🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2002 👋 Introduction Market Position Jeep Wrangler Position: Iconic off-road focused SUV, renowned for its go-anywhere capability and rugged design. The 2002 model represents the TJ generation's evolution. Competitive Analysis Competitors: Ford Bronco (prior generation), Toyota 4Runner, Chevrolet Blazer, Land Rover Defender (less direct competitor due to price and focus). Key Features Design: Classic Jeep styling, removable doors and top, solid front axle, high ground clearance, short wheelbase. Capability: Exceptional off-road articulation and traction, robust chassis and drivetrain. 📋 Manual Details Coverage Areas Manual Type: Service and Repair Workshop Manual Language: English Format: Digital (PDF) Page Count Estimated Page Count: 1000+ 📖 Manual Coverage Systems Covered Engine: 2.4L (148 CID) Power Tech DOHC I-4 Engine (less common for this year but may be covered) Transmission: 42RLE 4-Speed Automatic Transmission Drivetrain: Dana 35 Rear Axle (C-clip) Suspension: Rear: Solid Live Axle with Leaf Springs and Control Arms Brakes: Rear: Disc Brakes Steering: Recirculating Ball Steering System Electrical: 12V System, Charging System, Ignition System, Lighting, Gauges, Instrumentation, Power Accessories Body: Body Panels, Doors, Hood, Fenders, Bumpers, Soft Top/Hardtop Systems HVAC: Heating, Ventilation, and Air Conditioning (HVAC) System Interior: Seats, Dashboard, Trim Panels, Interior Lighting Procedures Included Maintenance: Oil Changes, Filter Replacements, Fluid Checks and Replenishment, Spark Plug Replacement, Belt Inspection and Replacement Troubleshooting: Diagnostic Procedures, Symptom-Based Troubleshooting Charts, Electrical Schematics for Diagnosis Repair: Engine Mechanical and Electrical Repair, Transmission Overhaul and Repair, Drivetrain Component Replacement, Suspension and Steering Component Repair, Brake System Repair, HVAC System Repair, Body Panel Repair Diagnostics: OBD-II Diagnostics, Diagnostic Trouble Codes (DTCs) Interpretation and Resolution Wiring: Complete Electrical Wiring Diagrams for All Systems Technical Depth Depth: Comprehensive Engine Rebuild Procedures, Detailed Transmission Overhaul Steps, In-depth Electrical System Diagnosis and Repair, Body and Chassis Component Repair 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable Text Content Printability: Printable Pages Print Quality Resolution: High-Resolution Images and Diagrams Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: 136 (4.0L I6) Engine Type: 4.0L OHV Power Tech I-6 Displacement: 3952 cc (242 cubic inches) Bore X Stroke: 3.875 in x 3.562 in (98.4 mm x 90.5 mm) Compression Ratio: 8.75:1 Horsepower Gross: 190 hp @ 4600 rpm Torque Gross: 235 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) Engine Oil Oil Capacity: 5 US Quarts (4.7 Liters) with filter Recommended Oil Viscosity: 10W-30 Cooling System Coolant Capacity: 10.7 US Quarts (10.1 Liters) 🔧 Transmission Standard Transmission Type: NV3550 5-Speed Manual Optional Transmission Type: 42RLE 4-Speed Automatic Features Manual Transmission Fluid Type: NV3550 Manual Transmission Fluid (Specific Mopar Specification) Automatic Transmission Fluid Type: ATF+4 (Mopar) Transfer Case Fluid Type: NP241 GII Command-Trac: Mopar Dexron III/Mercon ATF or equivalent 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Length: 151.9 inches (3858 mm) Width Body: 66.7 inches (1694 mm) Height To Top Of Body: 70.2 inches (1783 mm) Ground Clearance: Approx. 8.7 inches (221 mm) unloaded Weights Curb Weight Manual: Approx. 3,335 lbs (1513 kg) Curb Weight Automatic: Approx. 3,435 lbs (1558 kg) Gross Vehicle Weight Rating Gvwr: Approx. 4,500 lbs (2041 kg) Towing Capacity: 2,000 lbs (907 kg) with trailer brakes 🛡️ Safety Features Ratings NHTSA Driver Front Impact: Not Specifically Rated (as per common practice for low volume SUVs of that era) NHTSA Passenger Front Impact: Not Specifically Rated Active Features ABS: Standard on all models (4-wheel disc ABS) Passive Features Airbags: Driver and Passenger Frontal Airbags Seatbelts: 3-Point Front Seatbelts, Lap Belts for Rear Occupants (if equipped) 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with CD player (optional), cassette player (standard/optional). Speakers: Standard 2-speaker or optional 4-speaker system. Driver Assistance ABS: Standard 4-wheel ABS. Connectivity Bluetooth: Not available from factory. Aux Input: Not available from factory. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 miles (or 3-6 months) depending on driving conditions (severe service requires more frequent changes). Engine Air Filter Replacement: Inspect every 15,000 miles, replace as needed or every 30,000 miles. Spark Plug Replacement: Approximately 100,000 miles (using original equipment spark plugs). Transmission Fluid Change Manual: Typically no scheduled change interval, but inspect for leaks and condition. Consider replacement at higher mileage or if experiencing issues. Transmission Fluid Change Automatic: Every 30,000 - 60,000 miles, depending on driving conditions. Transfer Case Fluid Change: Every 30,000 - 60,000 miles. Differential Fluid Change: Every 30,000 - 60,000 miles. Fluid Specifications Engine Oil Spec: API Certified SAE 10W-30 Coolant Spec: Mopar Antifreeze/Coolant (Green) or equivalent ethylene glycol based coolant with corrosion inhibitors. Brake Fluid Spec: DOT 3 Known Issues Common Problems Engine: Oil filter housing leaks, distributor cap/rotor wear, thermostat issues, rear main seal leaks. Common Problems Drivetrain: Dana 35 axle C-clip concerns (especially under heavy...