Vehicle Segment:
Mid-size Luxury SUV / Off-Road Focused SUV
Key Competitors:
Ford Explorer, Chevrolet TrailBlazer/Envoy, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery
Vehicle Strengths:
Renowned off-road capability (Quadra-Drive II system), powerful engine options, comfortable ride, spacious interior, solid build quality.
Systems:
Engine, Drivetrain, Transmission, Brakes, Suspension, Steering, HVAC, Electrical, Body, Interior, Diagnostics, Emissions
Procedures:
Routine Maintenance, Troubleshooting, Repair, Overhaul, Component Replacement, Electrical Schematics, Diagnostic Trouble Codes (DTCs)
Type:
Complete Service & Repair Manual
Powertrain:
4.0L I6 PowerTech, 4.7L V8 PowerTech engines, NV231HD, NV242, NV247, NV249 transfer cases, 42RE, 44RE, 45RFE, 545RFE automatic transmissions
Chassis:
Front & Rear Axles (Dana 30, Dana 44A), Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Traction Control System (TCS), Power Steering System, Independent Front Suspension (IFS) with Quadra-Coil design, Solid Rear Axle
Electrical:
Starting & Charging System, Ignition System, Fuel System Control, Body Control Module (BCM), Powertrain Control Module (PCM), Integrated Power Module (IPM), Lighting (Interior & Exterior), Instrumentation, Audio Systems, Power Accessories (Windows, Locks, Mirrors), Climate Control System (HVAC), Safety Systems (Airbags, Seatbelt Pretensioners)
Engine Repair:
Engine assembly/disassembly, cylinder head repair, piston/ring replacement, crankshaft/bearing service, camshaft installation, timing component replacement, cooling system service, lubrication system service
Transmission Drivetrain:
Automatic transmission fluid (ATF) changes, filter replacement, transmission removal/installation, transfer case service, axle differential service, CV joint replacement
Brakes Suspension Steering:
Brake pad/rotor replacement, caliper service, brake bleeding, suspension component inspection/replacement (shocks, struts, control arms), steering linkage service, wheel alignment procedures
Electrical Diagnostics:
Wiring diagrams, component testing, diagnostic trouble code (DTC) retrieval and interpretation, circuit troubleshooting, sensor diagnosis, module programming basics
Scope:
Comprehensive, covering everything from basic maintenance to complete engine and transmission overhauls, including detailed diagnostic procedures and electrical schematics for all factory systems.
Quality:
High-resolution, searchable PDF with selectable text for easy navigation and printing.
Readability:
Clear, legible text and diagrams, suitable for professional use.
Physical Format Description:
N/A (Digital PDF format)
Physical Format Description:
N/A (Digital PDF format)
Engine 1 Variant:
4.0L (3956cc) OHV 12-valve I6 PowerTech
Engine 1 Horsepower:
190 hp @ 4400 rpm
Engine 1 Torque:
235 lb-ft @ 3200 rpm
Engine 2 Variant:
4.7L (4701cc) OHV 16-valve V8 PowerTech
Engine 2 Horsepower:
235 hp @ 4700 rpm (1999-2001), 260 hp @ 4700 rpm (2002-2004)
Engine 2 Torque:
295 lb-ft @ 3200 rpm (1999-2001), 325 lb-ft @ 3400 rpm (2002-2004)
Fuel Delivery:
Sequential Multi-Port Fuel Injection (MPI)
Coolant Type:
Chrysler HOAT (Hybrid Organic Acid Technology) - typically pink
Transmission Type:
4-speed Automatic (42RE/44RE for 4.0L, 45RFE for 4.7L)
Transmission Type:
5-speed Automatic (545RFE for 4.7L - introduced for 2002 model year)
Transfer Cases:
NV231HD (Command-Trac part-time), NV242 (Selec-Trac full-time), NV247 (Quadra-Trac II), NV249 (Quadra-Trac full-time, less common)
42Re/44Re Atf:
ATF+4 (MS-9602)
45Rfe/545Rfe Atf:
ATF+4 (MS-9602)
NHTSA Front Driver Side Impact:
5-star (for most years)
NHTSA Front Passenger Side Impact:
5-star (for most years)
IIHS Front Offset Crash Test:
Acceptable
Traction Control:
Standard on most models, some with Electronic Traction System (ETS) or Traction Control System (TCS)
ABS:
Standard Anti-lock Braking System (ABS)
Airbags:
Driver and Passenger front airbags, optional side-impact airbags
Seatbelts:
Three-point seatbelts with pretensioners
Audio System Options:
Base AM/FM cassette/CD, optional Infinity Gold premium audio system with subwoofer.
Navigation:
Optional factory navigation system available on higher trims.
Parking Sensors:
Optional rear parking assist system available on later models.
Power Outlets:
12V auxiliary power outlets
Oil Change Interval:
Every 5,000 to 7,500 miles (3,000 miles under severe driving conditions)
Engine Oil Filter Part Number:
Commonly Mopar MO-090 or equivalent Wix/Fram/Purolator part numbers
Transmission Fluid Service:
Every 30,000 to 60,000 miles depending on driving conditions (ATF+4 recommended)
Coolant Flush Interval:
Every 30,000 miles or 2 years (for HOAT coolant)
Engine Oil Capacity 4.0L:
5.0 US quarts (4.7 L) with filter
Engine Oil Capacity 4.7L:
6.0 US quarts (5.7 L) with filter
Engine Oil Viscosity:
SAE 5W-30 (for most conditions, check owner's manual for variations)
Common Problems Wj:
Headliner sagging, transfer case chain stretch (NV247), radiator leaks, death wobble (front suspension/steering issues), intermittent electrical gremlins, PCM failures.
Interval:
Every 5,000 to 7,500 miles
Rotor Wear Limits:
Specified in manual, typically around 1-2mm thickness reduction.
Jeep Legacy:
Jeep has a long-standing heritage in off-road vehicles, dating back to WWII.
Wj Generation Introduction:
The WJ generation replaced the ZJ Grand Cherokee, marking a significant redesign with a more refined interior and exterior, and advanced four-wheel-drive systems.
Manufacturing Locations:
Jefferson North Assembly Plant in Detroit, Michigan, USA
Sales Performance:
The WJ Grand Cherokee was a strong seller for Jeep, contributing significantly to the brand's SUV dominance during its production run.
