🏷️ Basic Information Identification Make: Nissan Model: Maxima Year: 1991 Codes Chassis Code: J30 👋 Introduction Market Position Market Placement: Targets DIY enthusiasts and independent repair shops seeking factory-level diagnostic and repair information for the 1991 Nissan Maxima. Competitive Analysis Competitors: Competes with traditional printed service manuals, other digital repair platforms, and manufacturer service portals. Offers convenience and often a more dynamic content delivery. Key Features Convenience: Instant online access, accessible on multiple devices, eliminating the need for physical storage. Accuracy: Licensed OE (Original Equipment) derived information ensures high accuracy and authenticity. Cost Effectiveness: Positions itself as a more affordable and convenient alternative to outdated printed manuals and expensive professional labor. 📋 Manual Details Coverage Manual Type: Service and Repair Manual Software Language: English Format: Online Software (Web Browser Accessible) Access Duration: 1 Year (with discount options for extension) Licensed Content: Yes (derived from OE materials) 📖 Manual Coverage Systems Covered Engine: Complete service, diagnosis, and repair procedures for the V6 engine. Drivetrain: Detailed information on automatic and manual transmissions, transaxle, drive axles, and differential. Brakes: Covers hydraulic system, ABS (if equipped), disc/drum brake components, parking brake, and troubleshooting. Suspension: Front and rear suspension systems, including struts, springs, bushings, ball joints, and alignment procedures. Steering: Power steering system, steering rack, tie rods, and steering column components. Electrical System: Comprehensive wiring diagrams, diagnostic procedures for charging system, starting system, ignition system, lighting, and accessories. Heating And Air Conditioning: HVAC system components, refrigerant handling, climate control diagnostics, and repair. Body And Chassis: Body panel removal and installation, interior trim, glass, doors, locks, and chassis lubrication. Procedures Included Maintenance: Scheduled maintenance tasks including oil changes, filter replacements, fluid checks, belt inspections, and tune-ups. Troubleshooting: Diagnostic flowcharts and step-by-step troubleshooting guides for common and complex issues. Repair: Detailed instructions for component removal, disassembly, repair, reassembly, and installation. Diagnostics: Information on using diagnostic tools, reading trouble codes, and interpreting sensor data. Specifications: Torque specifications, clearances, fluid capacities, and performance data. Technical Depth Depth: Comprehensive coverage from basic preventive maintenance to advanced engine and transmission overhauls. 📊 Manual Specifications File Format Format: Web-based application, accessible via browser on PC, laptop, smartphone, tablet. Searchability: Likely features keyword search capabilities within the platform. Printability: Specific printability not detailed, but online format typically allows for printing of individual sections. Binding Type Binding: N/A (Digital Software) Paper Type Paper: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Code: VG30E Engine Type: 3.0L SOHC V6 Bore X Stroke: 87.0 mm x 83.0 mm Compression Ratio: 8.5:1 Horsepower: 160 hp @ 5200 rpm Torque: 182 lb-ft @ 3600 rpm Fuel System Fuel Delivery: Multi-point fuel injection (MPFI) Fuel Type: Unleaded gasoline Recommended Octane: 87 AKI (Octane Rating) 🔧 Transmission Standard Transmission Type: 4-speed automatic (RE4F02A) Optional Transmission Type: 5-speed manual (FS5R30A) Features Automatic Features: Electronically controlled, overdrive. Manual Features: Front-wheel drive transaxle. 📐 Dimensions Exterior Wheelbase: 106.5 inches (2705 mm) Length: 191.5 inches (4864 mm) Width: 70.1 inches (1781 mm) Height: 55.1 inches (1400 mm) Weights Curb Weight Approx: 3200 - 3400 lbs (1451 - 1542 kg) depending on trim and transmission 🛡️ Safety Features Ratings NHTSA Frontal Impact: Not explicitly rated by NHTSA for this specific model year in readily available public data. Era standards varied. Active Features ABS: Available on certain trim levels (e.g., GLE) Passive Features Seat Belts: Front 3-point manual seat belts, rear lap and shoulder belts. Airbags: Driver-side airbag was an option, not standard across all trims for 1991. 💡 Technology Features Infotainment Audio System: Factory installed AM/FM stereo with cassette player, often with optional CD player on higher trims. Climate Control: Manual or optional automatic climate control (depending on trim). Driver Assistance Cruise Control: Standard on most trims. Connectivity Connectivity Features: No advanced connectivity features like Bluetooth or USB were available in 1991. Connectivity was limited to the audio system. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles (6,000 km) or 3 months, whichever comes first (under normal driving conditions). Air Filter Replacement: Inspect every 15,000 miles (24,000 km), replace as needed. Spark Plug Replacement: Typically around 60,000 miles (96,000 km), refer to manual for specific type and gap. Timing Belt Replacement: The VG30E utilizes a timing belt. Replacement interval is critical, typically around 60,000 - 90,000 miles (96,000 - 144,000 km). Failure can cause severe engine damage. Fluid Specifications Engine Oil Type: API SG or SG/CD classification, SAE 5W-30 or 10W-30 (depending on climate). Engine Oil Capacity: Approximately 4.7 US quarts (4.5 liters) with filter change. Automatic Transmission Fluid Type: Nissan Matic D (or equivalent Dexron-II/Mercon compatible fluid). Manual Transmission Fluid Type: API GL-4, SAE 75W-85 or 75W-90 gear oil. Coolant Type: Ethylene glycol-based coolant with corrosion inhibitors. Typically a 50/50 mix with distilled water. Known Issues Engine Mounts: Wear and tear on engine mounts can lead to increased vibration and noise,...