡 Technology Features

Infotainment System:

Base AM/FM stereo with cassette and CD player, optional premium sound systems, steering wheel audio controls (on higher trims).

Driver Assistance Features:

Cruise control, intermittent windshield wipers.

Connectivity Options:

Power windows, power door locks, remote keyless entry (optional).

🔧 Maintenance

Oil Change Interval:

Every 3,000-5,000 miles (5,000-8,000 km) or 6 months, using conventional or synthetic oil meeting GM specifications. Consult owner's manual for specific recommendations based on driving conditions.

Tire Rotation Interval:

Every 5,000-7,500 miles (8,000-12,000 km)

Engine Air Filter Replacement:

Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on driving conditions.

Spark Plug Replacement:

Typically every 100,000 miles (160,000 km) for platinum or iridium-tipped plugs.

Coolant Type:

GM-approved silicate-free, long-life engine coolant (e.g., Dex-Cool Orange)

Brake Fluid Type:

DOT 3

Known Issues:

Intake manifold gasket leaks (especially on 3.1L V6), power steering hose leaks, occasional transmission shifting issues, ABS sensor failures, and HVAC blower motor resistor failures are commonly reported.

📚 Vehicle History

Brand Heritage:

Buick, a division of General Motors, has a long-standing history dating back to 1899, known for its focus on comfortable and premium-appointed vehicles.

Model Evolution:

The 2002 Century is part of the third generation, which debuted in 1997, built on the GM W-body platform. This generation saw updates in styling, interior amenities, and powertrain refinements.

Production Years:

1997-2005 (Third Generation)

Manufacturing Location:

Oshawa, Ontario, Canada; Fairfax, Kansas, USA

🏆 Awards & Recognition

Recognitions:

While specific major awards for the 2002 model year are not widely publicized, the Century consistently ranked well in consumer satisfaction surveys for its segment, particularly in terms of ride comfort and value.