🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2002 Chassis Code: TJ Codes Platform: Jeep Wrangler (TJ) 👋 Introduction Market Position Market Segment: Compact Sport Utility Vehicle (SUV), renowned for its off-road capability and iconic design. Competitive Analysis Key Competitors 2002: Toyota Tacoma (4x4), Nissan Xterra, Suzuki Vitara, Ford Bronco (earlier models). Key Features Design Philosophy: Rugged, body-on-frame construction, solid front and rear axles (most models), removable doors and roof, open-air driving experience. Offroad Capability: Excellent ground clearance, approach/departure angles, available locking differentials (Rubicon trim), low-range gearing. 📋 Manual Details Coverage Areas Primary Coverage: Complete mechanical and electrical service, repair, and maintenance for the 2002 Jeep Wrangler TJ. Secondary Coverage: Troubleshooting, diagnostics, wiring diagrams, body repair, and specifications. Page Count Page Count: Estimated 1500+ pages (typical for comprehensive workshop manuals of this era). Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, internal components, cylinder head, block, pistons, crankshaft, camshaft, timing system, lubrication system, cooling system. Engine Performance: Fuel injection system, ignition system, emission control systems, turbocharger (if applicable), engine diagnostics and tuning. Transmission Manual: NV3550 manual transmission: disassembly, assembly, clutch system, gear shift mechanism, internal components. Transmission Automatic: 42RLE automatic transmission: disassembly, assembly, torque converter, valve body, hydraulic system, electronic controls. Drivetrain: NP231/NV241OR (Command-Trac/Rubicon) transfer cases, Dana 30 front axle, Dana 35/Dana 44 rear axle, driveshafts, U-joints, axle seals, differentials. Suspension: Front and rear suspension systems: coil springs, shock absorbers, control arms, track bars, sway bars, bushings. Steering: Power steering system: pump, steering gear, steering column, tie rods, drag link, steering stabilizer. Brakes: Front and rear brake systems: disc brakes, brake calipers, rotors, brake pads, master cylinder, brake lines, parking brake system, ABS (if equipped). Electrical System: Battery, charging system (alternator), starting system (starter motor), ignition system, lighting system (headlights, taillights, interior lights), fuse box, relays. Instrumentation: Instrument cluster: speedometer, tachometer, fuel gauge, temperature gauge, warning lights, onboard diagnostics (OBD-II). HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system: A/C compressor, condenser, evaporator, heater core, blower motor, controls. Body And Frame: Body panels, doors, hood, tailgate, bumpers, interior trim, seats, soft top/hard top removal and installation, frame inspection and repair. Chassis Electrical: Power windows, power locks, wipers, horn, trailer wiring, cruise control. Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and changes, tire rotation, brake inspections, tune-ups. Troubleshooting: Diagnostic procedures for common problems, symptom-based troubleshooting charts, electrical system diagnostics. Repair: Step-by-step instructions for component removal, repair, and reinstallation for all major systems. Diagnostics: OBD-II scanner usage, diagnostic trouble codes (DTCs), component testing procedures. Wiring Diagrams: Complete and detailed electrical wiring diagrams for all vehicle systems. Technical Depth Depth: Comprehensive, covering everything from basic fluid changes to complete engine and transmission rebuilds. Includes detailed torque specifications, alignment data, and diagnostic procedures. 📊 Manual Specifications File Format File Format: PDF Searchability: Text-searchable PDF for quick access to information. Print Quality Print Quality: High-resolution, suitable for printing all pages. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: 4.0L Inline 6-Cylinder (MVP) Engine Displacement: 3952 cc (242 cubic inches) Engine Configuration: OHV (Overhead Valve), Cast Iron Block, Aluminum Cylinder Head Performance Horsepower: 190 hp @ 4600 rpm Torque: 235 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 octane recommended) Engine Management ECM: Jeep Powertrain Control Module (PCM) 🔧 Transmission Standard Transmission Type: NV3550 5-Speed Manual Transmission Optional Transmission Type: 42RLE 4-Speed Automatic Transmission Features Clutch Type: Hydraulic, Single Dry Plate Transfer Case Standard: NV231 Command-Trac (2WD/4WD Part-Time) Transfer Case Optional: NV241OR-HD (Dana 44) Rock-Trac (Rubicon trim) (2WD/4WD Part-Time with 4:1 low range) 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Length: 151.4 inches (3845 mm) Width: 66.5 inches (1689 mm) Height: 71.5 inches (1816 mm) (soft top) Ground Clearance: Approx. 8.5 inches (216 mm) Weights Curb Weight: Approx. 3450-3700 lbs (1565-1678 kg) depending on configuration. Towing Capacity: 2000 lbs (907 kg) Payload Capacity: Approx. 800-1000 lbs (363-454 kg) 🛡️ Safety Features Ratings NHTSA Front Crash Test: 4-star driver, 4-star passenger (for 2002 model year). Active Features ABS: Available Anti-lock Braking System (ABS) on rear wheels. Passive Features Airbags: Driver and front passenger airbags. Seatbelts: 3-point front seat belts, lap belts in rear. 💡 Technology Features Infotainment Stereo System: Factory AM/FM stereo with CD player, optional Infinity sound system. Speakers: Standard 4-speaker or optional 7-speaker system. Driver Assistance Cruise Control: Standard on most models. Connectivity OBD Ii: Equipped with OBD-II diagnostic port for emissions and engine monitoring. 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,750 miles (6,000 km) or 6 months, whichever comes first. Engine Oil Filter: Replace with oil change. Air Filter: Inspect every 7,500 miles (12,000 km), replace as needed (typically every...