🏷️ Basic Information Identification Make: Dodge Model: Ram Pickup Year: 2003 Sub Models Covered: 1500, 2500, 3500 Generation Third Generation Designation: DR/DH/D2 Codes Platform: Third Generation Ram (2002-2008) 👋 Introduction Market Position Segment: Full-size Pickup Truck Target Audience: Owner-operators, professional mechanics, fleet maintenance Competitive Analysis Key Competitors: Ford F-Series, Chevrolet Silverado/GMC Sierra, Toyota Tundra Key Features Vehicle Strengths: Robust chassis, powerful engine options (especially Cummins diesel), spacious cabin, towing capacity Manual Value Proposition: Provides factory-level repair and maintenance data, crucial for DIY mechanics and professional service centers alike. 📋 Manual Details Coverage Areas Primary Coverage: Mechanical, Electrical, Body, Maintenance, Troubleshooting Secondary Coverage: Diagnosis, Wiring Diagrams, Specifications, Emissions Page Count Estimated Page Count: 1000+ Manual Type Type: Factory Service Manual (FSM) Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: 3.7L Magnum V6, 4.7L Magnum V8, 5.9L Magnum V8 (Gas), 5.9L Cummins Turbo Diesel I6 Engine Performance: Fuel Injection, Ignition, Cooling, Lubrication, Exhaust Transmission: NV3500 (5-speed manual), NV4500 (5-speed manual), 45RFE/545RFE (4-speed automatic), 47RE (4-speed automatic) Drivetrain: 4x2 and 4x4 Systems, Transfer Case, Driveshafts, Axles (Front & Rear) Brakes: Front/Rear Disc Brakes, ABS (Anti-lock Braking System), Parking Brake Suspension: Front Independent Suspension (IFS), Rear Solid Axle, Leaf Springs, Shock Absorbers Steering: Power Steering System, Steering Gearbox, Tie Rods Electrical: Battery, Charging System, Starting System, Lighting, Instruments, Accessories HVAC: Heating, Ventilation, Air Conditioning (A/C) System Body: Body Panels, Doors, Glass, Seats, Interior Trim, Bumpers Safety Systems: Airbags, Seatbelts, Child Restraint Anchors Procedures Included Maintenance: Oil Changes, Filter Replacements, Fluid Checks, Lubrication, Spark Plug Replacement Diagnostics: Troubleshooting Charts, DTC (Diagnostic Trouble Code) Lookups, Symptom-Based Diagnosis Repair: Engine Overhaul, Transmission Rebuild, Brake Component Replacement, Suspension Component Replacement Assembly Disassembly: Step-by-step instructions for component removal and installation Wiring Diagrams: Detailed electrical circuit diagrams for all systems Technical Depth Depth: Comprehensive: Covers basic maintenance to complete engine and transmission overhauls, including advanced diagnostics and electrical troubleshooting. 📊 Manual Specifications File Format File Type: PDF Searchability: Fully searchable text content Print Quality Quality: High-resolution, clear illustrations and text Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Base Engine: 3.7L Magnum V6 Optional Engines: 4.7L Magnum V8, 5.9L Magnum V8 (Gas), 5.9L Cummins Turbo Diesel I6 Performance 3.7L V6 Horsepower: 215 hp @ 5200 rpm 3.7L V6 Torque: 235 lb-ft @ 4000 rpm 4.7L V8 Horsepower: 235 hp @ 4600 rpm 4.7L V8 Torque: 300 lb-ft @ 3200 rpm 5.9L V8 Gas Horsepower: 245 hp @ 4000 rpm 5.9L V8 Gas Torque: 330 lb-ft @ 3200 rpm 5.9L Cummins Hp: 235 hp @ 2900 rpm 5.9L Cummins Torque: 460 lb-ft @ 1400 rpm Fuel System Gasoline Engines: Sequential Multi-Port Fuel Injection (MPI) Diesel Engine: High-Pressure Common Rail (HPCR) Technical Details Valvetrain: OHV (Overhead Valve) for Magnum V6/V8, SOHC (Single Overhead Cam) for 4.7L V8, OHV for Cummins I6 Bore Stroke: Varies by engine (detailed in manual) Compression Ratio: Varies by engine (detailed in manual) 🔧 Transmission Standard Standard Transmission 1500: NV3500 5-Speed Manual Standard Transmission 2500/3500: NV4500 5-Speed Manual (Gas V8), 47RE 4-Speed Automatic (Gas V8) Optional Optional Transmission 1500: 45RFE/545RFE 4-Speed Automatic Optional Transmission 2500/3500 Diesel: NV4500 5-Speed Manual (Diesel), 47RE 4-Speed Automatic (Diesel) Features Automatic Transmission Features: Electronically controlled, Overdrive Fluid Specifications 45Rfe/545Rfe Fluid: ATF+4 (MS-9602) 47Re Fluid: ATF+3 (MS-9224) Manual Transmission Fluid: GL-3 or GL-4 gear oil (specific viscosity in manual) 📐 Dimensions Exterior Wheelbase Options: 131.3" (Regular Cab), 140.5" (Club Cab), 160.5" (Mega Cab - 1500 only) Overall Length: Varies by configuration (detailed in manual) Bed Length Options: 6'4" (Short Bed), 8'0" (Long Bed) Weights Curb Weight Range: Approx. 4,800 - 7,000 lbs (varies by configuration and engine) Gross Vehicle Weight Rating Gvwr: Varies by model (e.g., 6,050 lbs for 1500, up to 11,500 lbs for 3500 DRW) Towing Capacity: Up to 10,000+ lbs (highly dependent on configuration, engine, axle ratio, and trailer brake controller) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 3-star (varies slightly by configuration) IIHS Crash Test Ratings: Good in frontal offset (varies by year and specific test) Active Features ABS: Standard on all models Traction Control: Available on some models Passive Features Airbags: Driver and Passenger Frontal Airbags Seatbelts: Three-point lap and shoulder belts 💡 Technology Features Infotainment Audio System: AM/FM Radio with CD Player (optional premium audio with subwoofer) Navigation: Not available from factory Driver Assistance Cruise Control: Standard on most trims Parking Assist: Not available from factory Connectivity Auxiliary Input: Not available from factory Power Outlets: 12V power outlets 🔧 Maintenance Service Intervals Oil Change Interval Gasoline: Every 3,000-7,500 miles or 6 months (dependent on oil type and driving conditions; refer to manual) Oil Change Interval Cummins: Every 7,500 miles or 6 months (using proper diesel oil) Air Filter Replacement: Every 12,000-15,000 miles or as needed based on inspection Fuel Filter Replacement Cummins:...