🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Year:

2002

Chassis Code:

TJ

Platform:

Jeep TJ

👋 Introduction

Segment:

Compact SUV / Off-Road Vehicle

Key Selling Points:

Off-road capability, Iconic design, Open-air experience, Durability

Primary Competitors:

Toyota Tacoma (4x4), Nissan Xterra, Suzuki Samurai (earlier models), Land Rover Defender (comparable capability)

Vehicle Type:

Body-on-frame SUV

Drivetrain Options:

2WD (4x2) and 4WD (4x4)

Body Styles:

2-door convertible soft top, 2-door convertible hardtop

📋 Manual Details

Primary Coverage:

2002 Jeep Wrangler (TJ)

Trim Level Coverage:

All trim levels including SE, Sport, Sahara, Rubicon

Estimated Page Count:

1500+

Type:

Service Manual / Repair Manual

Language:

English

Format:

Digital (PDF/eBook)

📖 Manual Coverage

Powertrain:

Engine mechanical, fuel system, ignition system, cooling system, exhaust system, lubrication system, powertrain control module (PCM)

Transmission Drivetrain:

Manual transmission (NV3550), Automatic transmission (42RLE), Transfer case (NV241 GII), Axles (Dana 30 front, Dana 35 rear/Dana 44 rear on Rubicon), Driveshafts, CV joints

Suspension Steering:

Front solid axle (coil spring), Rear solid axle (coil spring), Shock absorbers, Steering gear, Power steering system

Brakes:

Front disc brakes, Rear drum brakes (standard), Rear disc brakes (optional/Rubicon), Anti-lock Braking System (ABS) (if equipped), Brake hydraulic system

Electrical Lighting:

Battery, charging system (alternator), starting system (starter motor), lighting system (headlights, taillights, interior), fuses, relays, wiring diagrams, power distribution

Body Chassis:

Frame, body panels, doors, hood, windshield, convertible top, interior trim, seats, bumpers, towing information

HVAC:

Heating, ventilation, and air conditioning (HVAC) system, refrigerant service

Maintenance:

Scheduled maintenance (oil changes, filter replacements, fluid checks), Lubrication, Tire rotation, Brake inspection, Battery maintenance

Engine Repair:

Engine removal/installation, Cylinder head service, Piston and connecting rod service, Crankshaft and bearing service, Timing chain/belt service (if applicable), Component replacement (alternator, starter, water pump)

Transmission Drivetrain Repair:

Transmission overhaul, Clutch replacement (manual), Torque converter replacement (automatic), Transfer case repair, Axle differential service, Driveshaft and U-joint replacement

Suspension Steering Repair:

Shock absorber replacement, Coil spring replacement, Ball joint service, Tie rod end replacement, Steering gearbox rebuild, Power steering pump replacement

Brake Repair:

Brake pad and shoe replacement, Rotor and drum replacement, Caliper and wheel cylinder service, Brake line replacement, Bleeding the brake system, ABS component testing and replacement

Electrical Diagnostics:

Troubleshooting electrical faults, Wiring harness repair, Component testing (sensors, actuators, modules), Battery and charging system diagnostics, Lighting system repair

Body Repair:

Panel replacement, Door and latch repair, Convertible top service, Interior trim repair, Glass replacement

HVAC Repair:

HVAC system component replacement (blower motor, evaporator, condenser), Refrigerant recharge, Leak detection

Diagnostic Procedures:

Troubleshooting flowcharts, Diagnostic trouble codes (DTCs), On-Board Diagnostics (OBD-II) system information, Component testing procedures

Special Tools:

Identification and usage of specialized tools required for specific repair procedures

Specifications:

Torque specifications, Clearances, Fluid capacities, Electrical specifications, Diagnostic specifications

Rebuild Procedures:

Detailed step-by-step instructions for complete overhauls of major components like engines, transmissions, and axles

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text for quick information retrieval

Resolution:

High-resolution scans for clear diagrams and text

Binding:

N/A (Digital Format)

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Code:

3.7L (4.0L in later TJs, but 2002 typically has 4.0L)

Engine Name:

4.0L Inline-6 OHV (PowerTech)

Displacement:

3952 cc (241 cu in)

Horsepower:

190 hp @ 4600 rpm

Torque:

235 lb-ft @ 3200 rpm

Fuel Delivery:

Multi-point fuel injection (MPI)

Fuel Type:

Unleaded gasoline

Block Material:

Cast iron

Cylinder Head Material:

Aluminum

Bore X Stroke:

3.875 in x 3.578 in (98.4 mm x 90.9 mm)

Compression Ratio:

8.8:1

Ignition System:

Distributorless ignition system (DIS) with coil-on-plug (COP)

🔧 Transmission

Type:

5-speed manual transmission (NV3550)

Type:

4-speed automatic transmission (42RLE)

Transfer Case:

New Process (NP) 241 GII Command-Trac (2-speed part-time four-wheel-drive system with 2.72:1 low-range ratio)

Transmission Fluid Manual:

NV3550: SAE 75W-90 synthetic gear oil (Chrysler spec MS-9224)

Transmission Fluid Automatic:

42RLE: ATF+4 (MS-9602)

Transfer Case Fluid:

NP241 GII: NP241, NP241HD, NP241DLD: Mopar NV241 or equivalent (Dexron III/Mercon compatible)

📐 Dimensions

Wheelbase:

93.4 inches (2372 mm)

Length:

151.4 inches (3845 mm)

Width:

66.5 inches (1689 mm)

Height:

71.6 inches (1819 mm) (with soft top, approximate)

Ground Clearance:

Approx. 8.8 inches (224 mm) (unladen)

Curb Weight:

Approx. 3500-3900 lbs (1588-1769 kg) depending on configuration

Gross Vehicle Weight Rating Gvwr:

Approx. 4850 lbs (2200 kg)

Towing Capacity:

2000 lbs (907 kg)

Approach Angle:

43.4 degrees

Departure Angle:

33.8 degrees

Breakover Angle:

22.4 degrees

🛡️ Safety Features

NHTSA Front Impact:

4 out of 5 stars (driver and passenger)

NHTSA Side Impact:

N/A (not rated for side impact due to body style)

IIHS Rollover Resistance:

Good (calculated)

ABS:

Optional (standard on Rubicon, typically optional on others)

Traction Control:

Not typically equipped

Airbags:

Driver and passenger front airbags

Seat Belts:

3-point front seat belts, 2-point rear seat belts

Rollover Protection:

Factory-installed sport bar and windshield frame

💡 Technology Features

Audio System:

Base AM/FM stereo with CD player, optional Infinity speaker system

Connectivity:

Limited; primarily analog systems. No USB or Bluetooth connectivity standard.

Cruise Control:

Optional

Power Windows Locks:

Optional (often found on higher trims like Sahara or Rubicon)

🔧 Maintenance

Oil Change Interval:

Every 3,000-5,000 miles or 6 months (depending on driving conditions and oil type)

Air Filter Replacement:

Every 15,000-30,000 miles or as needed based on inspection

Spark Plug Replacement:

Approximately 100,000 miles (Long-life platinum spark plugs)

Coolant Flush Interval:

Every 30,000-50,000 miles or 2-3 years

Engine Oil Type:

SAE 10W-30 (API service category SG, SH, SJ or higher)

Engine Oil Capacity:

5.0 US quarts (4.7 liters) with filter change

Coolant Type:

Mopar OAT (Organic Additive Technology) 5-Year/100,000 Mile Coolant or equivalent (typically orange)

Brake Fluid Type:

DOT 3

Common Issues:

Cracked exhaust manifolds (common on 4.0L), Leaking rear main seal, Clutch wear (manual transmission), Ignition coil issues, Rust (especially on frame and body panels in salt-belt regions), Radiator leaks, Blend door actuator failure (HVAC)

Recall Information:

Check NHTSA for any active recalls for the 2002 Jeep Wrangler.

📚 Vehicle History

Jeep Legacy:

Direct descendant of the Willys MB WWII Jeep, established reputation for off-road capability and ruggedness

Tj Generation Start:

1997 (TJ generation introduced)

Tj Generation End:

2006

Key Updates For 2002:

Introduction of the Rubicon trim with Dana 44 rear axle, front and rear locking differentials, and 4:1 low-range transfer case. Minor interior refinements.

Manufacturing Location:

Toledo, Ohio, USA

🏆 Awards & Recognition

Off Road Awards:

Consistently recognized for off-road prowess by automotive publications and enthusiasts.

Resale Value:

Generally good, especially for well-maintained 4x4 models.