🏷️ Basic Information Identification Make: Nissan UD Model: 1200 / 1400 Model Years Covered: 1999, 2000, 2001, 2002, 2003, 2004 Codes Chassis Codes: Likely various, specific to chassis configurations of 1200/1400 series 👋 Introduction Market Position Vehicle Segment: Light-duty commercial truck / Cab-over truck Competitive Analysis Competitors: Isuzu NPR, Mitsubishi Fuso FE, Hino 145/155 Key Features Vehicle Purpose: Designed for urban delivery, cargo transport, and light commercial applications. 📋 Manual Details Coverage Areas Manual Type: Service Repair Manual Language: English Format: PDF Page Count Page Count: 1164 📖 Manual Coverage Systems Covered Engine: Detailed coverage of engine components, systems, diagnostics, and repair procedures. Maintenance Lubrication: Comprehensive scheduled maintenance, fluid types, capacities, and lubrication points. Trouble Diagnosis: Systematic troubleshooting guides, symptom analysis, and diagnostic procedures. Chassis: In-depth coverage of chassis components including suspension, steering, braking, and alignment. Engine Mechanical: Cylinder head, pistons, crankshaft, camshaft, timing components, lubrication system. Engine Fuel System: Fuel tank, lines, pump, filters, injectors, injection pump. Engine Cooling System: Radiator, fan, water pump, thermostat, hoses. Engine Exhaust System: Manifolds, pipes, muffler, catalytic converter (if applicable). Transmission Manual: Gearbox, clutch, shifter mechanism, driveshafts. Transmission Automatic: Torque converter, planetary gears, valve body, solenoids, transmission control module (if applicable). Braking System: Master cylinder, brake lines, calipers, pads, rotors, parking brake. Steering System: Steering wheel, steering column, steering gear, power steering pump, hoses, tie rods. Suspension System: Front and rear suspension, shock absorbers, springs, control arms, bushings. Electrical System: Battery, alternator, starter motor, lighting, wiring diagrams, fuses, relays. Body And Frame: Frame construction, body panels, doors, hood, cab components, glass. Procedures Included Repair Procedures: Step-by-step instructions for component disassembly, assembly, and repair. Diagnostic Procedures: Troubleshooting trees, fault code interpretation, and diagnostic testing methods. Maintenance Procedures: Routine maintenance tasks, service intervals, and replacement procedures. Component Replacement: Detailed steps for replacing major components like engine, transmission, brakes, etc. Timing Belt Chain: Information on timing belt or chain inspection, adjustment, and replacement procedures. Wheel Alignment: Specifications and procedures for front and rear wheel alignment. Electrical Troubleshooting: Fault finding for starting system, charging system, lighting, and other electrical circuits. Technical Depth Depth: Extensive detail suitable for professional technicians and experienced DIY mechanics. Diagnostic Charts: Includes symptom-based diagnostic flowcharts for common problems. Specifications Data: Torque specifications, clearances, fluid capacities, electrical values, and more. Diagrams Illustrations: Rich with exploded views, wiring diagrams, and service illustrations to aid understanding. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Compatibility: Windows (95, 98, ME, XP, Vista, 7), Linux, MAC Print Quality Printability: Designed for clear printing of diagrams, illustrations, and text. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Family: Nissan FD (e.g., FD46, FD6 variants likely for this era) Displacement: Likely 4.6L or 5.0L (common for UD 1200/1400) Engine Type: Diesel (Naturally Aspirated or Turbocharged variants probable) Performance Horsepower Range: Approx. 100-150 HP (typical for this class) Torque Range: Approx. 200-250 lb-ft (typical for this class) Fuel System Fuel Injection: Direct Injection (likely mechanical or early common rail depending on specific variant) Fuel Type: Diesel Fuel 🔧 Transmission Standard Transmission Type: Manual Transmission (likely 5 or 6-speed) common for commercial vehicles Optional Transmission Type: Automatic Transmission likely available as an option Features Clutch Type: Single Dry Plate Clutch 📐 Dimensions Exterior Wheelbase: Varies by configuration, typically 100-130 inches Cab Style: Standard Cab Weights Gvwr Range: 12,000 - 14,000 lbs (as per model designations) 🛡️ Safety Features Ratings Crash Test Data: Commercial vehicles of this era typically had less stringent and standardized crash testing compared to passenger cars. Active Features Braking System: Hydraulic disc front, drum rear, potentially with ABS as an option. Passive Features Seat Belts: Standard 3-point seat belts for driver and passenger. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio, possibly with CD player. Speaker configurations typically basic. Driver Assistance ABS: Anti-lock Braking System (ABS) may be optional on some models. Connectivity Power Accessories: Power windows and locks might be optional equipment on higher trims. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles or 6-12 months, consult manual for specifics. Fuel Filter Interval: Recommended replacement at 15,000-30,000 miles, depending on fuel quality. Fluid Specifications Engine Oil Type: API CI-4 or CH-4 rated Diesel Engine Oil, viscosity grade typically 15W-40 (verify in manual). Coolant Type: Green ethylene glycol-based coolant (typically 50/50 mix with distilled water). Transmission Fluid Manual: GL-4 or GL-5 gear oil, viscosity grade typically 75W-90 or 80W-90 (verify in manual). Brake Fluid Type: DOT 3 or DOT 4 Hydraulic Brake Fluid. Known Issues Common Wear Items: Glow plugs, fuel injectors, exhaust manifold gaskets, clutch wear, suspension bushings. Diesel Specific: Potential for injector pump issues, turbocharger wear, and exhaust gas recirculation (EGR) system clogging if not maintained. 📚 Vehicle History Brand Heritage Nissan Ud History: Nissan Diesel (later UD Trucks)...