🏷️ Basic Information Identification Make: Kia Model: Optima Year: 2004 Codes Chassis Code: MS 👋 Introduction Market Position Segment: Mid-size Sedan Competitors 2004: Toyota Camry, Honda Accord, Nissan Altima, Ford Fusion, Chevrolet Malibu. Competitive Analysis Value Proposition: The Kia Optima (MS) offered competitive styling, a spacious interior, and a strong value proposition compared to its more established Japanese and American rivals, aiming to capture market share through affordability and features. Key Features Powertrain Options: Available with a fuel-efficient 2.4L inline-four or a more powerful 2.7L V6 engine, paired with either a manual or automatic transmission, providing options for different driving preferences and needs. Styling: Featured a European-influenced design aesthetic for its generation, contributing to a more sophisticated appearance than some of its predecessors. 📋 Manual Details Coverage Areas Engine Variants Covered: 2.4L Inline-4 (G4JS), 2.7L V6 (G6BA) Transmission Variants Covered: 4-speed Automatic, 5-speed Manual Trim Levels Covered: All trims (e.g., LX, EX) Page Count Estimated Page Count: 1000+ Manual Type Type: Service and Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block, crankshaft, pistons, connecting rods, lubrication system, cooling system, timing belt/chain, valve train. Fuel System: Fuel tank, fuel pump, fuel injectors, fuel pressure regulator, fuel filter, evaporative emission control (EVAP). Ignition System: Ignition coils, spark plugs, crankshaft position sensor, camshaft position sensor. Exhaust System: Exhaust manifold, catalytic converter, muffler, oxygen sensors (O2 sensors). Transmission Manual: Clutch system, gearbox assembly, gears, synchronizers, shift mechanism. Transmission Automatic: Torque converter, valve body, planetary gear sets, hydraulic control system, transmission control module (TCM). Drivetrain: Front-wheel drive (FWD) components, axles, CV joints, differential. Suspension: Front suspension (struts, control arms, ball joints), rear suspension (multi-link or independent), springs, shock absorbers, sway bars. Steering: Power steering system (hydraulic pump, steering rack, hoses), steering column, tie rods. Brakes: Front and rear disc brakes, brake calipers, brake pads, brake rotors, master cylinder, brake booster, ABS (Anti-lock Braking System) components, parking brake. Electrical System: Battery, alternator, starter motor, wiring diagrams, fuses, relays, lighting system (headlights, taillights, interior lights), horn. Body And Chassis: Frame structure, body panels, doors, hood, trunk, glass, interior trim, bumpers. Heating Ventilation Air Conditioning HVAC: A/C compressor, condenser, evaporator, blower motor, climate control panel, refrigerant lines, heater core. Driver Information System: Instrument cluster, gauges, warning lights, trip computer. Procedures Included Maintenance Tasks: Oil and filter change, air filter replacement, cabin air filter replacement, spark plug replacement, coolant flush, brake fluid replacement, transmission fluid change, drive belt inspection/replacement. Diagnostic Procedures: Troubleshooting guides for common symptoms, diagnostic trouble codes (DTCs) interpretation, on-board diagnostics (OBD-II) information. Repair Procedures: Component removal and installation for all major systems, engine overhaul, transmission overhaul, brake caliper rebuild, suspension component replacement, electrical component repair. Engine Repair: Detailed steps for cylinder head gasket replacement, piston ring replacement, crankshaft seal replacement, timing belt/chain system service. Transmission Repair: Internal transmission component replacement, solenoid testing, valve body service, torque converter replacement. Electrical Diagnostics: Component testing, circuit diagnosis using wiring diagrams, troubleshooting electrical faults. HVAC Service: Refrigerant charging, leak detection, component replacement (compressor, evaporator), blower motor service. Brake System Service: Brake pad and rotor replacement, caliper service, bleeding the brake system, ABS system diagnostics. Technical Depth Depth: Comprehensive - covers basic maintenance to full engine and transmission rebuilds, including electrical diagnostics and troubleshooting. Detail Level: Includes torque specifications, tightening sequences, specific tool requirements, and step-by-step illustrated instructions. 📊 Manual Specifications File Format Type: PDF Searchability: Searchable text content for quick information retrieval. Print Quality Quality: High-resolution digital reproduction, suitable for printing individual pages or the entire manual. Binding Type Type: N/A (Digital Download) Paper Type Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine 1 Type: Inline-4 Engine 1 Displacement: 2.4 Liters (2351 cc) Engine 1 Code: G4JS Engine 1 Bore X Stroke: 86.0 mm x 100.0 mm Engine 1 Compression Ratio: 9.7:1 Engine 1 Horsepower: 144 hp @ 5500 rpm Engine 1 Torque: 153 lb-ft @ 4000 rpm Secondary Engine Engine 2 Type: V6 Engine 2 Displacement: 2.7 Liters (2656 cc) Engine 2 Code: G6BA Engine 2 Bore X Stroke: 86.7 mm x 75.0 mm Engine 2 Compression Ratio: 9.6:1 Engine 2 Horsepower: 170 hp @ 6000 rpm Engine 2 Torque: 180 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Multi-port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline Fuel Tank Capacity: 14.4 gallons (54.5 Liters) 🔧 Transmission Standard Type: 5-speed Manual Transmission Optional Type: 4-speed Automatic Transmission Features Automatic Features: Electronically controlled, with lock-up torque converter. Manual Gear Ratios: Refer to manual for specific ratios by gear. Automatic Gear Ratios: Refer to manual for specific ratios by gear. 📐 Dimensions Exterior Length: 187.4 inches (4760 mm) Width: 70.1 inches (1780 mm) Height: 57.3 inches (1455 mm) Wheelbase: 106.3 inches (2700 mm) Front Track: 60.4 inches (1535 mm) Rear Track: 60.2 inches (1530 mm) Ground...