Segment:
Mid-size Luxury SUV
Key Differentiators:
Robust off-road capability, refined interior, powerful engine options
Direct Competitors:
Ford Explorer, Toyota 4Runner, Chevrolet Blazer, Land Rover Discovery
Powertrain Options:
Inline-6, V8, and Diesel engines with various 4WD systems
Off Road Systems:
Quadra-Trac II, Selec-Trac, and available locking differentials
Applicable Engine Variants:
4.0L Inline-6 Petrol, 4.7L V8 Petrol, 2.7L Diesel
Manual Type:
Workshop Service Repair Manual & Parts Catalogues
Page Count:
Over 2000 Pages
Platform Compatibility:
Windows & Mac
Printability:
Printable individual pages
Engine Service:
Lubrication, Maintenance, Cooling, Fuel, Exhaust, Emissions Control
Drivetrain Service:
Differential & Driveline, Transfer Case (NV242, NV247), Automatic Transmissions (42RE, 545RFE)
Chassis Service:
Suspension, Brakes, Steering, Wheels & Tyres, Frame & Bumpers
Electrical Systems:
Audio, Chime/Buzzer, Electronic Control Modules, Horn, Ignition, Instrument Cluster, Lamps, Message Systems, Power Systems, Security, Speed Control, Wiring
Body And Comfort:
Body, Heating & Air Conditioning, Heated Systems, Restraints, Wash/Wipe
Maintenance Procedures:
Scheduled maintenance, fluid changes, filter replacements, lubrication points
Diagnostic Procedures:
Troubleshooting guides, fault code interpretation, diagnostic flowcharts
Repair Procedures:
Component removal, installation, adjustment, and overhaul for all covered systems
Diagnostic Capability:
Advanced diagnostics for electronic control modules and powertrain systems
Rebuild Instructions:
Detailed instructions for engine, transmission, and transfer case rebuilds
Schematics And Diagrams:
Comprehensive wiring diagrams, vacuum diagrams, and exploded views
Engine Name:
4.0L Power Tech I6
Displacement:
3952 cc (241.1 cu in)
Bore X Stroke:
98.3 mm x 86.7 mm (3.87 in x 3.41 in)
Horsepower Approx:
190 hp @ 4600 rpm
Torque Approx:
235 lb-ft @ 3200 rpm
Fuel System:
Sequential Multi-Port Fuel Injection (MPI)
Engine Name:
4.7L Magnum V8
Displacement:
4701 cc (286.8 cu in)
Bore X Stroke:
93.0 mm x 86.5 mm (3.66 in x 3.41 in)
Horsepower Approx:
235 hp @ 4500 rpm (1998-2001), 260 hp @ 5200 rpm (2002-2004)
Torque Approx:
295 lb-ft @ 3200 rpm (1998-2001), 325 lb-ft @ 3800 rpm (2002-2004)
Fuel System:
Sequential Multi-Port Fuel Injection (MPI)
Engine Name:
2.7L CRD (Common Rail Diesel) - Mercedes-Benz OM664
Displacement:
2685 cc (163.8 cu in)
Horsepower Approx:
141 hp @ 4000 rpm
Torque Approx:
273 lb-ft @ 1800 rpm
Fuel System:
Common Rail Direct Injection (CRDI)
NHTSA Front Impact:
4 Stars (Driver), 4 Stars (Passenger)
Braking System:
4-wheel disc brakes with ABS
Traction Control:
Available on some models
Airbags:
Front airbags, optional side airbags
Seatbelts:
3-point height-adjustable front seat belts with pretensioners
Oil Change Interval:
Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6 months, depending on driving conditions
Transmission Fluid Change:
Every 30,000 - 60,000 miles (48,000 - 96,000 km) or as recommended in manual
Engine Oil Specification:
SAE 5W-30 (for 4.0L and 4.7L gasoline engines)
Engine Oil Capacity:
4.0L: 6 quarts (5.7 L), 4.7L: 7 quarts (6.6 L)
Coolant Specification:
Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, Orange
Common Problems 4.0L:
Cracked cylinder heads (late models), intake manifold gasket leaks, valve cover gasket leaks
Common Problems 4.7L:
Cracked cylinder heads, timing chain guides, valve stem seals, oil filter adapter leaks
Common Problems 2.7L Diesel:
Glow plug issues, fuel injector problems, turbocharger wear
Transmission Issues:
Overheating, torque converter shudder, solenoid issues (42RE, 45RFE/545RFE)
Transfer Case Issues:
Chain stretch, viscous coupler failure (NV247)
Brand Focus:
Rugged off-road capability and American heritage
Generation Introduction:
The WJ generation replaced the ZJ Grand Cherokee, introducing a more refined and modern design
Key Updates:
Introduction of the 4.7L V8 engine, updated interior and exterior styling, improved NVH characteristics
Manufacturing Locations:
Jefferson North Assembly, Detroit, Michigan, USA
