🏷️ Basic Information Identification Make: Nissan Model: Truck / Pathfinder Chassis Code: D21 Series Production Years: 1988-1990 👋 Introduction Market Position Target Audience: Do-it-yourselfers (DIY) and experienced mechanics. Value Proposition: Inexpensive way to keep vehicle working properly, save money on repairs. Key Features Detail Level: Detailed illustrations, diagrams, wiring schematics, specifications, and step-by-step instructions. Approach: Based on complete disassembly of the machine. 📋 Manual Details Coverage Areas Primary Coverage: Complete Service and Repair Secondary Coverage: Maintenance, Diagnostics, Rebuilding, Refurbishing, Restoration Page Count Estimated Pages: Extensive (Specific number not provided in product info, but implied to be comprehensive) Manual Type Type: Service Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine Mechanical: Full coverage including disassembly, assembly, and specifications. Engine Lubrication Cooling: Detailed procedures for oil, coolant systems, pumps, thermostats, etc. Engine Fuel Emissions: Coverage of fuel injection, carburetors (if applicable), emission controls, and sensors. Drivetrain Clutch: Complete clutch system service and repair. Drivetrain Manual Transmission: All aspects of manual transmission repair, maintenance, and overhaul. Drivetrain Automatic Transmission: Detailed procedures for automatic transmission service, diagnostics, and rebuilding. Drivetrain Transfer Case: Service and repair for the transfer case (4WD models). Drivetrain Axles Differentials: Coverage of propeller shafts, U-joints, differential carriers, and axles. Suspension Steering: Front and rear suspension, steering system components, alignment specifications. Brakes: Comprehensive brake system diagnostics, repair, and specifications (disc/drum). Body: Body panel repair, trim, doors, windows, and structural information. HVAC: Heater and Air Conditioning system service, refrigerant handling, and component repair. Electrical: Extensive coverage including wiring diagrams, component testing, charging system, starting system, lighting, and accessories. Procedures Included Maintenance: Scheduled maintenance tasks, fluid changes, filter replacements, and inspections. Diagnostics: Troubleshooting guides, fault codes (if applicable), and diagnostic strategies for all systems. Repair: Step-by-step repair procedures for virtually every component and system. Rebuild: Detailed instructions for rebuilding engines, transmissions, differentials, and other major components. Technical Depth Depth: Complete (from basic maintenance to full engine/transmission rebuilds). Illustrations: Detailed illustrations and diagrams are included throughout. Schematics: Wiring schematics are included for the electrical system. 📊 Manual Specifications File Format Compatibility: All versions of Windows & Mac, Linux OS, iPhone, iPad, Android, etc. Reader Requirement: Adobe PDF Reader Compression Requirement: WinZip (or similar decompression utility) Print Quality Printability: Printable (allows user to print pages or the entire manual). Searchability Features: Searchable text for quick information retrieval. Bookmarking Features: Bookmarked for easy navigation. Completeness Integrity: 100% Complete and Intact, no missing or corrupt pages/sections. ⚙️ Engine Specifications Primary Engine Variants Covered: Likely covers common engines for the D21 series in the specified years, including 2.4L (Z24i/KA24E) and potentially others like V6 (VG30E) depending on model configuration. Performance 2.4L I4 Ka24E Estimated Hp: ~106-115 HP (depending on specific variant and year) 2.4L I4 Ka24E Estimated Torque: ~138-148 lb-ft (depending on specific variant and year) 3.0L V6 Vg30E Estimated Hp: ~145-150 HP 3.0L V6 Vg30E Estimated Torque: ~170-175 lb-ft Fuel System Fuel Delivery 2.4L: Throttle Body Injection (TBI) for Z24i, Electronic Fuel Injection (EFI) for KA24E. Fuel Delivery 3.0L: Electronic Fuel Injection (EFI). 🔧 Transmission Standard Manual: Available, likely 5-speed manual transmissions. Optional Automatic: Available, likely 3-speed or 4-speed automatic transmissions. Features 4Wd Availability: Models available with 4-wheel drive, featuring a transfer case. 📐 Dimensions Exterior Body Styles: Regular Cab, King Cab (extended cab). Bed Lengths: Short bed and long bed configurations. Weights Curb Weight Range: Varies significantly by configuration, typically 3000-4000 lbs. 🛡️ Safety Features Ratings Crash Test Data: Limited official crash test data available from that era for this specific model. Manual will cover vehicle structure and safety system components. Active Features ABS: Anti-lock Braking System (ABS) likely optional or standard on higher trims in later years of this range. Passive Features Seat Belts: Standard seat belts; information on adjustment and maintenance is typically included. 💡 Technology Features Infotainment Audio System: Typically AM/FM radio with cassette player; optional CD player on later models. Manual details wiring and component replacement. Driver Assistance Cruise Control: Optional feature on higher trims, covered in the electrical section of the manual. 🔧 Maintenance Service Intervals Oil Change: Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions. Manual will provide specific recommendations. Transmission Fluid: Manual transmission fluid inspection/change intervals vary; automatic transmission fluid service is crucial, often around 30,000-60,000 miles. Specifics in manual. Coolant Change: Initial change at 2 years/30,000 miles, then every 1-2 years or 15,000-30,000 miles thereafter. Manual will have precise intervals. Fluid Specifications Engine Oil Type 2.4L: API SG or higher, SAE 5W-30 or 10W-30. Manual will confirm viscosity based on climate. Engine Oil Type 3.0L: API SG or higher, SAE 5W-30 or 10W-30. Manual will confirm viscosity based on climate. Transmission Fluid Manual: GL-4 gear oil, typically SAE 75W-90 or 80W-90. Manual will specify. Transmission Fluid Automatic: Nissan/Datsunmatic D-II or Dexron II equivalent. Manual...