Positioning:
Iconic Off-Road Vehicle, Known for Trail Capability and Simplicity
Competitors:
Land Rover Defender, Toyota FJ Cruiser (though slightly later), Suzuki Samurai
Features Vehicle:
Solid Front and Rear Axles, Command-Trac NV241OR Transfer Case, Removable Doors and Top
Value Proposition:
Enables DIY maintenance and repair, saving significant costs and empowering owners.
Engine:
All Engine Variants (e.g., 4.0L Inline 6)
Transmission:
Manual & Automatic Transmissions
Drivetrain:
4WD System, Axles, Transfer Case
Suspension:
Front & Rear Suspension, Steering System
Brakes:
Hydraulic Brake System, ABS (if equipped)
Electrical:
Wiring Diagrams, Lighting, Accessories, ECU Diagnostics
Body:
Body & Frame Repair, Doors, Panels, Convertible Top
HVAC:
Heating, Ventilation, and Air Conditioning
Fuel:
Fuel System Components, Fuel Pump, Injectors
Exhaust:
Exhaust System Components
Cooling:
Cooling System, Radiator, Thermostat
Maintenance:
Scheduled Maintenance, Fluid Changes, Filter Replacements
Diagnostics:
Troubleshooting Guides, Symptom-Based Diagnostics
Repair:
Step-by-Step Repair Procedures for All Major Components
Disassembly Assembly:
Detailed Reassembly and Disassembly Instructions
Wiring Diagrams:
Comprehensive Electrical Schematics
Specifications:
Torque Values, Tolerances, P/N, Diagnostic Trouble Codes (DTCs)
Depth:
Complete Professional Level Coverage (from basic maintenance to full engine rebuilds)
Engine Type:
Inline 6-Cylinder, Overhead Valve (OHV)
Engine Code:
AMC 242 (4.0L)
Displacement:
3960 cc (242 cubic inches)
Bore X Stroke:
3.875 in x 3.570 in (98.4 mm x 90.7 mm)
Horsepower Net:
190 hp @ 4750 rpm
Torque Net:
235 lb-ft @ 3200 rpm
Fuel Type:
Unleaded Gasoline
Fuel Delivery:
Multi-Port Fuel Injection (MPI)
Fuel Pump Pressure:
39-49 PSI
Ignition System:
Distributorless Ignition System (DIS)
ECU Type:
NGC (Next Generation Controller)
Transmission Type:
NV3550 5-Speed Manual
Transmission Type:
42RLE 4-Speed Automatic
Transfer Case:
NV241OR Command-Trac (Part-Time, 2.72:1 Low Range)
Manual Transmission Fluid:
Axle & Manual Transmission Lubricant (API GL-5), SAE 75W-90
Automatic Transmission Fluid:
ATF+4 (MS-9602)
NHTSA Rollover Resistance:
3 Stars (Based on 2004 Model Year Data)
ABS:
Optional Anti-lock Braking System (4-wheel disc brakes)
Traction Control:
Not typically available on 2004 models
Airbags:
Driver and Passenger Front Airbags
Seat Belts:
3-Point Front Seat Belts, Lap Belts in Rear
Oil Change Interval:
Every 5,000 miles (8,000 km) or 6 months, whichever comes first
Air Filter Replacement:
Every 15,000 miles (24,000 km) or annually
Spark Plug Replacement:
Every 100,000 miles (160,000 km) with Quad SP-402 (or equivalent)
Transmission Fluid Change Auto:
Every 60,000 miles (96,000 km)
Transmission Fluid Change Manual:
Every 60,000 miles (96,000 km)
Engine Oil Type:
SAE 10W-30 (API SJ or higher)
Engine Oil Capacity:
5 Quarts (4.7 Liters) with filter change
Coolant Type:
Chrysler OAT (Orange) or equivalent, 50/50 mix with distilled water
Common Problems:
Leaking rear main seal, transmission input shaft seal leaks, exhaust manifold cracks, rust on frame and body panels, death wobble (if suspension/steering components are worn).
