🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Year:

2001

Generation Name:

TJ

Chassis Code:

TJ

👋 Introduction

Vehicle Segment:

Compact/Mid-size SUV, Off-road Vehicle

Target Audience:

Off-road enthusiasts, adventure seekers, DIY mechanics, restoration projects

Key Competitors 2001:

Toyota Tacoma (SUV variant), Suzuki Vitara, Ford Bronco (older models still relevant), Land Rover Defender (niche)

Iconic Design:

Distinctive Jeep grille, round headlights, flat fenders, exposed hinges, removable doors and roof

Off Road Capability:

Solid front and rear axles, high ground clearance, short overhangs, robust four-wheel-drive systems (Command-Trac, Selec-Trac)

Versatility:

Configurable for various driving conditions, from daily commuting to extreme off-roading

📋 Manual Details

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

Downloadable ZIP containing PDF

Estimated Page Count:

Approximately 1500+

📖 Manual Coverage

Engine Systems:

Engine mechanical (4.0L, 2.5L), lubrication, cooling, fuel, ignition, emissions control, starting and charging, engine performance diagnostics

Transmission Drivetrain:

Manual transmissions (AX-5, NV3550), Automatic transmissions (30/42RH), Transfer case (NV241OR), driveline components (axles, driveshafts, differentials)

Suspension Steering:

Front and rear suspension (solid axles, coil springs, track bars, sway bars), steering system (power steering, steering linkage, steering column)

Brakes:

Front and rear brakes (disc, drum), Anti-lock Braking System (ABS) if equipped, parking brake, hydraulic system

Electrical Chassis:

Lighting system, horn, wiper/washer system, power windows/locks, mirrors, instrument cluster, seats, body control module (BCM)

Electrical Powertrain Control Module (PCM):

PCM diagnostics, sensor inputs, actuator outputs, wiring diagrams, diagnostic trouble codes (DTCs)

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system components, operation, diagnosis, and repair

Body:

Exterior body panels, doors, hood, tailgate, bumpers, interior trim, seats, convertible top (soft top and hard top)

Maintenance Procedures:

Oil changes, filter replacements, fluid checks and changes, lubrication points, tire rotation

Repair Procedures:

Component removal and installation (engine, transmission, suspension, brakes, electrical components), system diagnostics and repair

Troubleshooting:

Diagnostic charts, symptom-based troubleshooting, DTC interpretation and resolution

Technical Specifications:

Torque specifications, clearances, fluid capacities, electrical specifications, diagnostic data

Wiring Diagrams:

Detailed electrical schematics for all systems

Depth Of Coverage:

Comprehensive from basic maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics

📊 Manual Specifications

PDF Quality:

High-resolution, searchable PDF

Printability:

Printable pages

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine 1 Type:

4.0L (242 cu in) Inline-6 OHV

Engine 1 Horsepower:

190 hp @ 4,600 rpm

Engine 1 Torque:

235 lb-ft @ 4,000 rpm

Engine 1 Fuel System:

Multi-Point Fuel Injection (MPI)

Engine 1 Block Material:

Iron

Engine 1 Head Material:

Iron

Engine 1 Bore X Stroke:

3.875 in x 3.414 in (98.4 mm x 86.7 mm)

Engine 1 Compression Ratio:

8.8:1

Engine 2 Type:

2.5L (150 cu in) Inline-4 OHV

Engine 2 Horsepower:

120 hp @ 5,200 rpm

Engine 2 Torque:

135 lb-ft @ 3,200 rpm

Engine 2 Fuel System:

Multi-Point Fuel Injection (MPI)

Emissions Compliance:

Federal Tier 1 compliant

Fuel Type Recommended:

Unleaded gasoline (87 octane minimum for 4.0L, 87 octane minimum for 2.5L)

🔧 Transmission

Transmission Standard Type:

5-speed manual transmission (NV3550 for 4.0L, AX-5 for 2.5L)

Transmission Optional Type:

4-speed automatic transmission (40/42LE)

Transfer Case Standard:

New Venture Gear NV241OR "Rock-Trac" (4:1 low range) on Rubicon models, Command-Trac NV231 transfer case (2.72:1 low range) on other models

Transmission Fluid Spec Auto:

ATF+4 (Chrysler Mopar)

Transmission Fluid Spec Manual:

Mopar Manual Transmission Lubricant (MS-9224) or equivalent

Transfer Case Fluid Spec:

Mopar NV241 Transfer Case Lubricant (MS-9024) or equivalent

📐 Dimensions

Wheelbase:

93.4 inches (2372 mm)

Overall Length:

151.4 inches (3845 mm)

Overall Width Body:

66.5 inches (1689 mm)

Overall Height:

71.3 inches (1811 mm) (with soft top)

Ground Clearance:

Approx. 10.5 inches (267 mm) (depending on tire size and suspension)

Approach Angle:

Approx. 43.4 degrees

Departure Angle:

Approx. 37.2 degrees

Breakover Angle:

Approx. 22.4 degrees

Curb Weight Approx:

3,500 - 3,800 lbs (1588 - 1724 kg) (depending on configuration)

Gross Vehicle Weight Rating Gvwr:

Approx. 4,700 lbs (2132 kg)

Towing Capacity:

2,000 lbs (907 kg)

Payload Capacity:

Approx. 1,000 lbs (454 kg)

🛡️ Safety Features

NHTSA Front Crash Test Rating:

4 Stars (Driver and Passenger)

ABS:

Optional Anti-lock Braking System (ABS) on front wheels only for earlier TJ models, 4-wheel ABS optional later

Traction Control:

Not available

Electronic Stability Control:

Not available

Airbags:

Driver and passenger front airbags

Seatbelts:

3-point front seat belts, lap belts for rear occupants (or 3-point depending on configuration)

Rollover Protection:

Factory-installed sport bar (roll bar) integrated into the windshield frame and rear body

💡 Technology Features

Audio System:

Basic AM/FM stereo with cassette or CD player, optional premium audio system with amplifier.

Navigation:

Not available from factory

Connectivity:

Limited; basic power outlets, optional auxiliary input for audio.

Cruise Control:

Optional

Keyless Entry:

Optional

Security System:

Factory alarm system optional

🔧 Maintenance

Oil Change Interval:

Every 3,000-6,000 miles (4,800-9,700 km) or 6 months, depending on driving conditions and oil type (refer to manual for specific recommendation)

Air Filter Replacement:

Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection

Spark Plug Replacement:

4.0L: Approx. 100,000 miles (160,000 km) with platinum or iridium plugs. 2.5L: Approx. 30,000 miles (48,000 km) with standard plugs. (Consult manual for exact type and interval)

Coolant Flush:

Every 30,000 miles (48,000 km) or 2 years

Transmission Fluid Change Auto:

Every 30,000-60,000 miles (48,000-97,000 km) or as recommended

Transmission Fluid Change Manual:

Every 60,000-100,000 miles (97,000-160,000 km)

Engine Oil Capacity:

4.0L: 5 quarts (4.7 liters) with filter. 2.5L: 4 quarts (3.8 liters) with filter.

Engine Oil Viscosity:

10W-30 recommended for most climates (check manual for specific temperature ranges)

Coolant Type:

Chrysler/Mopar HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant (Orange)

Brake Fluid Type:

DOT 3

Common Problems Engine:

Cracking cylinder heads (on older 4.0L designs, less common on TJ but possible), oil filter adapter O-ring leaks, distributorless ignition system (DIS) coil pack issues.

Common Problems Transmission:

Clutch wear in manual transmissions, potential for automatic transmission solenoid issues.

Common Problems Suspension Steering:

Worn ball joints, tie rod ends, steering stabilizer, control arm bushings, track bar issues due to off-road use.

Common Problems Electrical:

Corrosion on wiring connectors, alternator issues, fuel pump failures, interior accessory malfunctions (power windows, locks).

Common Problems Body:

Rust on rocker panels, floor pans, and tailgate hinges; leaks around windshield and doors; worn seat fabric.

📚 Vehicle History

Jeep Legacy:

Jeep's lineage traces back to WWII military vehicles, evolving into a symbol of ruggedness and off-road prowess.

Wrangler Tj Introduction:

The TJ generation was introduced for the 1997 model year, replacing the YJ Wrangler. It marked a significant shift with the adoption of coil springs replacing the YJ's leaf springs, improving ride comfort and articulation.

Tj Updates 2001:

For 2001, the TJ received minor updates. Key changes included the introduction of the high-line "Rubicon" trim with Dana 44 axles front and rear, locking differentials, and a 4:1 low-range transfer case. Interior comfort and NVH improvements were also ongoing.

Tj Production Years:

1997-2006

Manufacturing Location:

Toledo, Ohio, USA

🏆 Awards & Recognition

Off Road Awards:

Consistently recognized by off-road publications and enthusiasts for its superior capability and design.

Consumer Reports Rating:

Varies by model year and specific issues, often cited for good powertrain reliability but average to below-average for other areas like body integrity and fuel economy.