🏷️ Basic Information Identification Make: Dodge Model: Ram Truck Year: 1990 👋 Introduction Market Position Segment: Full-size pickup truck. Target Audience: DIY mechanics, professional technicians, fleet maintenance personnel. Competitive Analysis Competitors: Ford F-Series, Chevrolet C/K series. Key Features Durability: Known for its robust construction and durability, often used for heavy-duty tasks. Versatility: Available in various configurations including 2WD and 4WD, regular cab, extended cab, and different bed lengths. 📋 Manual Details Coverage Areas General Coverage: Complete service, repair, and diagnostic information for the 1990 Dodge Ram Truck. Page Count Estimated Pages: 1000+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed procedures for disassembly, inspection, repair, and reassembly of all engine components, including the cylinder head, block, crankshaft, connecting rods, pistons, camshaft, and valvetrain. Engine Performance: Diagnosis and repair of engine performance issues, including misfires, rough idling, power loss, and poor fuel economy. Fuel System: Inspection, testing, and repair of the fuel injection system (MPI), fuel pump, fuel pressure regulator, injectors, fuel filter, and fuel tank. Cooling System: Service and repair of the radiator, water pump, thermostat, hoses, coolant, and cooling fan. Exhaust System: Diagnosis and repair of exhaust leaks, catalytic converter issues, muffler and pipe replacement. Ignition System: Testing and replacement of spark plugs, ignition coils, distributor (if applicable), ignition control module (ICM). Transmission Manual: Service and repair procedures for manual transmissions, including clutch inspection, replacement, and transmission disassembly/reassembly. Transmission Automatic: Diagnosis, fluid service, and repair procedures for automatic transmissions, including torque converter and transmission control systems. Drivetrain: Service and repair of the driveshaft, U-joints, differential, axles, and hub assemblies. Suspension System: Inspection and replacement of shocks, struts, springs, control arms, ball joints, bushings, and steering components. Steering System: Diagnosis and repair of power steering pump, steering gear, tie rods, and steering column. Brake System: Service and repair of disc and drum brakes, including brake pads, rotors, calipers, wheel cylinders, brake lines, master cylinder, and brake fluid. Electrical System: Comprehensive wiring diagrams, component testing, and troubleshooting for the entire electrical system. Lighting System: Headlights, taillights, interior lighting, and auxiliary lighting diagnostics and repair. Charging System: Testing and replacement of alternator, voltage regulator, and battery. Starting System: Diagnosis and repair of the starter motor, solenoid, and ignition switch. Body And Frame: Information on body panel repair, door mechanisms, glass replacement, and frame straightening procedures. Interior Trim: Removal and installation procedures for seats, dashboard components, door panels, and headliner. HVAC System: Service and repair of the air conditioning system, heater core, blower motor, and climate controls. Diagnostics: Troubleshooting charts and diagnostic procedures for common problems across all vehicle systems. Procedures Included Maintenance: Scheduled maintenance procedures, fluid changes, filter replacements, lubrication points, and inspection routines. Troubleshooting: Systematic diagnostic steps for identifying and resolving a wide range of vehicle issues. Repair: Detailed step-by-step instructions for component removal, repair, and reinstallation. Disassembly Reassembly: Comprehensive guides for taking apart and putting back together major vehicle sub-assemblies. Torque Specifications: Precise torque values for all critical fasteners to ensure proper assembly and prevent component failure. Wiring Diagrams: Detailed and color-coded electrical schematics for all vehicle circuits. Special Tools: Identification of and procedures for using any specialized tools required for specific repairs. Technical Depth Depth: Comprehensive, covering everything from basic fluid checks and filter changes to complete engine and transmission overhauls. 📊 Manual Specifications File Format Searchability: Searchable text for quick access to information. Printability: Printable pages for on-the-job use. Print Quality Image Resolution: High-resolution images and diagrams for clarity. Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Option 1: 3.9L V6 (Magnum) Displacement V6: 3.9 liters / 239 cubic inches Horsepower V6: Approximately 170-175 hp (varies slightly by tune) Torque V6: Approximately 220-230 lb-ft (varies slightly by tune) Engine Option 2: 5.2L V8 (Magnum) Displacement V8 52L: 5.2 liters / 318 cubic inches Horsepower V8 52L: Approximately 190-200 hp (varies slightly by tune) Torque V8 52L: Approximately 285-300 lb-ft (varies slightly by tune) Engine Option 3: 5.9L V8 (Magnum) Displacement V8 59L: 5.9 liters / 360 cubic inches Horsepower V8 59L: Approximately 230-235 hp (varies slightly by tune) Torque V8 59L: Approximately 330-345 lb-ft (varies slightly by tune) Fuel System Induction Type: Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded gasoline Performance Redline: Typically around 5000-5500 RPM, varies by engine. 🔧 Transmission Standard Standard Transmission: 5-speed manual (A500/NV3500 variations) Optional Optional Transmission: 4-speed automatic (A518/46RH) Features Automatic Features: Electronic overdrive, lock-up torque converter. Fluid Specifications Automatic Transmission Fluid: Chrysler ATF+3 (or equivalent, e.g., Dexron III/Mercon in many cases for older models, consult specific VIN). Manual Transmission Fluid: GL-3 or GL-4 gear oil, SAE 75W-90 or 80W-90. 📐 Dimensions Exterior Wheelbase Options: Approximately 112.1 inches (standard cab) and 124.7 inches (long bed). Overall Length Options: Varies...