🏷️ Basic Information Identification Make: Dodge Model: Ram Truck Year: 1990 Codes Platform: Second Generation Dodge Ram Truck (DN platform) 👋 Introduction Market Position Target Audience: Dodge Ram Truck 1990 owners and DIY mechanics Competitive Analysis Authenticity: Actual Genuine Repair Service Factory Manuals (NOT 3rd party) Key Features Content Value: Provides knowledge of factory-trained technicians Cost Savings: Potential savings of $50-$60 per hour on labor costs Searchability: Search function for easy information retrieval Usability: Easy to use, no advanced computer skills required 📋 Manual Details Coverage Areas Coverage: All styles covered Page Count Estimated Pages: Hundreds of pages Manual Type Type: Factory Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Service: Engine Service / Repair Transmission Service: Transmission Service / Repair Brake System: Brake System Wiring Diagrams: Wiring Diagram Electrical System: Electrical System Suspension: Suspension Periodic Lubrication: Periodic Lubrication Steering: Steering Cooling System: Cooling System Fuel System: Fuel Injection / Fuel System Emission System: Emission System HVAC: Heater/ Air Conditional Engine Control: Engine Control System Chassis Body: Chassis / Body Restraint System: Restraint System Interior: Interior Differential: Differential / Drive Axle: Axle Procedures Included General Maintenance: General Maintenance Troubleshooting: Troubleshooting Repair Procedures: Step-by-step repair procedures Diagnostic Procedures: Diagnostic procedures Rebuild Procedures: Rebuild procedures Restoration Guidance: Restoration guidance Technical Depth Depth: Factory trained technician level Illustrations: Illustrations, diagrams, and photos Advanced Troubleshooting: Advanced troubleshooting guide Electrical Diagnostics: Electrical system diagnostics and repair 📊 Manual Specifications File Format Quality: High resolution Print Quality Printability: Printable without restriction (entire manual or selected pages) Binding Type Binding: N/A (Downloadable PDF) Paper Type Paper Type: N/A (Digital) Requirements Software Requirements: Adobe PDF Reader Delivery Delivery Method: Digital Download ⚙️ Engine Specifications Primary Engine Engine Options 1990 Ram: 3.9L Magnum V6, 5.2L Magnum V8, 5.9L Magnum V8 (Specific engines covered by manual not explicitly stated, but expected) Performance Performance Details: Manual likely includes horsepower, torque, and performance tuning specifications for various engine options. Fuel System Fuel System Type: Fuel Injection (EFI - Electronic Fuel Injection, and possibly carbureted on earlier models, though manual specifies 'Fuel Injection') 🔧 Transmission Standard Transmission Options 1990 Ram: Manual (NP435, NV4500) and Automatic (A500, A518, A727, A518/46RH) transmissions were available. Manual covers expected types. Optional Optional Transmissions: Covered if factory offered. Features Transmission Service Procedures: Rebuild, repair, and maintenance procedures for all factory transmissions. 📐 Dimensions Exterior Body Styles 1990 Ram: Regular Cab, Club Cab, Chassis Cab; Styleside and Fleetside bed options. Manual covers 'ALL STYLES'. Weights Weight Specifications: Curb weights, GVWR, GCWR for various configurations are expected to be within the manual. 🛡️ Safety Features Ratings Safety Ratings: Information regarding safety features and any available crash test data for the 1990 model year would be pertinent, though not explicitly guaranteed in description. Active Features Active Safety Features: Brake system diagnostics, steering system diagnostics. Passive Features Passive Safety Features: Restraint System (likely covers seatbelts, possibly airbags if equipped as an option in 1990). 💡 Technology Features Infotainment Infotainment Features 1990: Basic radio (AM/FM, possibly cassette) and climate controls. Manual covers HVAC system repair. Driver Assistance Driver Assistance Systems: Limited to basic safety systems; no modern ADAS features expected. Connectivity Connectivity Options: No factory connectivity features like Bluetooth or USB. 🔧 Maintenance Service Intervals Typical Intervals: Manual provides detailed factory recommended service intervals for oil changes, filter replacements, tune-ups, fluid checks, and more. Fluid Specifications Engine Oil Spec: Likely specifies API service classifications (e.g., SG or SH) and viscosity grades (e.g., 5W-30, 10W-30) based on temperature and engine type. Coolant Spec: Expect recommendations for ethylene glycol based coolant and specific antifreeze/water mixture ratios. Transmission Fluid Spec: Specifies appropriate ATF types (e.g., ATF+3, Dexron III) for automatic transmissions and gear oil for manual transmissions and differentials. Known Issues Common Problems 1990 Ram: Manual will guide diagnostics for common issues of the era, such as potential ignition system faults, fuel delivery problems, minor electrical gremlins, and wear-related suspension or brake components. Filter Part Numbers Oil Filter Part Number Example: While not provided, the manual would contain or direct to the correct Mopar or equivalent part numbers for oil filters, air filters, fuel filters, etc. 📚 Vehicle History Brand Heritage Dodge Truck Heritage: Dodge has a long history of producing robust trucks, with the Ram line being a cornerstone since 1981. Model Evolution Second Generation Ram: The 1990 model year falls within the second generation of the Dodge Ram trucks (1972-1993 for the original D/W series, with a significant redesign in 1994 for the third generation. The prompt specifies 1990, which is within the D/W generation, but some sources might consider the 1994 redesign as the start of a new generation. This manual specifically covers the 1990 model within its existing lineage.) Production Production Location: Dodge trucks in this era were primarily manufactured in North American plants...