🏷️ Basic Information Identification Make: Buick Model: Century Year: 2003 Codes Platform Code: W-body 👋 Introduction Market Position Target Audience: DIY car owners, independent repair shops, auto technicians seeking dealership-level repair data. Competitive Analysis Advantage: Provides the same authoritative information used by certified dealership technicians, offering vehicle-specific, not generic, repair data. PDF format offers flexibility for printing and digital access. Key Features Format Advantage: Searchable text, ability to print specific pages, zoomable illustrations and schematics, eliminates physical wear and tear of traditional manuals. 📋 Manual Details Coverage Areas Primary Coverage: Service, Maintenance, Diagnosis, and Repair Page Count Estimated Page Count: Thousands (as a comprehensive PDF) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, valve train, pistons, crankshaft, connecting rods, engine block, timing system, lubrication, cooling system. Engine Control System: Fuel injection, ignition system, engine control module (ECM), sensors (MAP, TPS, O2, Crankshaft Position, Camshaft Position), actuators, emissions controls. Fuel System: Fuel tank, fuel pump, fuel filter, fuel lines, fuel injectors, fuel pressure regulator, evaporative emission control (EVAP). Intake Exhaust Cooling: Intake manifold, throttle body, exhaust manifold, catalytic converter, muffler, radiator, cooling fan, water pump, thermostat. Lubrication: Oil pan, oil pump, oil filter, oil galleries, lubrication specifications. Ignition Starting Charging: Spark plugs, ignition coils, battery, starter motor, alternator, voltage regulator, wiring. Automatic Transmission: Transmission assembly, torque converter, valve body, clutch packs, gear sets, hydraulic system, transmission control module (TCM), fluid specifications, service procedures. Manual Transmission: Transmission assembly, clutch assembly, gear shift mechanism, fluid specifications, service procedures (if applicable to specific trims/engines). Drivetrain: Transfer case (if applicable), propeller shaft, drive shafts, constant velocity (CV) joints, differential, axle shafts, wheel bearings. Suspension: Front suspension (struts, control arms, ball joints, sway bar), rear suspension (shocks, springs, control arms, trailing arms, sway bar), alignment specifications. Steering: Steering column, steering gear/rack and pinion, power steering pump, power steering fluid, steering linkage. Brakes: Front brakes (discs, calipers, pads), rear brakes (drums or discs, calipers, pads/shoes), parking brake system, hydraulic lines, brake fluid, ABS system. Wheels Tires: Wheel specifications, tire pressure recommendations, tire rotation, wheel balancing. Body Exterior: Doors, hood, trunk lid, fenders, bumpers, body panels, glass, mirrors, exterior trim, latches, hinges. Body Interior: Seats, dashboard, instrument panel, door panels, headliner, carpeting, interior trim, seat belts, airbags (Supplemental Restraint System - SRS). Electrical Power Distribution: Battery, alternator, fuses, fusible links, relays, wiring harnesses, grounds. Lighting: Headlights, taillights, interior lights, fog lights, bulb types and replacement. Instrumentation Gauges: Instrument cluster, speed sensor, tachometer, fuel gauge, temperature gauge, warning lights, diagnostics. Audio Visual: Radio, speakers, antenna, wiring, installation and removal of components. Climate Control: Air conditioning system (compressor, condenser, evaporator, refrigerant), heater, blower motor, HVAC controls, cabin air filter. Safety Restraint System: Airbag modules, SRS control module, seat belt pre-tensioners, diagnostic procedures for SRS. Cruise Control: Cruise control module, actuators, switches, wiring, diagnostic procedures. Wiper Washer: Wiper motor, wiper arms, wiper blades, washer pump, washer fluid reservoir, nozzles, switches, wiring. Door Locks Security: Power door locks, central locking system, keyless entry, remote key fob, door lock actuators, wiring, alarm system, engine immobilizer. Multiplex Can Communication: Vehicle communication networks (e.g., CAN bus), module communication, diagnostic trouble codes (DTCs) related to network issues. Procedures Included Maintenance Procedures: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement, battery testing. Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble code (DTC) interpretation and clearing, wiring diagram analysis. Repair Procedures: Component removal and installation, rebuild procedures (e.g., engine, transmission), adjustments, calibration. Electrical Troubleshooting: Wiring schematic interpretation, continuity testing, voltage testing, component testing, circuit diagnosis. Mechanical Adjustments: Brake adjustment, clutch adjustment, parking brake adjustment, door/hood/trunk alignment. Technical Depth Depth: Comprehensive, from basic maintenance to complete engine and transmission overhauls, including advanced diagnostics and electrical system troubleshooting. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Print Quality Printability: All pages are printable. Binding Type Binding: N/A (Digital PDF Download) Paper Type Paper Type: N/A (Digital PDF Download) ⚙️ Engine Specifications Primary Engine Engine Options: 2.2L L61 Ecotec I4, 3.1L L82 GM V6, 3.8L L36 GM V6 Performance Horsepower Torque 2.2L: Approx. 140 HP / 145 lb-ft torque Horsepower Torque 3.1L: Approx. 150 HP / 185 lb-ft torque Horsepower Torque 3.8L: Approx. 190-205 HP / 220-245 lb-ft torque (depending on specific L36 variant) Fuel System Fuel Delivery: Multi-port Fuel Injection (MPFI) 🔧 Transmission Standard Transmission Type Standard: 4-speed automatic (e.g., 4T65-E) Optional Transmission Type Optional: 5-speed manual (less common, typically with 4-cylinder engines). Features Transmission Control: Electronic control with Transmission Control Module (TCM). 📐 Dimensions Exterior Body Style: 4-door Sedan, 4-door Coupe Weights Curb Weight Range: Approx. 3,200 - 3,500 lbs (depending on engine and trim) 🛡️ Safety Features Ratings NHTSA Front Impact Rating: Generally good for its era (refer to...