🏷️ Basic Information Identification Make: Cadillac Model: Seville STS Year: 1998-2004 Codes Platform: K-Body 👋 Introduction Market Position Target Audience: Owners, DIY Enthusiasts, Independent Repair Shops Value Proposition: Provides dealership-level technical information for vehicle-specific maintenance and repair, enabling cost savings and empowering owners. Competitive Analysis Uniqueness: Vehicle-specific, not generic; direct equivalent of dealership technician manual. Key Features Format Advantage: Single, easy-to-use PDF; print only needed pages; no physical wear and tear. Content Advantage: Comprehensive, factory-level detail including wiring schematics. 📋 Manual Details Coverage Areas Engine Coverage: Northstar V8 (4.6L) Transmission Coverage: 4-speed Automatic (4T80-E) Trim Level Coverage: STS (Seville Touring Sedan) Page Count Estimated Page Count: Extensive (Not Specified, but implies comprehensive) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Lubrication, Cooling, Ignition, Starting, Charging, Exhaust, Emission Control, Automatic Transmission Chassis: Suspension (Front and Rear), Steering (Power Steering, Steering Column), Brakes (Hydraulic, Parking Brake), Wheels and Tires Body & Electrical: Body Panels, Doors, Locks, Glass, Mirrors, Interior Trim, Seats, Instrument Panel, HVAC (Air Conditioning), Restraint Systems (Airbags, Seatbelts), Lighting, Wipers/Washers, Audio/Visual, Cruise Control, Engine Immobilizer, Multiplex/CAN Communication Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Inspections Diagnostics: Troubleshooting Flowcharts, Diagnostic Trouble Codes (DTCs), Component Testing Repair And Rebuild: Component Removal/Installation, Reassembly, Adjustments, Major Overhauls Technical Depth Depth: Complete A-Z Repair Information, Technician-Level Detail Detail Level: Step-by-step instructions, detailed diagrams, illustrations, wiring schematics 📊 Manual Specifications File Format Compatibility: Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac Requirements: Adobe PDF Reader, Winzip Print Quality Printability: Fully Printable (Page-by-Page or Sections) Image Scalability: Images can be blown up and printed enlarged Binding Type Binding: Digital (PDF) - No physical binding Paper Type Paper Type: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: L37 (4.6L) Engine Type: DOHC V8 (Northstar) Displacement: 4.6 Liters (281 cu in) Performance Horsepower Est: ~275-300 hp (Varies slightly by year) Torque Est: ~300-315 lb-ft (Varies slightly by year) Fuel System Fuel Delivery: Sequential Fuel Injection (SFI) Fuel Type: Premium Unleaded Gasoline (91 Octane Recommended) Cooling Cooling System Type: Pressurized Liquid Cooling System 🔧 Transmission Standard Transmission Type: 4-Speed Automatic Transmission Model: 4T80-E Features Drive Type: Front-Wheel Drive (FWD) Transmission Control: Electronic Control Module (ECM) / Transmission Control Module (TCM) Fluid Type: Dexron III (or equivalent) 📐 Dimensions Exterior Length: Approx. 202.4 inches Width: Approx. 74.9 inches Height: Approx. 55.3 inches Weights Curb Weight: Approx. 3,800 - 4,000 lbs (Varies by option) Gross Vehicle Weight Rating Gvw: Not Specified, but typical for class 🛡️ Safety Features Ratings NHTSA Frontal Crash Test Driver: 4-star (1998-2002 models, specific tests apply) NHTSA Frontal Crash Test Passenger: 4-star (1998-2002 models, specific tests apply) IIHS Frontal Offset: Good (for relevant years) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Stability Control: Available (StabiliTrak on later models) Passive Features Airbags: Driver and Passenger Frontal Airbags, Available Side Impact Airbags Seatbelts: 3-Point Front and Rear Seatbelts, Pretensioners 💡 Technology Features Infotainment Audio System: Premium Bose® sound system, optional CD changer. Climate Control: Dual-zone automatic climate control, StabiliTrak climate control on some models. Driver Assistance Adaptive Cruise Control: Optional on some models. Parking Assist: Optional Rear Park Assist (Ultrasonic). Connectivity Multiplex Communication: MPV (Multiplexed Vehicle Power) system and CAN communication for various modules. Navigation: Optional factory navigation system. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles or as per owner's manual, depending on driving conditions and oil type used. Transmission Fluid Service: Every 30,000-60,000 miles, depending on driving conditions and manufacturer recommendations. Spark Plug Replacement: Typically around 100,000 miles for platinum or iridium plugs used in Northstar engines. Fluid Specifications Engine Oil Specification: SAE 4W-5W30, GM dexos1™ or equivalent synthetic oil recommended for Northstar V8. Coolant Type: GM Blue or Dex-Cool® compatible coolant (50/50 mix with distilled water). Brake Fluid Type: DOT 3 Known Issues Engine Common Issue 1: Head Gasket Failure (especially on earlier Northstar engines, often due to faulty head bolts). Engine Common Issue 2: Intake Manifold Gasket Leaks (can lead to coolant or vacuum leaks). Suspension Common Issue: Front Strut Mounts and Ball Joints wear. Electrical Common Issue: Water pump seal leaks, alternator issues, power window regulators. 📚 Vehicle History Brand Heritage Cadillac Legacy: Cadillac has a long-standing reputation for luxury, comfort, and advanced technology in American automobiles. Model Evolution Seville Lineage: The Seville was Cadillac's flagship personal luxury sedan, evolving from rear-wheel drive to front-wheel drive with the introduction of the K-body platform. Sts Positioning: The STS (Seville Touring Sedan) variant emphasized performance and sportier handling compared to the base Seville. Production Production Period: 1998-2004 (This generation) Manufacturing Location: Hamtramck, Michigan, USA (Detroit/Hamtramck Assembly Plant) 🏆 Awards & Recognition Recognitions Car And Driver 10 Best: The Seville, particularly the STS, was often...