🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Year:

2002

Chassis Code:

TJ

Engine Code Primary:

42RLE (Automatic), NV3550 (Manual)

👋 Introduction

Vehicle Segment:

Compact SUV / Off-Road Vehicle

Target Audience:

Enthusiasts, DIY mechanics, Jeep owners seeking self-sufficiency

Primary Competitors 2002:

Toyota RAV4, Honda CR-V, Ford Escape, Nissan Xterra

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

Languages Supported:

English

Total Pages:

Approximately 1500-2000

Type:

Factory Service Manual / Repair Manual

Format Type:

Digital (PDF)

📖 Manual Coverage

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)

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

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 Type:

PDF

Searchability:

Searchable text content

Resolution:

High-resolution scans with clear diagrams

Print Readability:

Optimized for clear printing

Binding:

N/A (Digital)

Paper Quality:

N/A (Digital)

⚙️ Engine Specifications

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

Horsepower Peak:

181 hp @ 4600 rpm

Torque Peak:

222 lb-ft @ 3200 rpm

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

Transmission Type Standard:

5-Speed Manual (NV3550)

Transmission Type Optional:

4-Speed Automatic (42RLE)

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

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)

Curb Weight Approx:

3550 - 3700 lbs (1610 - 1678 kg)

Gross Vehicle Weight Rating Gvwr:

4500 lbs (2041 kg)

🛡️ Safety Features

NHTSA Rollover Rating:

4/5 Stars

ABS:

Standard (4-Wheel Anti-lock Brakes)

Airbags:

Driver and Passenger Front Airbags

Seat Belts:

Three-Point Inertia-Reel Seat Belts

💡 Technology Features

Audio System Options:

Base AM/FM/Cassette, Optional AM/FM/CD Player

Speaker Configuration:

Typically 4 speakers (dashboard and roll bar mounted)

Traction Control:

No (Standard on most trims)

Stability Control:

No

Auxiliary Input:

No (Aftermarket solutions available)

Bluetooth:

No (Aftermarket solutions available)

🔧 Maintenance

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.

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

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

Jeep Legacy:

Founded on military utility vehicles, the Jeep brand has a long history of off-road prowess and durability.

Tj Generation Introduction:

The TJ Wrangler debuted for the 1997 model year, replacing the YJ. It marked a significant return to coil springs and a focus on on-road refinement while retaining off-road capabilities.

2002 Model Year Updates:

The 2002 model year saw minor refinements, including updated interior features and the continued availability of the robust 4.0L inline-six engine. The Rubicon trim was introduced in 2003, but this manual covers the pre-Rubicon TJ offerings.

Production Plant:

Toledo North Assembly Plant, Toledo, Ohio, USA

🏆 Awards & Recognition

Off Road Awards:

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

Consumer Reports Reliability:

Variable, often cited for mechanical robustness but can have electrical or interior trim issues.