🏷️ Basic Information Identification Make: Chevrolet Model: Corvette Generation: C4 Model Year: 1990 Codes Chassis Code: C4 👋 Introduction Market Position Positioning: Direct replacement for dealership technician manuals, offering expert-level repair information for the enthusiast or independent mechanic. Competitive Analysis Advantage: Vehicle-specific, not generic. Provides the exact information used by factory-trained technicians, ensuring accuracy and completeness. Key Features Ease Of Use: Single, easy-to-use PDF manual eliminating the need to flip through multiple physical books. Printable pages for convenience in the workshop. 📋 Manual Details Coverage Areas Primary Coverage: All models and all repairs A-Z for the 1990 Chevrolet Corvette C4 Page Count Estimated Page Count: Estimated 2000+ pages (typical for comprehensive factory service manuals) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, diagnosis, rebuilding, component specifications Engine Control System: ECM diagnostics, sensors, actuators, fuel injection, ignition timing, emission controls Fuel System: Fuel pump, injectors, lines, tank, pressure regulation, service specifications Emission Control: EGR system, PCV system, evaporative emissions, catalytic converter, diagnostics Cooling System: Radiator, thermostat, water pump, fan, hoses, coolant specifications Lubrication System: Oil pump, oil filter, oil pressure, oil specifications Ignition Starting Charging: Spark plugs, coils, distributor, battery, alternator, starter motor, wiring Automatic Transmission: Diagnosis, overhaul, fluid specifications, electronic controls (if applicable) Manual Transmission: Diagnosis, overhaul, clutch operation, fluid specifications Drivetrain: Driveshaft, U-joints, differential, axle shafts, wheel bearings Suspension System: Front and rear suspension components, alignment, shocks, springs, bushings Steering System: Steering column, power steering pump, rack and pinion, tie rods, alignment Brake System: Front and rear brakes, rotors, pads, calipers, lines, ABS system, parking brake Wheel And Tire: Tire specifications, wheel torque, balancing, rotation Climate Control HVAC: Air conditioning system, heater, ventilation, refrigerant, diagnosis Supplemental Restraint System Srs: Airbag system diagnosis and service (cautionary procedures emphasized) Seat Belts: Seat belt operation, inspection, and replacement Engine Immobilizer: If equipped, system operation and diagnosis Cruise Control: System diagnosis and repair Wiper And Washer System: Wiper motor, blades, washer pump, fluid reservoir Door Lock System: Power door locks, manual locks, diagnosis Meter Audio Visual: Instrument cluster, gauges, radio system, speakers Horn System: Horn operation, relay, switch Glass And Mirrors: Windshield, side glass, rear glass, mirrors, replacement Instrument Panel: Removal, installation, diagnosis of dashboard components Seats: Seat adjustment mechanisms, trim, diagnosis Body And Exterior: Hood, doors, panels, trim, exterior lighting Interior Trim: Door panels, console, headliner, carpet, diagnosis Electrical System: Wiring diagrams, component testing, fuses, relays, power distribution Multiplex Can Communication: Diagnosis and understanding of multiplexed systems (if applicable to specific components) Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, inspections Diagnostic Procedures: Troubleshooting guides, symptom-to-cause analysis, diagnostic trouble codes (DTCs) Repair Procedures: Step-by-step instructions for component removal, installation, and repair Rebuilding Procedures: Comprehensive instructions for engine, transmission, and other major component overhauls Wiring Schematics: Detailed electrical system wiring diagrams for all circuits Illustrations And Diagrams: Extensive use of diagrams, illustrations, and exploded views for clarity Technical Depth Depth: Factory-level, covering everything from basic maintenance to complete vehicle overhaul and advanced diagnostics 📊 Manual Specifications File Format Compatibility: Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, and Mac compatible Print Quality Printability: All pages are printable, with the ability to enlarge images Binding Type Binding: Digital PDF format (eliminates physical binding issues) Paper Type Digital Format Benefit: No greasy or torn paper manuals; safe storage on PC Software Requirements Required Software: Adobe PDF Reader and Winzip (free online) ⚙️ Engine Specifications Primary Engine Engine Type: 5.7L L98 V8 (Tunable Port Injection - TPI) Performance Horsepower: 245 hp @ 4,000 rpm (approximate) Torque: 345 lb-ft @ 3,200 rpm (approximate) Fuel System Injection System: Tuned Port Injection (TPI) Fuel Type: Unleaded Gasoline (87 octane minimum recommended, 91+ for optimal performance) 🔧 Transmission Standard Transmission Type: 4-speed Automatic Transmission (4L60/700-R4) Optional Transmission Type Optional: 7-speed Manual Transmission (ZF S6-40) Features Automatic Transmission Fluid: Dexron-III / Mercon automatic transmission fluid (ATF) 📐 Dimensions Exterior Wheelbase: 96.2 inches Length: 178.5 inches Width: 70.4 inches Height: 46.3 inches Weights Curb Weight: Approximately 3200-3300 lbs (varies by option) 🛡️ Safety Features Ratings Crash Test Data: Information on structural integrity and occupant protection as per 1990 safety standards (manual will detail specific occupant safety systems). Active Features ABS: Anti-lock Braking System (ABS) standard on all models. Passive Features Airbags: Driver's side airbag standard. Seat Belts: Three-point inertia-reel seat belts. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with cassette player and optional CD player. Speaker configuration varies by trim. Driver Assistance Cruise Control: Electronic cruise control system. Connectivity Diagnostic Ports: OBD-I diagnostic connector for engine management system. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 miles or 6 months (refer to manual for specific conditions and oil type). Transmission Fluid Change: Every 30,000 - 60,000 miles (refer...