Segment:
Compact SUV / Off-Road Vehicle
Key Selling Point:
Renowned off-road capability, iconic design, and robust build.
Direct Competitors:
Toyota Tacoma (as a truck-based SUV alternative), Toyota 4Runner (older generations), Nissan Xterra, Suzuki Vitara (older generations).
Off Road Features:
Solid front and rear axles, available Dana 44 rear axle, Command-Trac NV231 transfer case (or optional NV241OR Rock-Trac on Rubicon), locking differentials (Rubicon).
Body Styles:
Two-door (standard), four-door (Unlimited variant launched in 2004 for some markets).
Vehicle Systems Covered:
Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Body, Chassis, Wiring Diagrams, Diagnostics, Maintenance, Specifications
Estimated Pages:
Approximately 1500-2500 (typical for full factory service manuals)
Type:
Factory Service Manual / Repair Manual
Engine Diagnostics:
Comprehensive diagnostic procedures, troubleshooting charts, and specifications for all engine variants.
Powertrain Repair:
Detailed repair instructions for engine, transmission (manual and automatic), transfer case, and axles.
Suspension Steering:
Repair and adjustment procedures for front and rear suspension, steering components, and alignment specifications.
Brake System:
Service and repair of brake calipers, rotors, lines, master cylinder, and ABS system (if equipped).
Electrical Diagnostics:
Extensive wiring diagrams, component locations, troubleshooting guides for all electrical systems, including lighting, ignition, and accessories.
HVAC System:
Service and repair of air conditioning, heating, and ventilation systems.
Body Chassis:
Procedures for body panel repair, interior trim, and chassis components.
Maintenance Schedules:
Detailed recommended maintenance schedules based on mileage and time intervals.
Troubleshooting Guides:
Step-by-step troubleshooting guides for common problems and diagnostic codes.
Component Rebuild:
Complete rebuild procedures for major components such as engines and transmissions.
Torque Specifications:
All necessary torque specifications for fasteners across all vehicle systems.
Diagnostic Trouble Codes:
Explanation and resolution steps for OBD-II Diagnostic Trouble Codes (DTCs).
Depth:
Comprehensive, covering everything from routine maintenance to full rebuilds and advanced diagnostics.
Engine Code Standard:
2.4L I4 (3 Prong Coil Pack, OBDI/II Hybrid Control Module)
Engine Displacement Standard:
2400 cc
Engine Type Standard:
Inline 4-cylinder, SOHC
Horsepower Standard:
122 hp @ 5200 rpm
Torque Standard:
142 lb-ft @ 3800 rpm
Engine Code Optional:
4.0L I6 (Sequential MPI)
Engine Displacement Optional:
3960 cc
Engine Type Optional:
Inline 6-cylinder, OHV, "PowerTech"
Horsepower Optional:
190 hp @ 4600 rpm
Torque Optional:
235 lb-ft @ 3200 rpm
Fuel Delivery:
Multi-Port Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline (87 Octane Recommended)
Transmission Type Standard:
5-Speed Manual (AX-5 or NV3550)
Transmission Type Optional:
4-Speed Automatic (42RLE)
Transfer Case:
NV231 Command-Trac (2WD High, 4WD High, Neutral, 4WD Low) or NV241OR Rock-Trac (Rubicon models) with 4:1 low-range ratio.
NHTSA Rollover Resistance:
3-star (as of initial testing, likely dependent on specific configuration)
Braking System:
Front: Ventilated Discs, Rear: Solid Discs. Optional ABS.
Airbags:
Standard driver and passenger front airbags.
Roll Cage:
Integral roll cage for enhanced occupant protection.
Audio System:
Factory AM/FM/CD player (single disc or optional CD/Cassette changer), available Infinity premium sound system with subwoofer.
ABS:
Optional Anti-lock Braking System (ABS) on rear wheels only for 2004, four-wheel ABS not available.
Phone Integration:
No integrated Bluetooth or smartphone connectivity from factory.
Oil Change Recommendation:
Every 3,000-7,500 miles or 6-12 months, depending on driving conditions and oil type used (consult manual for specific engine/oil).
Engine Coolant Flush:
Every 30,000 miles or 2 years.
Spark Plug Replacement 4.0L:
100,000 miles (typically use Champion copper plugs, OE spec).
Transmission Fluid Change Auto:
Every 30,000-60,000 miles (ATF+4 recommended).
Engine Oil 4.0L:
API SG or higher, SAE 10W-30.
Engine Oil 2.4L:
API SG or higher, SAE 5W-30.
Coolant:
Mopar Antifreeze/Coolant (HOAT) - Orange, 50/50 mix with distilled water.
Transmission Fluid Auto:
Mopar ATF+4 (or equivalent).
Transfer Case Fluid:
Mopar NV241 Transfer Case Fluid (or equivalent).
Common Wear Items:
Ball joints, tie rod ends, track bar bushings, water pump (especially on 4.0L), clutch components (manual transmission), exhaust manifold cracks (4.0L).
Common Leaks:
Valve cover gasket, oil pan gasket, rear main seal (especially on high mileage 4.0L).
Jeep Legacy:
Direct lineage from the original WWII Willys MB, symbolizing ruggedness and off-road prowess.
Tj Generation:
Launched for the 1997 model year, the TJ marked a significant departure from its leaf-sprung predecessor (YJ) by adopting modern coil springs for improved ride and articulation. The 2004 model year saw the introduction of the long-wheelbase Wrangler Unlimited (LJ).
Manufacturing Plant:
Toledo Complex, Toledo, Ohio, USA
