🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Year:

2004

Chassis Code:

TJ

👋 Introduction

Positioning:

The Jeep Wrangler (TJ) is an iconic off-road capable vehicle, known for its ruggedness and distinctive styling. The 2004 model represents a mature iteration of the TJ platform, offering a blend of classic Jeep utility with modern refinements.

Competitors:

While direct competitors in the compact SUV segment existed, the Wrangler's unique open-air, body-on-frame, solid axle configuration set it apart, primarily competing with itself and other off-road focused vehicles.

Features:

Solid front and rear axles, iconic seven-slot grille, removable doors and roof, excellent off-road articulation and ground clearance.

📋 Manual Details

Engine Coverage:

4.0L (Power Tech inline 6-cylinder), 2.4L (World inline 4-cylinder)

Transmission Coverage:

NV3550 5-Speed Manual, NV241OR Command-Trac NV241OR-HD Transfer Case, 42RLE 4-Speed Automatic

Chassis Coverage:

Frame, Suspension (Front & Rear), Steering System, Brakes System, Wheels & Tires

Electrical Coverage:

Wiring Diagrams, Lighting, Instruments & Gauges, Power Accessories, Battery & Charging System, Ignition System

Body Coverage:

Body & Frame Repair, Exterior & Interior Trim, Doors, Hood, Tailgate, Convertible Top (Soft Top & Hard Top)

HVAC Coverage:

Heating, Ventilation, and Air Conditioning (HVAC) System

Safety Coverage:

Airbags, Seat Belts, Anti-lock Braking System (ABS)

Maintenance Schedule:

Recommended maintenance schedule by mileage and time intervals

Troubleshooting Guide:

Diagnostic procedures for common issues

Estimated Pages:

1500+

Type:

Service and Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Management:

Engine mechanical, fuel injection, ignition, cooling, lubrication, emission controls

Drivetrain:

Clutch, transmission, transfer case, axles, driveshafts, differentials

Suspension Steering:

Front and rear suspension components, steering gear, power steering

Brakes:

Disc brakes (front and rear), Anti-lock Braking System (ABS), parking brake

Electrical Power:

Battery, charging system, starter motor, ignition system, lighting, instruments

Body Chassis:

Body panels, interior trim, doors, windows, seats, convertible top system

HVAC Comfort:

A/C compressor, heater core, blower motor, controls, refrigerant system

Safety Restraints:

Airbag system, seat belt pre-tensioners

Maintenance Tasks:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement

Repair Procedures:

Engine overhaul, transmission rebuilds, suspension component replacement, brake service, electrical component diagnosis and repair

Diagnostic Troubleshooting:

Step-by-step troubleshooting guides for common and uncommon problems, symptom-based diagnostics

Disassembly Assembly:

Detailed instructions for component removal and installation

Wiring Diagrams:

Comprehensive electrical schematics for all systems

Specifications Tolerances:

Torque specifications, clearances, fluid capacities, pressure readings

Depth:

Comprehensive - covers everything from routine maintenance to complete engine and transmission overhauls, including advanced diagnostics and electrical system troubleshooting.

📊 Manual Specifications

File Type:

PDF

Searchable Text:

Yes

Printable:

Yes

Quality:

High-resolution, clear text and diagrams

Binding:

Digital Download (PDF)

Paper:

N/A (Digital)

⚙️ Engine Specifications

Engine 1:

4.0L Inline 6-Cylinder (Power Tech)

Engine 1 Displacement:

3952 cc (241 cu in)

Engine 1 Horsepower:

190 hp @ 4600 rpm

Engine 1 Torque:

235 lb-ft @ 3200 rpm

Engine 2:

2.4L Inline 4-Cylinder (World)

Engine 2 Displacement:

2378 cc (145 cu in)

Engine 2 Horsepower:

147 hp @ 5200 rpm

Engine 2 Torque:

170 lb-ft @ 4000 rpm

Fuel Delivery:

Multi-Point Fuel Injection (MPI)

Recommended Fuel:

87 Octane Unleaded Gasoline

🔧 Transmission

Transmission Type Standard:

NV3550 5-Speed Manual

Transmission Type Optional:

42RLE 4-Speed Automatic

Transfer Case:

NV241OR Command-Trac NV241OR-HD (2-speed, part-time, manual shift)

Manual Transmission Fluid:

Mopar Manual Transmission Lubricant (or equivalent API GL-3/GL-4, SAE 75W-90)

Automatic Transmission Fluid:

ATF+4 (Mopar P/N 05013457AA or equivalent)

Manual Transmission Capacity:

Approx. 2.4 liters (2.5 quarts)

Automatic Transmission Capacity:

Approx. 8.2 liters (8.7 quarts) (dry fill), 3.7 liters (3.9 quarts) (pan drop)

Transfer Case Capacity:

Approx. 1.9 liters (2.0 quarts) (NV241OR)

📐 Dimensions

Wheelbase:

93.4 inches (2372 mm) (2-door)

Length:

157.5 inches (4001 mm) (2-door)

Width:

72.5 inches (1841 mm)

Height:

71.0 inches (1803 mm) (with hardtop)

Cargo Volume Rear Seats Up:

38.4 cu ft (1.09 m3)

Cargo Volume Rear Seats Down:

67.2 cu ft (1.90 m3)

Curb Weight Est:

3,600 - 3,900 lbs (1633 - 1769 kg) (depending on configuration)

Towing Capacity:

2000 lbs (907 kg)

🛡️ Safety Features

NHTSA Driver Frontal Crash:

4 Stars (for 2004 model year)

NHTSA Passenger Frontal Crash:

4 Stars (for 2004 model year)

ABS:

Standard Anti-lock Braking System (ABS)

Airbags:

Driver and front-passenger airbags

Seat Belts:

Three-point seat belts with front seat pre-tensioners

💡 Technology Features

Infotainment System:

Base AM/FM radio with CD player, optional premium Infinity sound system, optional satellite radio.

Driver Assistance Features:

Limited; primarily focused on mechanical systems and basic driver controls. No advanced electronic driver-assistance systems were common for this model year.

Connectivity Features:

No integrated Bluetooth or USB ports in standard configuration. Aftermarket solutions are common.

🔧 Maintenance

Oil Change Interval Gas:

Every 3,000 - 7,500 miles (5,000 - 12,000 km) or 6 months, depending on driving conditions and oil used.

Air Filter Replacement:

Every 15,000 - 30,000 miles (24,000 - 48,000 km)

Spark Plug Replacement 4.0L:

Approx. 100,000 miles (160,000 km) (if using platinum or iridium plugs)

Transmission Fluid Change Auto:

Every 30,000 - 100,000 miles (48,000 - 160,000 km), consult manual for severe conditions.

Engine Oil Spec:

SAE 10W-30 (preferred for most conditions), SAE 5W-30 for colder climates (check owner's manual for exact recommendations)

Coolant Spec:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant (a 50/50 mix with distilled water)

Brake Fluid Spec:

DOT 3

Power Steering Fluid Spec:

ATF+4 (Mopar P/N 05013457AA or equivalent)

Common Problems:

Minor oil leaks (valve cover, oil pan), potential for aging suspension bushings, heater core leaks, exhaust manifold cracks (on 4.0L), rust (especially in areas exposed to salt).

📚 Vehicle History

Heritage:

Jeep boasts a storied heritage rooted in military vehicles, evolving into a symbol of freedom and adventure, with the Wrangler line tracing its lineage back to the original Willys MB.

Tj Generation:

The TJ generation (1997-2006) marked a significant departure from its leaf-sprung predecessors with the introduction of coil springs and a significant redesign, while retaining the classic Jeep aesthetic and off-road prowess.

Production Location:

Toledo, Ohio, USA

🏆 Awards & Recognition

Off Road Accolades:

Consistently recognized for its off-road capability and is a perennial favorite among off-roading enthusiasts.