🏷️ Basic Information Identification Make: Isuzu Model: N Series Trucks (NKR, NPR, NHR, NQR, NPS) Codes Product Name: ISUZU NPR NKR NHR N Series Truck Workshop Repair Manual 👋 Introduction Market Position Market Segment: Light-duty commercial trucks, often used for delivery, service, and utility applications. Key Features Repair Manual Value: Comprehensive factory-level repair and service information for a wide range of Isuzu N-Series models and engines. Essential for accurate maintenance, diagnostics, and repairs, saving on labor costs. Target Audience Intended Users: Vehicle owners performing DIY maintenance and repairs, independent repair shops, fleet maintenance departments, and professional mechanics. 📋 Manual Details Coverage Areas Vehicle Models Covered: NKR, NPR, NHR, NQR, NPS series Model Years Covered: Primarily 1994-2000, with specific sections for 1999 and 2000 models. Some sections extend to '1994 and up'. Page Count Estimated Page Count: N/A (Electronic format, file size provided) Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF (requires Adobe Acrobat Reader) File Specifications File Size Mb: 93 MB File Compression: ZIP (requires WinZip or WinRAR for extraction) 📖 Manual Coverage Systems Covered Powertrain: Engine (4H Series: 4HF1, 4HF1-2, 4HE1-T, 4HE1-TC, 4HG1, 4HG1-T; 4J Series: 4JB1, 4JB1T, 4JB1-TC, 4JG2), Manual Transmissions (MBP, MSB, MXA Series), Automatic Transmission (450-43LE), Clutch, Propeller Shaft, Axles (Front and Rear) Chassis: Frame and Cab, Steering (Power and Manual), Suspension (Front and Rear), Wheels and Tires Brakes: Hydraulic Brakes, Parking Brakes, Exhaust Brake, Anti-Lock Brake System (ABS) Electrical And Accessories: Cab & Chassis Electrical (for RHD and LHD vehicles), Heating & Air Conditioning (HVAC), Power Take-off (PTO) with oil pump Procedures Included Repair And Overhaul: Engine overhaul, Transmission overhaul (Automatic & Manual), Clutch overhaul, Compressor overhaul (HVAC), Steering linkage, Suspension components, Axle repair, Brake system service, Electrical system diagnosis and repair Maintenance And Lubrication: Detailed maintenance and lubrication procedures for various model years and series. Diagnostics: Diagnostic procedures for various systems, including Automatic Transmission. Troubleshooting: Implied troubleshooting guidance through detailed repair and diagnostic sections. Technical Depth Depth: Factory-level detail, suitable for both DIY enthusiasts and experienced professional mechanics. Includes step-by-step instructions, diagrams, and pictures. 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Printable page by page. High-quality illustrations and diagrams. Binding Type Binding: N/A (Electronic format) Paper Type Paper Type: N/A (Electronic format) Searchability Text Search: Likely searchable text within the PDF, depending on how the PDF was created. ⚙️ Engine Specifications Primary Engine 4H Engine Codes: 4HF1, 4HF1-2, 4HE1-T, 4HE1-TC, 4HG1, 4HG1-T Primary Engine 4J Engine Codes: 4JB1, 4JB1T, 4JB1-TC, 4JG2 Engine Details Engine Types: Diesel (likely direct injection, some turbocharged variants indicated by 'T' and 'TC' suffixes) Engine Displacement Estimation Displacement Range Liters: Likely in the 2.8L to 5.2L range based on common Isuzu N-Series engines. Fuel System Fuel Type: Diesel Engine Maintenance Key Maintenance Items: Oil and filter changes, fuel filter replacement, air filter replacement, cooling system maintenance, glow plug checks (for diesel cold starting). 🔧 Transmission Manual Transmission Available Series: MBP Series (e.g., NPR70), MSB Series (NHR, NKR, NPR), MXA Series (NPS, NQR, NKR, NPR) Automatic Transmission Available Model: 450-43LE (Applicable to NPR, NQR 1999 and up) Clutch Clutch Types: Single dry plate (standard for these light-duty trucks) Transmission Maintenance Fluid Type Manual: API GL-4 or GL-5 gear oil (specific viscosity to be confirmed in manual, typically 75W-90 or 80W-90) Fluid Type Automatic: Dexron-III or equivalent automatic transmission fluid (ATF) 📐 Dimensions Exterior General Chassis Type: Light-duty commercial truck chassis, typically cab-over-engine design. Vehicle Variants Body Styles: Chassis Cab (ready for custom body installation - e.g., box truck, flatbed, stake bed). Weights Gvwr Range: Typically ranges from approximately 10,000 lbs to 16,000 lbs GVWR, depending on the specific model and configuration (e.g., NPR vs. NKR). 🛡️ Safety Features Active Features Braking Systems: Hydraulic disc front brakes, hydraulic drum rear brakes, parking brake, and optional Exhaust Brake and ABS. Passive Features Cab Construction: Reinforced cab structure for driver protection. Specific safety features like airbags would be model-dependent and may not be covered for older models. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with CD player or cassette player common for this era. Manual might cover radio removal/installation. Driver Assistance ABS: Anti-lock Braking System (ABS) is listed as a covered system, indicating its availability on some models and years within the manual's scope. Accessories Pto Systems: Coverage for Power Take-off (PTO) with oil pump indicates its availability on certain chassis configurations for auxiliary equipment operation. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000 to 7,500 miles (8,000 to 12,000 km) or 6-12 months, depending on operating conditions. Manual will provide specific recommendations. Fuel Filter Interval: Recommended replacement every 15,000 to 30,000 miles (24,000 to 48,000 km), or as per manual's guidance, especially crucial for diesel engines. Fluid Specifications Engine Oil Type: Diesel engine oil, likely API CI-4 or CJ-4 specification, viscosity grade...