Vehicle Segment:
Mid-size Luxury SUV
Target Audience:
Families, off-road enthusiasts, those seeking comfortable daily drivers with capability.
Key Competitors:
Ford Explorer, Toyota 4Runner, Chevrolet Blazer, Nissan Pathfinder, Land Rover Discovery
Platform Architecture:
Based on the Jeep Cherokee (XJ) platform, refined for improved ride quality and luxury.
Off Road Capability:
Renowned Jeep off-road prowess with available Quadra-Drive 4WD system.
Powertrain Options:
Available V6 and V8 engines offering robust performance.
Interior Appointments:
More refined interior than previous generations, focusing on comfort and luxury.
Powertrain:
Engine (all variants), Transmission (all variants), Transfer Case, Drivetrain (Axles, Driveshafts)
Chassis:
Suspension (Front & Rear), Steering, Brakes (Front & Rear, ABS), Wheels & Tires
Body:
Exterior Body Panels (Hood, Doors, Fenders, Bumpers, Tailgate), Interior Trim & Upholstery, Glass & Seals, Lighting, Roof Rack System
Electrical:
Engine Electrical, Powertrain Control Modules, Body Control Modules, Lighting Circuits, HVAC Electrical, Audio System Components, Power Accessories (Windows, Locks, Mirrors)
Comfort Convenience:
HVAC System (Heating, Ventilation, Air Conditioning), Seats, Pedals, Wiper System, Fuel System Components
Identification:
Component Identification via Part Numbers, Exploded View Diagrams
Assembly Disassembly:
Detailed breakdown of all major assemblies into individual components
Replacement:
Information on which parts are needed for component replacement
Detail Level:
Component-level detail with specific part numbers for OEM replacement
Diagrams:
Extensive use of exploded view diagrams for visual part referencing
Interchangeability:
May indicate part interchangeability between model years or specific sub-models where applicable.
Engine Option 1:
4.0L Inline-6 'PowerTech' (Engine Code: ERH)
Engine Option 1 Displacement:
3952 cc (241 cubic inches)
Engine Option 1 Horsepower:
190 hp @ 4600 RPM (approx.)
Engine Option 1 Torque:
235 lb-ft @ 3200 RPM (approx.)
Engine Option 2:
4.7L V8 'PowerTech' (Engine Code: EJV)
Engine Option 2 Displacement:
4701 cc (287 cubic inches)
Engine Option 2 Horsepower:
235 hp @ 4700 RPM (approx.)
Engine Option 2 Torque:
295 lb-ft @ 3200 RPM (approx.)
Engine Management:
Distributorless Ignition System (DIS), Sequential Multi-Port Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline
Fuel Tank Capacity:
20.5 US gallons (approx.)
Transmission Option 1:
4-speed Automatic (42RE)
Transmission Option 2:
4-speed Automatic (45RFE/44RE for V8)
Transfer Case Options:
NV231 (Command-Trac), NV242 (Selec-Trac), NV247 (Quadra-Drive)
Fluid Type Automatic:
ATF+4 (MS-9602)
Fluid Capacity Automatic:
Refer to manual for specific capacity (typically 6-9 quarts)
Wheelbase:
116.7 inches (approx.)
Length:
185.4 inches (approx.)
Width:
74.8 inches (approx.)
Height:
66.7 inches (approx.)
Ground Clearance:
8.4 inches (approx., varies with tire size and options)
Curb Weight:
4300 - 4700 lbs (approx., varies by configuration)
Gross Vehicle Weight Rating:
5800 - 6000 lbs (approx.)
NHTSA Front Impact Driver:
4 Stars (1999-2000 model years)
NHTSA Front Impact Passenger:
4 Stars (1999-2000 model years)
NHTSA Side Impact Front Driver:
5 Stars (1999-2000 model years)
NHTSA Side Impact Front Passenger:
5 Stars (1999-2000 model years)
ABS:
Standard 4-wheel Anti-lock Braking System (ABS)
Traction Control:
Optional (often integrated with 4WD systems)
Airbags:
Driver and Front Passenger Airbags, Optional Side Curtain Airbags (later models)
Seatbelts:
Front and Rear Seatbelts, Pretensioners for Front Seats
Audio System:
Optional premium audio systems from Infinity (e.g., 10-speaker system with subwoofer).
Navigation:
Optional factory navigation system (rare).
Cruise Control:
Standard electronic cruise control.
Parking Assist:
Optional rear parking sensors (later models).
Auxiliary Input:
Typically lacks standard auxiliary audio input; aftermarket solutions are common.
Power Outlets:
12V power outlets located in the center console and cargo area.
Oil Change Interval:
Every 3,000-7,500 miles or 6-12 months, depending on driving conditions and oil type (refer to specific manual for exact recommendation).
Transmission Fluid Change:
Every 30,000-60,000 miles for automatic transmissions (highly recommended for longevity).
Coolant Flush:
Every 30,000-100,000 miles or 2-5 years, depending on coolant type.
Spark Plug Replacement:
60,000-100,000 miles for Long-Life Iridium plugs (or as specified for original equipment).
Engine Oil Specification I6:
API SP or higher, SAE 5W-30 (preferred for most conditions)
Engine Oil Specification V8:
API SP or higher, SAE 5W-30 (preferred for most conditions)
Power Steering Fluid:
ATF+4 or Mopar Power Steering Fluid
Common Problems Powertrain:
Head gasket leaks (especially early 4.7L V8), transmission solenoid issues, transfer case chain stretch (Quadra-Trac II/Quadra-Drive).
Common Problems Chassis:
Worn front lower control arm bushings ('death wobble' in severe cases), leaking power steering pumps, seized brake calipers.
Common Problems Electrical:
HVAC blower motor resistor failure, window regulator failures, instrument cluster failures (cracked solder joints).
Common Problems Body:
Rust on rear quarter panels and rocker panels, interior plastic trim degradation, water leaks from windshield and door seals.
Jeep Legacy:
Long-standing reputation for ruggedness and off-road capability originating from WWII Willys MB.
Wj Introduction:
Introduced in 1999 as the successor to the Grand Cherokee ZJ, representing a significant redesign with a focus on improved on-road manners and a more upscale feel.
Wj Facelift:
Received a mid-cycle refresh for the 2002 model year, featuring updated styling (grille, headlights, taillights), interior enhancements, and powertrain improvements.
Manufacturing Location:
Jefferson North Assembly Plant, Detroit, Michigan, USA
Production Period:
1999-2004
Motor Trend SUV Of The Year:
Not awarded for 1999, but the Jeep brand often received accolades for its SUV offerings.
Four Wheeler Magazine 4X4 Of The Year:
Jeep models, including the Grand Cherokee, have historically been recognized for their off-road prowess by specialized publications.
