The Buick Regal, produced from 1997 to 2004, represents a capable mid-size sedan offering a harmonious blend of comfort, refined styling, and performance. Known for its European-inspired design and a smooth, quiet ride, the Regal was engineered with quality and reliability in mind. This generation, particularly the LN3 platform, often featured the acclaimed 3800 Series II V6 engine, available in both naturally aspirated (L36) and supercharged (L67) variants, the latter earning multiple awards for its robust performance and efficiency. Its substantial dimensions and comfortable interior made it a strong contender in its segment, providing a premium American driving experience. This comprehensive Service and Repair Manual provides essential guidance for maintaining and repairing the Buick Regal. Covering over 1500 pages of detailed information in English, it encompasses a wide array of vehicle systems, including in-depth engine diagnosis and repair, automatic transmission service, brake system maintenance, suspension and steering component work, and complete electrical system schematics. The manual also details HVAC, body, and restraint system procedures, alongside routine maintenance schedules and troubleshooting guides for common issues. Its purpose is to empower owners and technicians with the knowledge required to keep the vehicle in optimal condition, ensuring its longevity and performance through accurate procedures and technical specifications. 🏷️ Basic Information Identification Make: Buick Model: Regal Year: 2000 Generation Generation Code: LN3 Generation Years: 1997-2004 👋 Introduction Market Position Market Segment: Mid-size sedan, targeting consumers seeking a blend of comfort, style, and performance within the GM lineup. Competitive Analysis Key Competitors: Ford Taurus, Chevrolet Impala, Toyota Camry, Honda Accord, Chrysler Concorde. Key Features Unique Selling Points: European-inspired styling, comfortable ride, available supercharged engine option (for Grand Prix, often shared platforms/engines). Manual Value Proposition Benefit To Owner: Empowers DIY repairs, reduces maintenance costs, improves understanding of vehicle systems, ensures correct procedures. 📋 Manual Details Coverage Areas Primary Coverage Area: North America Page Count Estimated Page Count: 1500+ Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: Digital (PDF Download) 📖 Manual Coverage Systems Covered Engine: Full coverage including diagnosis, repair, overhaul, timing, fuel injection, ignition, emissions. Transmission: Automatic transmission service, repair, diagnosis, fluid specifications, and component replacement. Brakes: Hydraulic system, ABS diagnosis and repair, brake pad/rotor replacement, caliper service. Suspension: Front and rear suspension components, shock absorbers, struts, control arms, wheel alignment procedures. Steering: Power steering system diagnosis and repair, steering column, steering rack/gearbox service. Electrical: Complete wiring diagrams, component testing, fuse and relay locations, starter, alternator, battery service. HVAC: Air conditioning system diagnosis and recharge, heater core replacement, climate control operation. Body: Body panel repair, door mechanisms, glass replacement, interior trim removal and installation. Restraints: Airbag system diagnosis and service, seatbelt operation. Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and top-offs, tune-up procedures, tire rotation. Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting, common issue identification and resolution. Repair: Step-by-step repair instructions for all major vehicle systems, including component replacement and overhaul. Diagnostics: OBD-II code interpretation, sensor testing, circuit analysis, using scan tools. Technical Depth Depth: Comprehensive coverage from basic scheduled maintenance to in-depth engine and transmission rebuilds, including electrical schematics. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval. Print Quality Print Readability: High-resolution graphics and text for clear printing and on-screen viewing. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code And Description: L36 (3.8L V6 OHV) naturally aspirated Engine Code And Description Optional: L67 (3.8L V6 OHV) Supercharged Performance L36 Horsepower L36: 200 hp @ 5200 rpm Torque L36: 225 lb-ft @ 3600 rpm Performance L67 Horsepower L67: 240 hp @ 5200 rpm Torque L67: 280 lb-ft @ 3600 rpm Fuel System Fuel Injection Type: Sequential Multi-Port Fuel Injection (MPFI) Recommended Fuel: 87 Octane Regular Unleaded (89 Octane for Supercharged) Engine Construction Block Material: Cast Iron Cylinder Head Material: Aluminum 🔧 Transmission Standard Transmission Type Standard: 4-Speed Automatic (4T65-E) Optional Transmission Type Optional: N/A for Regal (though similar platforms might offer alternatives) Features Transmission Features: Electronically controlled, driver-selectable modes (e.g., Normal, Sport). Fluid Specifications Transmission Fluid Type: Dexron III (or equivalent/newer specification) 📐 Dimensions Exterior Length: Approximately 196.9 inches Width: Approximately 71.5 inches Height: Approximately 56.1 inches Wheelbase: Approximately 109.0 inches Weights Curb Weight: Approximately 3400-3600 lbs (depending on trim and engine) 🛡️ Safety Features Ratings NHTSA Frontal Impact Driver: 5-Star NHTSA Frontal Impact Passenger: 5-Star IIHS Moderate Overlap Frontal Offset: Good Active Features ABS: Standard on all models Traction Control: Available on certain trims/as an option Passive Features Airbags: Driver and front passenger airbags standard, optional side-impact airbags. Seatbelts: 3-point front and rear seatbelts, pretensioners for front seats. 💡 Technology Features Infotainment Audio System Options: AM/FM stereo with cassette and CD player, premium audio system options (e.g., Bose). Climate Control: Manual or optional automatic climate control. Driver Assistance Cruise...