🏷️ Basic Information Identification Make: Chevrolet Model: K1500 Year: 1990 Model Code: GMT400 Vehicle Type: Light Duty Pickup Truck 👋 Introduction Market Position Market Position: Targeted at owners of the 1990 Chevrolet K1500 seeking detailed, accurate, and convenient repair and maintenance information, offering a significant cost-saving alternative to dealership service or expensive printed manuals. Competitive Analysis Competitive Advantage: Licensed OE information, instant online access, comprehensive coverage, and user-friendly digital format offer superior convenience and value compared to outdated printed manuals or generic online forums. Key Features Key Features: Officially licensed, factory-derived data, immediate access, broad system coverage, detailed diagnostic procedures, extensive repair instructions. 📋 Manual Details Coverage Manual Type: Service and Repair Manual Software Format Format: PDF Download Language Language: English Access Access Duration: 1 Year Subscription (with option for renewal) Compatibility Device Compatibility: PC, Laptop, Smartphone, Tablet (via web browser) 📖 Manual Coverage Systems Systems Covered: Engine, Drivetrain (4WD), Transmission, Brakes, Steering, Suspension, Cooling System, Fuel System, Exhaust System, Electrical System, HVAC (Heating, Ventilation, and Air Conditioning), Bodywork, Interior Components, Wiring Diagrams Procedures Procedures Included: Routine Maintenance, Diagnostic Procedures, Repair and Overhaul, Component Replacement, Troubleshooting Guides, Technical Specifications, Torque Values, Fluid Capacities, Wiring Harness Repairs, Emissions Controls, Suspension Alignment, Brake System Servicing, Engine Performance Tuning Depth Technical Depth: Comprehensive factory-derived information suitable for DIY enthusiasts and professional technicians, covering everything from basic service to major component rebuilds. 📊 Manual Specifications File Details File Quality: High-resolution, searchable text and diagrams derived from OE (Original Equipment) materials. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Options 1990 K1500: 4.3L V6 (VIN 'Z'), 5.0L V8 (VIN 'E'), 5.7L V8 (VIN 'K') Engine Details 4 3L V6 Engine Code 4 3L V6: LV3 Displacement 4 3L V6: 262 cubic inches (4.3 Liters) Horsepower 4 3L V6: Approx. 160 HP @ 4000 RPM Torque 4 3L V6: Approx. 230 lb-ft @ 2400 RPM Engine Details 5 0L V8 Engine Code 5 0L V8: L03 Displacement 5 0L V8: 305 cubic inches (5.0 Liters) Horsepower 5 0L V8: Approx. 175 HP @ 4000 RPM Torque 5 0L V8: Approx. 270 lb-ft @ 2400 RPM Engine Details 5 7L V8 Engine Code 5 7L V8: L05 Displacement 5 7L V8: 350 cubic inches (5.7 Liters) Horsepower 5 7L V8: Approx. 210 HP @ 4000 RPM Torque 5 7L V8: Approx. 300 lb-ft @ 2400 RPM Fuel System Fuel System Type: Electronic Fuel Injection (EFI), Sequential Fuel Injection (SFI) for 5.7L Ignition System Ignition System Type: Distributorless Ignition System (DIS) for 4.3L V6, Traditional Distributor for V8s. 🔧 Transmission Standard Transmission Standard Transmission Type: 4-Speed Automatic (e.g., 4L60) for most configurations. Manual transmissions were available on some models but less common. Optional Transmission Optional Transmission Type: 5-Speed Manual (e.g., Getrag 5LM60) may have been available on specific configurations. Drivetrain Drivetrain Options: 4WD (K1500 designation) Transmission Fluid Automatic Transmission Fluid Type: Dexron-III (or equivalent) 📐 Dimensions Exterior Dimensions Wheelbase Short Bed: 118.0 inches Wheelbase Long Bed: 131.5 inches Overall Length Short Bed: 194.1 inches Overall Length Long Bed: 217.6 inches Weights Curb Weight Range: Approximately 4200-4700 lbs, depending on configuration. Payload Capacity Range: Approximately 1500-2000 lbs, depending on configuration. 🛡️ Safety Features Passive Features Passive Safety Features: Seatbelts, Crumple Zones (as per 1990 standards). Ratings NHTSA Ratings 1990: Specific NHTSA ratings for 1990 models are not readily available in a standardized format; however, the GMT400 platform was a significant step forward in truck safety for its era. 💡 Technology Features Infotainment Infotainment Features 1990: Standard AM/FM radio, optional cassette player, optional CD player, analog gauges, basic climate controls. Driver Assistance Driver Assistance Features 1990: Anti-lock Braking System (ABS) available as an option. Connectivity Connectivity Features 1990: No modern connectivity features (e.g., Bluetooth, USB) were available. 🔧 Maintenance Service Intervals General Oil Change Interval: Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used. Tire Rotation Interval: Every 5,000-7,500 miles. Spark Plug Replacement Interval: Varies by plug type, often around 30,000-60,000 miles for standard plugs, higher for platinum or iridium. Fluid Specifications Engine Oil Type: API SF or SG, SAE 10W-30 recommended for most ambient temperatures (consult manual for specific exceptions). Coolant Type: Ethylene Glycol based, typically a green coolant meeting GM specifications. Brake Fluid Type: DOT 3 Power Steering Fluid Type: Dexron-II or Dexron-III Known Issues Common Issues Gmt400: Vortec engine performance issues (if applicable to later years), rear main seal leaks, dashboard cracks, HVAC actuator failures, ABS system issues, transmission fluid leaks, suspension component wear (ball joints, bushings). Filter Part Numbers Oil Filter Example: ACDelco PF2 or equivalent (e.g., Fram PH8A, Wix 51515) Air Filter Example: ACDelco A1854C or equivalent 📚 Vehicle History Brand Heritage Chevrolet Truck Heritage: Chevrolet has a long and distinguished history in the pickup truck market,...