🏷️ Basic Information Identification Make: Buick Model: Century Year: 1999 Trim Levels Covered: Custom, Special Edition 👋 Introduction Market Position Positioning: Essential DIY repair and maintenance resource for owners of the 1999 Buick Century. Competitive Analysis Advantage: Officially licensed, OE-derived data provides superior accuracy and completeness compared to generic aftermarket manuals. Key Features Convenience: Instant online access, downloadable PDF format for offline use, compatible with multiple devices. Value: Cost-effective alternative to dealership service or expensive printed manuals, enabling significant savings on repairs. 📋 Manual Details Coverage Areas Language: English Manual Type: Service and Repair Manual Format: PDF Download (Software) Access Duration: 1 Year (with renewal options) 📖 Manual Coverage Systems Covered Engine: 3.1L V6 (L82), 3.8L V6 (L36) Drivetrain: Front-wheel drive (FWD) Suspension: Front McPherson strut, Rear independent trailing arm Steering: Power-assisted rack and pinion Brakes: Front disc, Rear drum (ABS optional) Electrical: Wiring diagrams, fuses, relays, lighting, accessories HVAC: Heating, Ventilation, Air Conditioning system Body And Interior: Body panels, trim, seats, dashboard Diagnostic Troubleshooting: Fault code interpretation, symptom-based diagnostics Procedures Included Maintenance: Oil changes, filter replacements, fluid checks, tune-ups Repair: Engine component replacement, transmission service, brake pad replacement, suspension repair, electrical component troubleshooting and replacement Disassembly And Assembly: Step-by-step instructions for major component removal and installation Technical Depth Depth: Comprehensive (OE-derived data for diagnostics, repair, and maintenance) 📊 Manual Specifications File Format File Format: PDF (Digital) Searchability: Searchable text Printability: Printable Compatibility: PC, Laptop, Smartphone, Tablet via web browser Print Quality Quality: High-resolution digital scans of original factory materials Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine 1 Displacement: 3.1 Liters (189 cu in) Engine 1 Configuration: 3100 SFI V6 (L82) Engine 1 Horsepower: 160 hp @ 5200 RPM Engine 1 Torque: 185 lb-ft @ 4000 RPM Optional Engine Engine 2 Displacement: 3.8 Liters (231 cu in) Engine 2 Configuration: 3800 Series II SFI V6 (L36) Engine 2 Horsepower: 175 hp @ 4800 RPM Engine 2 Torque: 210 lb-ft @ 3200 RPM Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) 🔧 Transmission Standard Transmission Type: 4-speed automatic (4T65-E) Optional Optional Transmission: N/A (No manual transmission option) Features Transmission Features: Electronically controlled with overdrive, torque converter clutch Fluid Specifications Transmission Fluid Type: Dexron III (or equivalent) 📐 Dimensions Exterior Length: 193.4 inches Width: 70.5 inches Height: 56.5 inches Wheelbase: 109.0 inches Weights Curb Weight Approx: 3200 - 3400 lbs (depending on engine and options) Cargo Trunk Capacity Approx: 16.2 cubic feet 🛡️ Safety Features Ratings NHTSA Frontal Driver: N/A (Vehicle tested prior to current rating system) NHTSA Frontal Passenger: N/A (Vehicle tested prior to current rating system) IIHS Moderate Overlap Frontal: Acceptable Active Features ABS: Optional Anti-lock Braking System (ABS) Passive Features Airbags: Driver and front passenger airbags Seatbelts: Front pretensioner seat belts 💡 Technology Features Infotainment Infotainment System: Standard AM/FM stereo with cassette player; optional CD player, premium audio system. Driver Assistance Driver Assistance Features: Cruise control Connectivity Connectivity Features: N/A (No integrated Bluetooth or USB ports) 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles or 6 months (using recommended oil) Air Filter Replacement: Every 30,000 miles Spark Plug Replacement: Every 100,000 miles (Platinum or Iridium) Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic Blend (API Certified) Engine Oil Capacity: 4.5 quarts (4.3 L) with filter (3.1L V6); 4.5 quarts (4.3 L) with filter (3.8L V6) Coolant Type: GM Goodwrench DEX-COOL Extended Life Antifreeze/Coolant Brake Fluid Type: DOT 3 Known Issues Common Problem 1: Intake manifold gasket leaks (especially on 3100 V6 engine) Common Problem 2: Head gasket failures (on some early 3800 Series II engines) Common Problem 3: Transmission solenoid issues or failure (4T65-E) Common Problem 4: Power window motor failures Common Problem 5: EGR valve issues leading to poor idle or stalling 📚 Vehicle History Brand Heritage Buick Legacy: Buick, a division of General Motors, has a long history of producing comfortable, reliable, and value-oriented vehicles. Model Evolution Century Evolution: The 1999 Century is part of the GM W-body platform, a successful mid-size car platform used across GM brands. It replaced the previous generation Century and focused on refinement and comfort. Production Manufacturing Plant: Oshawa Car Assembly, Ontario, Canada 🏆 Awards & Recognition Recognitions Awards: N/A (Specific awards for the 1999 model year not widely documented, but Buick generally positioned as a comfortable and reliable mid-size sedan).