Target Audience:
DIY enthusiasts, professional mechanics, restoration specialists
Value Proposition:
Cost-effective alternative to dealership service; empowers owners with comprehensive repair knowledge.
Ease Of Use:
Numbered instructions, indexed content, and clear structure (Group Tab Locator) facilitate quick information retrieval.
Digital Advantages:
Instant download, searchable content, printable pages for workshop use, prevents physical wear and tear.
Powertrain Systems:
Engine, Fuel System, Exhaust System, Cooling System, Automatic Transmission
Chassis Systems:
Suspension, Differential & Driveline, Brakes, Steering, Tires/Wheels, Frame & Bumpers
Electrical & Electronic Systems:
Audio/Video, Chime/Buzzer, Clock, Electronic Control Modules (ECMs/PCMs), Engine Systems (Control), Heated Systems, Horn, Ignition Control, Instrument Cluster, Lamps, Message Systems, Power Systems, Restraints (Airbags), Speed Control, Vehicle Theft Security, Wipers/Washers, Navigation/Telecommunication, Wiring Diagrams
Body & Comfort Systems:
Body, Heating & Air Conditioning (HVAC), Emissions Control
Diagnostic Procedures:
Component testing, fault code diagnosis (DTC Index included)
Repair Procedures:
Detailed step-by-step instructions for disassembly, assembly, adjustment, repair, and overhaul of all major components and systems
Maintenance Procedures:
Lubrication, fluid changes, filter replacements, scheduled maintenance tasks
Electrical System Procedures:
Wiring schematics, troubleshooting, component testing, repair of electrical circuits
Depth Of Information:
OEM level detail for repair, rebuild, refurbishment, and restoration. Covers basic maintenance to complex diagnostics and component-level repair.
Engine Family:
VM Motori (common in this generation WJ/WG)
Diesel Engine Displacement:
Likely 2.5L or 2.7L, specific to the WG/WJ diesel variants sold in relevant markets (e.g., Europe, Australia).
Engine Code Example:
e.g., VM 425, VM 41-C (specific codes would be detailed in the manual)
Typical Horsepower:
Approx. 115-140 hp for 2.5L, 163 hp for 2.7L (varies by specific engine variant and market)
Typical Torque:
Approx. 250-300 lb-ft (varies by specific engine variant and market)
Fuel Injection Type:
Common rail direct injection (CRDI) or similar advanced diesel injection system
Turbocharger:
Standard feature, typically intercooled
Transmission Type:
Automatic Transmission (likely Mercedes-Benz sourced 5-speed automatic for diesel variants)
Transmission Model Example:
e.g., NAG1 (W5A580) or similar
Optional Transmission:
Manual Transmission (less common for diesel models, but possible depending on market)
Transmission Fluid Type:
Specific ATF (e.g., Dexron III/VI, or Mercedes-specific fluid like MB 236.10/236.14) - detailed in manual
Wheelbase:
Approx. 116 inches (2946 mm)
Length:
Approx. 189.4 inches (4810 mm)
Width:
Approx. 73.3 inches (1862 mm)
Height:
Approx. 67.5 inches (1715 mm)
Curb Weight:
Approx. 4,500 - 4,800 lbs (2041 - 2177 kg) depending on engine and options
Towing Capacity:
Up to 5,000-7,000 lbs (2268-3175 kg) depending on configuration and trailer brake system
NHTSA Front Impact Rating:
4-star (for driver and passenger) in 2002 model year.
IIHS Side Impact Rating:
Acceptable (depending on specific year and equipment)
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Traction Control System (TCS)
Airbags:
Frontal airbags for driver and passenger, optional side airbags
Seatbelts:
Three-point seat belts with pretensioners for front occupants
Oil Change Interval:
Typically 5,000-7,500 miles (8,000-12,000 km) or 6-12 months, depending on driving conditions (refer to manual for specific diesel recommendation).
Fuel Filter Replacement:
Crucial for diesel engines; interval usually around 15,000-30,000 miles (24,000-48,000 km) or as specified by the manufacturer.
Coolant Flush Interval:
Typically every 30,000-50,000 miles (48,000-80,000 km) or 2-3 years.
Engine Oil Specification:
Specific diesel engine oil, likely API CJ-4 or higher, with appropriate viscosity grade (e.g., 5W-40 or 15W-40) - consult manual for precise spec.
Coolant Specification:
Ethylene glycol-based coolant, typically HOAT (Hybrid Organic Additive Technology) or OAT (Organic Additive Technology) – consult manual for specific type and color.
Diesel Engine Common Issues:
Glow plug system issues, EGR valve problems, injector wear, turbocharger maintenance, potential for fuel system contamination if fuel quality is poor. Crankshaft pulley harmonic balancer failures are also noted on some diesel engines of this era.
Wj Chassis Common Issues:
Front axle universal joint (U-joint) wear, catalytic converter failure, minor electrical gremlins, HVAC blower motor issues, and potential for transfer case actuator problems.
Jeep Legacy:
Jeep has a long history of producing capable off-road vehicles, building on its military heritage.
Wj Generation:
The WJ Grand Cherokee (1999-2004) was a significant evolution, featuring unibody construction, independent front suspension, and a more refined interior compared to its predecessor (ZJ).
Diesel Variant Introduction:
Diesel engines were primarily offered in international markets (WG designation) to meet demand for fuel efficiency and torque.
Manufacturing Locations:
USA (Jefferson North Assembly Plant, Detroit, Michigan) and Austria (for WG models).
