🏷️ Basic Information Identification Make: Hyundai Model: Sonata Year: 1999 Generation Generation Code: Y-2 (Third Generation) Codes Chassis Code: Y2 👋 Introduction Market Position Segment: Mid-size Sedan Target Audience: DIY Enthusiasts, Independent Repair Shops, Hyundai Owners Competitive Analysis Alternatives: Haynes, Chilton manuals (often less comprehensive) Key Features Convenience: Instant online access, works on multiple devices Licensing: Officially Licensed, OE Derived Information Cost Effectiveness: Saves money compared to professional repair shops 📋 Manual Details Coverage Areas Primary Coverage: Complete Service and Repair Secondary Coverage: Maintenance, Diagnostics, Troubleshooting Page Count Estimated Pages: 1500+ Manual Type Type: Software-based Service and Repair Manual Language Language: English Format Format: Online Digital Access (Yearly Subscription) 📖 Manual Coverage Systems Covered Engine: 2.5L V6 (G6A) and 2.0L 4-Cylinder (FB20) Transmission: 4-speed Automatic (F4A42) and 5-speed Manual Brakes: Front Disc (Ventilated), Rear Disc, ABS Systems Suspension: Front MacPherson Strut, Rear Multi-Link Steering: Power Assisted Rack and Pinion Electrical: Full Wiring Diagrams, Lighting, Ignition, Charging System, ECU HVAC: Heating, Ventilation, Air Conditioning Systems Body: Body Panels, Doors, Glass, Interior Trim, Body Repair Procedures Included Maintenance: Oil Changes, Filter Replacements, Spark Plugs, Fluid Checks and Top-offs Repair: Engine Overhaul, Transmission Overhaul, Brake Caliper Replacement, Suspension Component Replacement, Electrical Component Diagnosis and Replacement Troubleshooting: Diagnostic Trouble Codes (DTCs), Symptom-Based Diagnosis, Electrical Troubleshooting Charts Diagnostics: Engine Performance Diagnostics, Emission System Diagnosis, ABS System Diagnostics Technical Depth Depth: Comprehensive OE-Level Detail Accuracy: Licensed from OE Materials 📊 Manual Specifications File Format Format Detail: Web-based accessible via browser Print Quality Printability: Printable sections for offline use Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Code: G6A Configuration: 2.5L V6, DOHC Displacement: 2493 cc (2.5 Liters) Bore X Stroke: 83.5 mm x 77.0 mm Compression Ratio: 9.0:1 Horsepower: 168 hp @ 6000 rpm Torque: 175 lb-ft @ 4000 rpm Fuel System Induction: Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) Secondary Engine Engine Code: FB20 Configuration: 2.0L Inline-4, DOHC Displacement: 1998 cc (2.0 Liters) Horsepower: 138 hp @ 6000 rpm Torque: 137 lb-ft @ 4000 rpm 🔧 Transmission Standard Type: 4-Speed Automatic Transmission Code: F4A42 Optional Type: 5-Speed Manual Features Fluid Type: ATF SP-III (Automatic), SAE 75W-90 GL-4 (Manual) 📐 Dimensions Exterior Length: 186.2 inches (4729 mm) Width: 70.1 inches (1780 mm) Height: 55.1 inches (1400 mm) Wheelbase: 106.3 inches (2700 mm) Weights Curb Weight Min: 3241 lbs (1470 kg) Curb Weight Max: 3362 lbs (1525 kg) 🛡️ Safety Features Ratings NHTSA Driver Front Impact: Not Rated NHTSA Passenger Front Impact: Not Rated Active Features ABS: Available on higher trims Passive Features Airbags: Driver and Passenger Frontal Airbags Seatbelts: 3-point front and rear seatbelts 💡 Technology Features Infotainment Audio System: AM/FM Stereo with Cassette Player and CD Player (optional) Speakers: 4-6 speaker configurations Driver Assistance Cruise Control: Standard on most trims Connectivity Phone Integration: None (pre-Bluetooth era) 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles (6,000 km) or 6 months, whichever comes first (under normal driving conditions). Engine Oil Filter Replacement: At every oil change. Air Cleaner Filter Replacement: Every 15,000 miles (24,000 km) or 12 months. Spark Plug Replacement: Every 60,000 miles (96,000 km) for standard plugs, consult manual for iridium/platinum. Fluid Specifications Engine Oil Type: API SJ or higher, SAE 5W-30 Recommended (check manual for variations) Engine Coolant Type: Ethylene Glycol based coolant (Blue) Brake Fluid Type: DOT 3 Known Issues Engine Oil Leaks: Common for valve cover gaskets and oil pan gaskets to leak over time. Suspension Wear: Struts, ball joints, and bushings can wear, leading to noise and poor handling. Automatic Transmission Slipping: Can occur with age and mileage, often related to fluid condition or internal wear. HVAC System Failures: Compressor clutch issues or refrigerant leaks can affect A/C performance. 📚 Vehicle History Brand Heritage Manufacturer Origin: South Korea Model Evolution Generation Introduction: 1999 saw the introduction of the second generation Sonata (Y-2) with updated styling and improved chassis. Production Manufacturing Locations: Ulsan, South Korea 🏆 Awards & Recognition Recognitions Safety Awards: No specific major safety awards reported for this model year in common databases. Ratings Consumer Reports Reliability: Generally mixed to average for the era. Specific model year data may vary.