🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Year:

2002

👋 Introduction

Positioning:

The 2002 Jeep Wrangler (TJ generation) solidified its iconic status as a highly capable off-road vehicle with a distinctively rugged and open-air design.

Competitors:

Primarily competed with other compact SUVs and off-road focused vehicles, though its pure capability often set it apart.

Design:

Short wheelbase, solid axles, removable doors and top (soft or hard), iconic seven-slot grille.

Off Road Capability:

High ground clearance, approach/departure angles, 4WD system (Command-Trac or optional Selec-Trac), available locking differentials (Rubicon trim).

Utility:

Empowers owners and technicians to perform maintenance, diagnostics, and repairs, saving time and money.

📋 Manual Details

Coverage Scope:

Comprehensive service and repair for the 2002 Jeep Wrangler.

Estimated Page Count:

1500-2000 (typical for this era's complete factory service manuals)

Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

Downloadable Digital Format (PDF)

📖 Manual Coverage

Engine:

4.0L Power Tech I-6, 2.5L 4-Cylinder (if applicable to specific market/trim)

Transmission:

NV3550 5-Speed Manual, 42RLE 4-Speed Automatic

Drivetrain:

NP231/NV241 (Transfer Case), Dana 30 (Front Axle), Dana 35/Dana 44 (Rear Axle)

Brakes:

Front Disc, Rear Drum/Disc (depending on configuration), ABS (if equipped)

Steering:

Power Steering System

Suspension:

Front Solid Axle with Coil Springs, Rear Solid Axle with Leaf Springs

Electrical:

Battery, Charging System, Starting System, Ignition System, Lighting, Gauges, Wiper/Washer, Horn, Power Windows/Locks (if equipped)

Fuel System:

Fuel tank, pump, lines, injectors, evaporative emissions

Exhaust System:

Catalytic converter, mufflers, pipes

Cooling System:

Radiator, fan, thermostat, coolant

HVAC:

Heating, Ventilation, Air Conditioning System

Body:

Body panels, doors, fenders, hood, tailgate, interior trim, soft top/hardtop removal/installation

Chassis:

Frame, body mounts, driveline components

Maintenance:

Oil change, filter replacement, fluid checks/changes, lubrication, tire rotation, brake inspection

Diagnostics:

Troubleshooting guides, symptom-based diagnosis, diagnostic trouble codes (DTCs), wiring diagrams

Repair:

Component removal, disassembly, inspection, repair, reassembly, and installation procedures

Specifications:

Torque specifications, clearances, tolerances, fluid capacities, electrical values

Depth:

Comprehensive: Covers routine maintenance, complex diagnostics, component overhaul, and complete vehicle reassembly.

📊 Manual Specifications

File Type:

PDF

Searchability:

Text-searchable (if original scan quality is good)

Print Quality:

High-resolution digital reproduction of original factory documentation.

Binding:

N/A (Digital Download)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Code 1:

ERH (4.0L Power Tech I-6)

Engine Name 1:

4.0L Power Tech Inline-6

Displacement 1:

3952 cc (241 cubic inches)

Bore 1:

98.4 mm (3.875 inches)

Stroke 1:

86.7 mm (3.414 inches)

Compression Ratio 1:

8.8:1

Horsepower 1:

190 hp @ 4600 rpm

Torque 1:

235 lb-ft @ 3200 rpm

Fuel Type:

Unleaded Gasoline

Injection Type:

Multi-Point Fuel Injection (MPI)

Ignition System:

Distributorless Ignition System (DIS) with Coil-On-Plug (COP)

Engine Code 2:

315 (2.5L 4-Cylinder - less common in 2002 US market, check specific vehicle)

Engine Name 2:

2.5L High Output (HO) 4-Cylinder

Displacement 2:

2464 cc (150 cubic inches)

Horsepower 2:

119 hp @ 4600 rpm

Torque 2:

145 lb-ft @ 3400 rpm

🔧 Transmission

Transmission Type Std:

NV3550 5-Speed Manual Transmission

Transmission Type Opt:

42RLE 4-Speed Automatic Transmission

Clutch Type:

Hydraulically Actuated Single Dry Plate

Transfer Case:

NP231 (Command-Trac) - 2WD High, 4WD High, N, 4WD Low; Selec-Trac (optional) with full-time 4WD

📐 Dimensions

Wheelbase:

93.4 inches (2372 mm)

Length:

151.4 inches (3845 mm)

Width:

66.5 inches (1689 mm)

Height:

70.0 inches (1778 mm) (with soft top)

Ground Clearance:

10.1 inches (257 mm)

Curb Weight Approx:

3400 - 3700 lbs (1542 - 1678 kg), varies by configuration

Towing Capacity:

Up to 2000 lbs (907 kg)

Wheelbase Std:

15-inch steel or alloy wheels

Tire Size Std:

215/75R15

Wheel Bolt Pattern:

5 x 4.5 inches (5x114.3 mm)

🛡️ Safety Features

NHTSA Front Impact:

4 Stars (Driver), 4 Stars (Passenger) - 2002 Model Year Data

NHTSA Side Impact:

Not rated or 3 Stars (Passenger) - depending on specific test and configuration

ABS:

Optional Anti-lock Braking System (ABS)

Airbags:

Driver and Passenger Frontal Airbags

Rollover Protection:

Integral sport bar (roll cage structure) as standard

💡 Technology Features

Audio System:

Factory AM/FM stereo with CD player (optional) or cassette player. Speaker configurations vary.

Display:

Basic analog gauges and indicators for speed, RPM, fuel, temperature, oil pressure.

ABS:

Optional ABS on rear wheels only (front wheels not ABS equipped as standard).

Connectivity Features:

Limited by design, prioritizing ruggedness over integrated tech. Aftermarket solutions for Bluetooth/navigation were common.

🔧 Maintenance

Oil Change Interval:

Every 3,000 miles (4,800 km) or 3 months, whichever comes first (severe service recommended).

Transmission Fluid Change Manual:

Inspect every 30,000 miles (48,000 km), change as needed or every 60,000 miles (96,000 km).

Transmission Fluid Change Automatic:

Inspect every 30,000 miles (48,000 km), change every 50,000 miles (80,000 km) (severe service recommended).

Transfer Case Fluid Change:

Inspect every 30,000 miles (48,000 km), change every 60,000 miles (96,000 km).

Differential Fluid Change:

Inspect every 30,000 miles (48,000 km), change every 60,000 miles (96,000 km).

Spark Plug Replacement:

Approx. 100,000 miles (160,000 km) for platinum-tipped plugs, but inspect regularly.

Engine Oil Type:

SAE 5W-30 (API Certified)

Engine Oil Capacity:

5 US quarts (4.7 liters) with filter for 4.0L I6

Transmission Fluid Manual:

Mopar Manual Transmission Lubricant (or equivalent meeting MS-9224 specification)

Transmission Fluid Automatic:

Mopar ATF+4 (MS-9602) Automatic Transmission Fluid

Transfer Case Fluid:

Mopar NV231/NV241 Transfer Case Lubricant (or equivalent meeting MS-9224 specification)

Coolant:

Ethylene Glycol based, 50/50 mix with distilled water (Mopar OAT or HOAT coolant recommended)

Common Problems List:

Radiator leaks (plastic tanks), exhaust manifold cracks (4.0L I6), water pump failures, axle seal leaks, clutch wear, rear main seal leaks (4.0L I6), minor electrical gremlins (wiper motors, door locks).

📚 Vehicle History

Jeep Legacy:

Jeep's history is deeply rooted in military vehicles, evolving into a symbol of off-road capability and freedom.

Tj Generation:

The TJ generation (1997-2006) marked a significant return to Jeep's roots with the adoption of coil springs and solid axles, replacing the YJ's leaf springs.

2002 Updates:

For 2002, minor updates may have included interior trim enhancements and potentially new color options. The core mechanicals remained largely consistent with the early TJ models.

Assembly Location:

Toledo Complex, Toledo, Ohio, USA

🏆 Awards & Recognition

Off Road Acclaim:

Consistently recognized for its exceptional off-road prowess and capability.

4X4 Magazine Awards:

Often featured in 'best off-road vehicle' lists by automotive publications focused on 4x4 performance.