🏷️ Basic Information Identification Make: Nissan Model: Altima Chassis Code: L31 Series Production Years Covered: 2002-2006 Codes Vehicle Generation: Third Generation (L31) 👋 Introduction Market Position Target Audience: Do-it-yourselfers and experienced mechanics Competitive Analysis Value Proposition: Inexpensive way to keep vehicle working properly, enabling DIY repairs and cost savings. Key Features Content Accuracy: 100% complete and intact, no missing/corrupt pages/sections. Delivery Method: Instant Download upon completion of payment. 📋 Manual Details Coverage Areas Scope: Complete Service and Repair Page Count Estimated Pages: Extensive (Hundreds, typical for a complete factory service manual) Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF Digital Delivery: Instant download, no physical shipping or waiting. 📖 Manual Coverage Systems Covered Engine: Mechanical, Lubrication, Cooling, Control Systems Fuel Exhaust: Fuel System, Exhaust System Drivetrain: Clutch, Manual Transaxle, Automatic Transaxle, Front Axle, Rear Axle Suspension Steering: Front Suspension, Rear Suspension, Road Wheels & Tires, Power Steering System Brakes: Brake System, Parking Brake System, Brake Control System Safety Restraints: Seat Belts, Supplemental Restraint System (SRS) Body Interior: Body, Lock & Security System, Glasses, Window System & Mirrors, Roof, Exterior & Interior, Instrument Panel, Seat Climate Control: Automatic Air Conditioner, Manual Air Conditioner Electrical Charging: Starting & Charging System, Lighting System, Driver Information System Wiper Horn: Wiper, Washer & Horn Electronics Comfort: Body Control System, LAN System, Audio Visual & Telephone System, Auto Cruise Control System Electrical Power: Power Supply, Ground & Circuit Elements Procedures Included Repair Maintenance: Repair, Maintenance, Rebuild, Refurbish, Restore Diagnostics: All Diagnostic Procedures Disassembly Assembly: Complete Disassembly and Reassembly Procedures Engine Rebuild: Procedures for complete engine mechanical rebuild, including torque specifications and component clearances. Transmission Overhaul: Detailed instructions for manual and automatic transaxle overhaul and repair. Brake System Service: Includes ABS, brake control systems, caliper service, rotor replacement, and bleeding procedures. Suspension Component Replacement: Step-by-step guides for replacing struts, shocks, bushings, ball joints, and tie rods. Electrical Troubleshooting: Extensive guidance on diagnosing and repairing electrical faults using wiring diagrams and diagnostic procedures. Technical Depth Depth: Comprehensive, including detailed illustrations, diagrams, wiring schematics, and specifications Wiring Schematics: Includes detailed wiring diagrams for all electrical systems. Illustrations Diagrams: Hundreds of photos and illustrations to clarify repair steps. 📊 Manual Specifications File Format Compatibility: All Versions of Windows & Mac, Linux OS, iPhone, iPad, Android Requirements: Adobe PDF Reader & WinZip Print Quality Searchability: Searchable Bookmarking: Bookmarked Printability: Printable Binding Type Type: Digital Download (PDF) Paper Type Digital Storage: Can be saved to hard drive or burned to CD-ROM ⚙️ Engine Specifications Primary Engine Engine Options: Likely 2.5L QR25DE inline-4 and 3.5L VQ35DE V6 (common for this generation) Performance Horsepower Torque: Varies by engine; e.g., 2.5L approx. 170-175 hp, 3.5L approx. 240-255 hp (specific data within manual) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Engine Mechanical Timing Drive: QR25DE typically uses a timing chain; VQ35DE uses timing chains. 🔧 Transmission Standard Transmission Options: Likely available with both 5-speed Manual Transaxle and Xtronic Continuously Variable Transmission (CVT) or 4-speed Automatic Transaxle depending on year/trim. Optional Cvt Details: Xtronic CVT (Continuously Variable Transmission) was a significant feature for this generation. Features Fluid Type: Specific ATF/CVTF types required; refer to manual for Nissan Genuine Matic Fluid or equivalent. 📐 Dimensions Exterior Wheelbase: Approximately 106.3 inches (2700 mm) for L31 generation Length: Approximately 187.0 inches (4750 mm) for L31 generation Weights Curb Weight: Varies by engine and trim, typically 3100-3400 lbs (1400-1550 kg) 🛡️ Safety Features Ratings NHTSA Front Crash: Good (2002-2006 models achieved good ratings in front impacts) Active Features ABS: Anti-lock Braking System (ABS) standard on most trims. Passive Features Airbags: Front airbags, side-impact airbags, and curtain airbags available depending on trim and year. Srs Components: Covers SRS control unit, impact sensors, airbag modules, seat belt pretensioners. 💡 Technology Features Infotainment Audio System: Bose premium audio system available on higher trims; standard AM/FM/CD units. Driver Assistance Cruise Control: Standard cruise control, with auto cruise control mentioned as a system covered. Connectivity Lan System: Covered by the manual, indicating internal vehicle network communication. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 3,750 miles (6,000 km) or 6 months for severe conditions, 7,500 miles (12,000 km) or 12 months for normal conditions (check manual for specifics). Engine Coolant Flush: Recommended every 30,000 miles (48,000 km) or 24 months. Fluid Specifications Engine Oil Type: 0W-20 or 5W-30 API certified synthetic engine oil (refer to manual for exact viscosity based on temperature). Coolant Type: Nissan Genuine Super Long Life Coolant (Blue) or equivalent phosphate-based OAT coolant. Power Steering Fluid: Nissan Genuine PSF or equivalent Dexron III ATF (confirm specific type in manual). Brake Fluid Type: DOT 3 or DOT 4 brake fluid (refer to manual for specific type). Known Issues Cvt Issues: Some early CVT models experienced issues, including hesitation and failure; proper fluid maintenance is crucial. Engine Mounts: Engine...