🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Generation:

TJ

Model Years Covered:

2004-2005

Chassis Code:

TJ

👋 Introduction

Vehicle Segment:

Compact/Mid-size SUV, Off-Road Vehicle.

Target Audience:

Off-road enthusiasts, outdoor adventurers, owners seeking robust and durable vehicles, DIY mechanics.

Key Competitors:

Toyota Tacoma, Ford Bronco (earlier generations), Suzuki Samurai.

Iconic Design:

Renowned for its classic Jeep grille, round headlights, and open-air capability (removable doors and top).

Off Road Capability:

Solid front and rear axles, Command-Trac NV241 or Rock-Trac NV241OR transfer cases, excellent approach/departure angles.

Durability:

Rugged body-on-frame construction, designed for demanding off-road conditions.

📋 Manual Details

Manual Type:

Workshop Service Repair Manual

Language:

English

Format:

Digital (likely PDF)

Estimated Page Count:

Extensive (typical for workshop manuals, often 1000+ pages)

📖 Manual Coverage

Engine:

Detailed diagnostics, repair, overhaul for all applicable gasoline engines (e.g., 4.0L inline-6, 2.4L 4-cylinder).

Transmission:

Service and repair procedures for manual and automatic transmissions, including clutch, torque converter, and related systems.

Drivetrain:

Covers transfer case operation, 4WD system engagement, front and rear axle assemblies, driveshafts, and U-joints.

Suspension:

Detailed information on coil spring suspension, shock absorbers, control arms, sway bars, and steering linkage components.

Brakes:

Comprehensive coverage of hydraulic brake system, ABS (if equipped), brake pads, rotors, calipers, master cylinder, and bleeding procedures.

Steering:

Power steering system components, steering column, steering box/rack, and alignment specifications.

Electrical:

Extensive wiring diagrams, component locations, diagnostic procedures for starting, charging, ignition, lighting, and accessories.

HVAC:

Air conditioning, heating, and ventilation system diagnosis, component replacement (compressor, condenser, evaporator), and refrigerant handling.

Body:

Exterior body panel removal and installation, door mechanisms, convertible top mechanisms, interior trim, and seat removal.

Chassis:

Frame inspection, repair, and related components.

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, tire rotations, spark plug replacement, belt inspections.

Troubleshooting:

Diagnostic flowcharts, symptom-based troubleshooting guides, and pinpoint tests for electrical and mechanical issues.

Major Repairs:

Engine rebuilds, transmission overhauls, differential repairs, suspension component replacements, brake system overhauls.

Component Replacement:

Step-by-step instructions for replacing nearly every component, from alternators and starters to fuel pumps and sensors.

Diagnostic Tests:

Procedures for using diagnostic tools, reading trouble codes (OBD-II), and performing specific system tests.

Depth Level:

Comprehensive: Covers everything from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

Digital Format:

PDF (Portable Document Format) - typically searchable and printable.

Image Clarity:

High-resolution scans of original factory manuals, ensuring clear diagrams, illustrations, and text.

Binding:

N/A (Digital Format)

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Option 1:

4.0L (3952cc) Power Tech I6 (16-valve OHV)

Engine Option 2:

2.4L (2429cc) DOHC I4 (16-valve)

Horsepower 4.0L:

190 hp @ 4,600 rpm

Torque 4.0L:

235 lb-ft @ 3,200 rpm

Horsepower 2.4L:

154 hp @ 5,200 rpm

Torque 2.4L:

165 lb-ft @ 3,800 rpm

Fuel Delivery Type:

Electronic Multi-Point Fuel Injection (MPI)

Fuel Grade Recommendation:

87 Octane Unleaded Gasoline (minimum for 4.0L and 2.4L).

Engine Oil Type:

SAE 5W-30 (API Service SG, SH, SJ, or later)

Oil Capacity 4.0L:

6.0 US quarts (5.7 liters) with filter

Oil Capacity 2.4L:

4.5 US quarts (4.3 liters) with filter

🔧 Transmission

Transmission 1:

NV3550 5-speed manual (for 4.0L engine)

Transmission 2:

42RLE 4-speed automatic (for 4.0L engine)

Transmission 3:

AX-15 5-speed manual (used in earlier TJ models, potentially some early 2004 variants depending on build date - check VIN)

Transmission 4:

42LE 4-speed automatic (used in earlier TJ models, potentially some early 2004 variants depending on build date - check VIN)

Transmission 5:

NV1500 5-speed manual (for 2.4L engine)

Fluid Spec 42Rle:

ATF+4 (Mopar Material Standard MS-9602 or equivalent)

Fluid Spec Nv3550:

MS-9224 (Mopar Manual Transmission Lubricant) or equivalent GL-3/GL-4 75W-90 gear oil.

📐 Dimensions

Wheelbase:

93.4 inches (2372 mm)

Length:

161.7 inches (4107 mm)

Width:

66.7 inches (1694 mm)

Height:

73.0 inches (1854 mm) (with hardtop)

Curb Weight:

Approximately 3,100 - 3,500 lbs (1406 - 1588 kg), varies by configuration.

Gross Vehicle Weight Rating:

Approximately 4,500 lbs (2041 kg)

Towing Capacity:

2,000 lbs (907 kg) (properly equipped)

Ground Clearance:

Approximately 8.5 inches (216 mm) for standard models, higher for Rubicon.

🛡️ Safety Features

NHTSA Rollover Rating:

3 Stars (for 2WD and 4WD models in 2004-2005)

Braking System:

Front disc, rear drum brakes (standard). Optional ABS (Anti-lock Braking System) available on some trims/options.

Traction Control:

Optional on some models, particularly with automatic transmission.

Airbags:

Driver and passenger front airbags.

Seat Belts:

Three-point front seat belts with pretensioners, lap belts for rear passengers.

Sport Cage:

Integrated sport cage and roll bar structure.

💡 Technology Features

Audio System:

Factory AM/FM/CD player, optional Infinity speaker system available on some trims.

Navigation:

Not typically factory-equipped in these model years; aftermarket options common.

Cruise Control:

Available on most models.

Power Windows Locks:

Optional on most trims, standard on higher trims like Rubicon.

Keyless Entry:

Optional on some models.

🔧 Maintenance

Oil Change Interval:

Every 3,000 miles or 3 months (severe service) / 6,000 miles or 6 months (normal service), consult manual for specific driving conditions.

Air Filter Replacement:

Every 15,000 miles or 12 months, or sooner in dusty conditions.

Spark Plug Replacement:

Approximately 30,000 - 60,000 miles for standard plugs, potentially longer for platinum/iridium plugs (check specific plug type).

Coolant Flush:

Every 30,000 miles or 24 months for conventional coolant, longer for OAT/HOAT coolants.

Transmission Fluid Change:

Automatic: Every 30,000-50,000 miles. Manual: As needed or at higher mileage intervals (e.g., 60,000-100,000 miles), consult manual.

Coolant Type:

Mopar Antifreeze/Coolant (MS-7170) or equivalent HOAT (Hybrid Organic Acid Technology) coolant.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid (check reservoir cap).

Common Problems 4.0L:

Cracking cylinder head (especially earlier versions, though less common in later TJ years), distributor less ignition system components, oil filter housing leaks.

Common Problems 2.4L:

Timing chain wear, potential for oil consumption.

Common Problems General:

Oil filter adapter seal leaks, axle seal leaks, exhaust manifold cracks (4.0L), transfer case chain stretch, body mount corrosion, NP231 transfer case chain wear.

Recall Information:

Refer to NHTSA or manufacturer website for any applicable safety recalls for 2004-2005 models.

📚 Vehicle History

Jeep Legacy:

Jeep has a storied history dating back to World War II, known for its ruggedness and off-road prowess. The Wrangler is the direct descendant of the original Willys MB.

Tj Generation:

The TJ Wrangler, introduced for the 1997 model year, represented a significant departure from its YJ predecessor by returning to round headlights and adopting coil spring suspension for improved ride and off-road articulation.

Manufacturing Location:

Toledo, Ohio, USA.

Tj Production Span:

1997-2006.

🏆 Awards & Recognition

Off Road Acclaim:

Consistently recognized by off-road publications and enthusiasts for its superior articulation, durability, and modification potential.

Value Retention:

Jeep Wranglers, including the TJ generation, are known for strong resale value due to their iconic status and off-road desirability.