🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2002 Chassis Code: TJ Codes Engine Code Primary: 42RLE (Automatic), NV3550 (Manual) 👋 Introduction Market Position Vehicle Segment: Compact SUV / Off-Road Vehicle Target Audience: Enthusiasts, DIY mechanics, Jeep owners seeking self-sufficiency Competitive Analysis Primary Competitors 2002: Toyota RAV4, Honda CR-V, Ford Escape, Nissan Xterra Key Features Vehicle Differentiators: Solid front and rear axles, robust off-road capability, iconic Wrangler design Manual Value Proposition: Comprehensive coverage for all major systems, detailed diagrams, and step-by-step instructions for DIY repairs and maintenance. 📋 Manual Details Coverage Areas Languages Supported: English Page Count Total Pages: Approximately 1500-2000 Manual Type Type: Factory Service Manual / Repair Manual Format Format Type: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Yes Engine Performance Control: Yes Fuel System: Yes Exhaust System: Yes Cooling System: Yes Ignition System: Yes Transmission Automatic: Yes (42RLE) Transmission Manual: Yes (NV3550) Transfer Case: Yes (NV241OR 'Rubicon Express') Drive Axles Differential: Yes Suspension Front: Yes (Solid Axle) Suspension Rear: Yes (Solid Axle) Steering System: Yes Brake System: Yes (Front Disc, Rear Disc) Anti Lock Braking System ABS: Yes Electrical System Chassis: Yes Lighting System: Yes Instrument Panel Gauges: Yes Comfort Convenience Controls: Yes (HVAC, Power Accessories) Body Exterior: Yes (Panels, Doors, Hood, Top) Body Interior: Yes (Seats, Trim) Safety Restraint System Srs: Yes (Airbags) Procedures Included Routine Maintenance: Yes (Oil Changes, Filter Replacements, Fluid Checks) Troubleshooting Diagnostics: Yes (Diagnostic Trouble Codes, Symptom Charts) Component Repair Rebuild: Yes (Engine, Transmission, Axles) Electrical Component Diagnosis Repair: Yes Suspension Steering Alignment: Yes Brake System Inspection Repair: Yes Body Panel Replacement Adjustment: Yes HVAC System Service: Yes Wiring Diagrams: Yes Technical Service Bulletins Tsbs: Potentially referenced or included as updates Technical Depth Depth Level: Comprehensive (from basic maintenance to complete overhaul) Diagnostic Procedures: Advanced diagnostic flowcharts and PIDS Special Tool Requirements: Detailed listing and usage instructions 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Resolution: High-resolution scans with clear diagrams Print Quality Print Readability: Optimized for clear printing Binding Type Binding: N/A (Digital) Paper Type Paper Quality: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Name: 4.0L Inline-6 (High Output) Engine Code: ERH Engine Displacement: 242 cubic inches (3960 cc) Bore X Stroke: 3.875 x 3.56 inches (98.4 x 90.5 mm) Compression Ratio: 8.75:1 Performance Horsepower Peak: 181 hp @ 4600 rpm Torque Peak: 222 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) Ignition Type: Distributorless Ignition System (DIS) with Coil-On-Plug (COP) 🔧 Transmission Standard Transmission Type Standard: 5-Speed Manual (NV3550) Optional Transmission Type Optional: 4-Speed Automatic (42RLE) Features Clutch Type: Hydraulic, Dry Single Plate (Manual) Transfer Case Gear Ratios: 2.72:1 (NV241OR) Automatic Transmission Fluid Type: ATF+4 (Mopar Material Number 05013457AA) Manual Transmission Fluid Type: Mopar Manual Transmission Lubricant (or equivalent with specifications) 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Length: 160.1 inches (4067 mm) Width: 66.7 inches (1694 mm) Height: 73.5 inches (1867 mm) (with soft top) Ground Clearance: 10.2 inches (259 mm) Weights Curb Weight Approx: 3550 - 3700 lbs (1610 - 1678 kg) Gross Vehicle Weight Rating Gvwr: 4500 lbs (2041 kg) 🛡️ Safety Features Ratings NHTSA Rollover Rating: 4/5 Stars Active Features ABS: Standard (4-Wheel Anti-lock Brakes) Passive Features Airbags: Driver and Passenger Front Airbags Seat Belts: Three-Point Inertia-Reel Seat Belts 💡 Technology Features Infotainment Audio System Options: Base AM/FM/Cassette, Optional AM/FM/CD Player Speaker Configuration: Typically 4 speakers (dashboard and roll bar mounted) Driver Assistance Traction Control: No (Standard on most trims) Stability Control: No Connectivity Auxiliary Input: No (Aftermarket solutions available) Bluetooth: No (Aftermarket solutions available) 🔧 Maintenance Service Intervals Oil Change Interval Gasoline: Every 3,000 miles or 3 months, whichever comes first (under severe driving conditions); 6,000 miles or 6 months with synthetic oil. Engine Coolant Flush: Every 30,000 miles or 3 years. Automatic Transmission Fluid Change: Every 30,000 miles or 2 years (under normal conditions); inspect more frequently if used for towing or off-roading. Fluid Specifications Engine Oil Type Viscosity: SAE 10W-30 (API Certified) Engine Oil Capacity: 5.0 US Quarts (4.7 Liters) with filter Coolant Type: Mopar Antifreeze/Coolant (50/50 mix with distilled water) Brake Fluid Type: DOT 3 Known Issues Common Issue 1: Oil filter housing leaks (especially on the 4.0L engine). Common Issue 2: Cracked exhaust manifolds (due to thermal cycling). Common Issue 3: Water pump leaks. Common Issue 4: Front track bar bushings wear and potential wobble. Common Issue 5: Radiator failure or leaks. Common Issue 6: Door seal leaks and wind noise. 📚 Vehicle History Brand Heritage Jeep Legacy: Founded on military utility vehicles, the Jeep brand has a long history of off-road prowess and durability. Model Evolution Tj Generation Introduction: The TJ Wrangler debuted for the 1997 model year, replacing the YJ. It marked a significant return to coil springs...