Welcome to the comprehensive service and repair manual for the 2000 Buick Century. As part of the third generation, this mid-size sedan, built on the GM W-body platform, was designed as a comfortable and reliable daily driver, competing with established models like the Ford Taurus and Toyota Camry. The 2000 Century offered a spacious interior and a smooth ride, available with either a 3.1L V6 or a more powerful 3.8L V6 engine, and featured standard amenities such as cruise control and a comfortable seating arrangement. Its engineering prioritizes passenger comfort and ease of use, making it a practical choice for everyday transportation. This manual provides extensive, factory-level information essential for the maintenance and repair of your 2000 Buick Century. It covers all major systems, including detailed diagnostics, repair procedures, and rebuild instructions for the engine mechanical and electrical components, the 4T65-E automatic transmission, drivetrain, brakes, suspension, steering, HVAC, and body electrical systems. Additionally, it includes routine maintenance schedules, troubleshooting guides for common issues, and comprehensive wiring diagrams. This resource is invaluable for owners, mechanics, and technicians seeking to ensure the longevity and optimal performance of their vehicle. 🏷️ Basic Information Identification Make: Buick Model: Century Year: 2000 Generation Generation: 3rd Generation (1997-2005) Codes Platform: GM W-body 👋 Introduction Market Position Positioning: Mid-size sedan positioned as a comfortable and reliable daily driver. Competitive Analysis Competitors: Ford Taurus, Chevrolet Impala, Toyota Camry, Honda Accord. Key Features Features: Spacious interior, comfortable ride, V6 engine option, affordable pricing. Manual Advantage Digital Benefit: Instant access, cost-effective compared to print, easy to use on multiple devices. 📋 Manual Details Coverage Areas Coverage: Complete service and repair information for the 2000 Buick Century. Page Count Estimated Pages: 1500+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF Download (Software) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine diagnostics, repair, overhaul, timing, lubrication, cooling. Engine Electrical: Ignition system, starting and charging system, fuel injection, emissions control. Transmission: Automatic transmission (4T65-E) diagnosis, repair, and overhaul. Drivetrain: Front-wheel drive axle shafts, CV joints, differential. Brakes: Front and rear disc brakes, ABS system, parking brake. Suspension: Front MacPherson struts, rear multi-link suspension, shock absorbers, control arms, ball joints. Steering: Power steering system, steering column, rack and pinion. HVAC: Air conditioning system, heating system, climate controls, blower motor. Electrical Body: Lighting systems, power windows, power locks, mirrors, interior and exterior trim, body panels. Wiring Diagrams: Comprehensive electrical wiring diagrams for all major systems. Procedures Included Maintenance: Routine maintenance checks and procedures, fluid changes, filter replacements. Troubleshooting: Diagnostic procedures for common and uncommon issues, fault code interpretation. Repair: Detailed step-by-step repair instructions for all major components. Rebuild: Engine and transmission rebuild procedures. Technical Depth Depth: Factory-level diagnostic and repair information, suitable for DIY and professional mechanics. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Printable pages Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) Searchability Text Search: Searchable text for quick information retrieval ⚙️ Engine Specifications Primary Engine Engine Option 1: 3.1L (189ci) V6 (L82) Horsepower Option 1: 150 hp @ 5200 rpm Torque Option 1: 170 lb-ft @ 4000 rpm Secondary Engine Engine Option 2: 3.8L (231ci) V6 (L36) Horsepower Option 2: 170 hp @ 4800 rpm Torque Option 2: 210 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) Ignition System Ignition: Distributorless Ignition System (DIS) Emission Controls Emissions: On-Board Diagnostics (OBD-II), EGR, Catalytic Converter. 🔧 Transmission Standard Transmission Type: 4-speed automatic Transmission Model: 4T65-E Features Transmission Features: Electronic controls, overdrive, torque converter clutch. Fluid Specifications Transmission Fluid Type: Dexron III 📐 Dimensions Exterior Wheelbase: 109.0 inches (2769 mm) Length: 199.7 inches (5072 mm) Width: 70.5 inches (1791 mm) Height: 56.4 inches (1433 mm) Weights Curb Weight: Approx. 3300-3450 lbs (1497-1565 kg) depending on trim and engine Cargo Trunk Capacity: 15.7 cubic feet (445 liters) 🛡️ Safety Features Ratings NHTSA Driver Front Impact: 5-Star (1999-2000 model years) NHTSA Passenger Front Impact: 5-Star (1999-2000 model years) Active Features ABS: Standard Anti-lock Braking System (ABS) Passive Features Airbags: Driver and front passenger airbags Seatbelts: Three-point seatbelts for all occupants, pretensioners for front seats. 💡 Technology Features Infotainment Audio System: Optional premium sound systems, CD player, cassette player. Driver Assistance Cruise Control: Standard cruise control Connectivity Auxiliary Input: N/A (typically requires aftermarket modification) 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-7,500 miles (5,000-12,000 km) or 6 months, depending on oil type and driving conditions. Air Filter Replacement: Every 15,000-30,000 miles (24,000-48,000 km) Spark Plug Replacement: Every 60,000-100,000 miles (96,000-160,000 km) for platinum-tipped plugs Fluid Specifications Engine Oil Type: SAE 5W-30 (API Certified) Coolant Type: Dex-Cool (Orange) or equivalent silicate-free, extended-life coolant Brake Fluid Type: DOT 3 Known Issues Common Issues List: Intake manifold gasket leaks (3.1L V6), transmission solenoid issues, power steering pump leaks, window regulator failures, front...