🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Year:

2002

Chassis Code:

WG (export/international market variant)

Engine Code 2002 Wk Wg:

e.g., 4.0L Power Tech I6 (MVP), 4.7L PowerTech V8 (NHO), 2.7L CRD V6 (ENC), 3.1L TD V6 (527) - Specific code depends on region and engine

👋 Introduction

Segment:

Mid-size Luxury SUV

Target Audience:

Families, off-road enthusiasts, those seeking a capable and comfortable SUV with premium features.

Key Competitors:

Ford Explorer, Toyota 4Runner, Chevrolet Blazer, Nissan Pathfinder, Lexus RX, BMW X5, Mercedes-Benz ML-Class.

Distinguishing Features:

Jeep's legendary off-road capability (Quadra-Drive II system), comfortable interior, available powerful V8 engines, robust build quality.

📋 Manual Details

Global Coverage Regions:

Primarily for WG (export/international market) variants, though much content may overlap with WK (North American) models. Covers all regions where the WG was sold.

Estimated Page Count:

Likely 2000+ pages (typical for comprehensive workshop manuals covering multiple powertrains and options)

Type:

Workshop Service Repair Manual (WSRM)

Language:

English (as indicated by typical availability for download, though multi-language versions may exist)

Format:

Downloadable Digital Format (e.g., PDF)

📖 Manual Coverage

Powertrain:

Engine mechanical (4.0L I6, 4.7L V8, 2.7L CRD V6, 3.1L TD V6), engine electrical, cooling system, fuel system, exhaust system, transmission (45RFE, 545RFE, NV3500 manual where applicable), transfer case (NV247, NV242, Quadra-Drive II), driveline, axles, driveshafts, differentials

Chassis:

Suspension (front and rear independent suspension), steering system, braking system (ABS, power assist), wheels and tires

Electrical:

Body electrical, lighting, instrumentation, HVAC controls, power accessories (windows, locks, seats), audio system, diagnostic systems (OBD-II), wiring diagrams, fuse/relay locations

Body:

Body and frame construction, exterior trim, interior trim, doors, windows, glass, seats, airbags, body sealing, paint

Maintenance:

Scheduled maintenance intervals, fluid level checks, filter replacements, lubrication points, tire rotation

Diagnostics:

Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, symptom-based diagnostics, electrical system diagnostics

Repair And Overhaul:

Detailed step-by-step repair procedures for all major components, engine rebuild specifications, transmission overhaul, suspension component replacement, brake service, electrical component repair/replacement, body panel repair

Specifications And Tolerances:

Torque specifications, clearances, fluid capacities, electrical specifications, component tolerances, diagnostic specifications

Depth:

Comprehensive, covering basic to advanced repairs, diagnostics, and component overhaul. Suitable for professional technicians and advanced DIY enthusiasts.

📊 Manual Specifications

File Type:

Digital Document (e.g., PDF)

Quality:

High-resolution scans or digitally created content, optimized for clarity of diagrams and text. Searchable text functionality is often included in PDF versions.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Displacement Gas 1:

4.0 Liters (242 cu. in.)

Engine Configuration Gas 1:

Inline-6 (I6), Overhead Valve (OHV), 'Power Tech' I6

Engine Horsepower Gas 1:

Approx. 195 hp @ 4600 rpm

Engine Torque Gas 1:

Approx. 230 lb-ft @ 3200 rpm

Engine Displacement Gas 2:

4.7 Liters (285 cu. in.)

Engine Configuration Gas 2:

V8, Single Overhead Cam (SOHC), 'PowerTech' V8

Engine Horsepower Gas 2:

Approx. 220 hp @ 4700 rpm

Engine Torque Gas 2:

Approx. 285 lb-ft @ 3400 rpm

Engine Displacement Diesel 1:

2.7 Liters (165 cu. in.)

Engine Configuration Diesel 1:

Inline-5 (I5) Common Rail Diesel (CRD), 'ENC' designation

Engine Horsepower Diesel 1:

Approx. 161 hp @ 4000 rpm

Engine Torque Diesel 1:

Approx. 295 lb-ft @ 1800 rpm

Engine Displacement Diesel 2:

3.1 Liters (189 cu. in.)

Engine Configuration Diesel 2:

V6 Turbo Diesel, '527' designation

Engine Horsepower Diesel 2:

Approx. 140 hp @ 4000 rpm

Engine Torque Diesel 2:

Approx. 295 lb-ft @ 1800 rpm

Fuel Delivery Gas:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Delivery Diesel:

Common Rail Direct Injection (CRD) for 2.7L, Direct Injection for 3.1L TD

0 60 Mph 4.0L:

Approx. 9.5 - 10.5 seconds

0 60 Mph 4.7L:

Approx. 8.5 - 9.5 seconds

0 60 Mph 2.7L Crd:

Approx. 10.5 - 11.5 seconds

🔧 Transmission

Transmission Auto:

4-speed automatic (45RFE/545RFE)

Transmission Manual:

5-speed manual (NV3500, less common on WG, primarily North American WK)

Transfer Case Standard:

Selec-Trac (NV242) or Quadra-Trac II (NV247) depending on trim/options

Transfer Case Optional:

Quadra-Drive II (NV247 with electronic limited-slip differentials front and rear)

Automatic Transmission Fluid:

Mopar ATF+4 (Type 9602) or equivalent specification.

📐 Dimensions

Wheelbase:

116.1 inches (2950 mm)

Length:

184.6 inches (4690 mm)

Width:

71.9 inches (1826 mm)

Height:

67.3 inches (1709 mm)

Cargo Volume Behind 2Nd Row:

Approx. 39.4 cu. ft. (1116 L)

Cargo Volume Max:

Approx. 72.3 cu. ft. (2047 L)

Curb Weight 4.0L:

Approx. 4200 - 4400 lbs (1905 - 2000 kg)

Curb Weight 4.7L:

Approx. 4400 - 4600 lbs (2000 - 2087 kg)

Towing Capacity:

Up to 5,000 lbs (2268 kg) with optional towing package

🛡️ Safety Features

NHTSA Frontal Crash Test Driver:

4 Stars (2002 model year evaluation)

NHTSA Frontal Crash Test Passenger:

4 Stars (2002 model year evaluation)

IIHS Small Overlap Frontal Offset:

Not Rated (IIHS testing for this type of test began later)

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional (often bundled with 4WD systems or as part of Quadra-Drive II)

Electronic Stability Control:

Not commonly available on the 2002 model year. Introduced on later generations.

Airbags Front:

Standard front driver and passenger airbags

Airbags Side:

Optional front-seat side-impact airbags

Seatbelts:

Three-point seat belts for all seating positions

💡 Technology Features

Audio System Options:

Factory AM/FM/CD player, optional premium Infinity audio system with subwoofer, optional cassette player, available CD changer.

Navigation:

Optional factory navigation system available on higher trim levels.

Cruise Control:

Standard cruise control.

Parking Sensors:

Optional rear parking assist sensors.

Auxiliary Inputs:

No factory auxiliary audio input (3.5mm jack) on standard systems. Requires aftermarket adapter.

🔧 Maintenance

Oil Change Interval Gas:

Every 3,000 - 5,000 miles (4,800 - 8,000 km) or 6 months, depending on driving conditions. Check manual for specific recommendations.

Oil Change Interval Diesel:

Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 12 months. Diesel-specific.

Engine Coolant Flush:

Every 30,000 miles (48,000 km) or 2 years.

Transmission Fluid Change:

Every 30,000 - 60,000 miles (48,000 - 96,000 km) for automatic transmission. Heavy towing or off-roading may necessitate more frequent changes.

Engine Oil 4.0L Gas:

SAE 5W-30, API Certified (e.g., MS-6395)

Engine Oil 4.7L Gas:

SAE 5W-30, API Certified (e.g., MS-6395)

Engine Oil 2.7L Crd:

SAE 0W-40 or 5W-40, API CI-4 or CH-4 rated diesel engine oil.

Coolant:

Mopar OAT (Orange) Antifreeze/Coolant or equivalent (typically a 50/50 mix with distilled water).

Transfer Case Fluid:

For NV247 (Quadra-Trac II/Quadra-Drive II): Mopar NV247 Transfer Case Lubricant or equivalent.

Cooling System:

Radiator leaks, thermostat housing leaks, heater core issues, and plastic intake manifold coolant crossover failures.

Engine 4.7L V8:

Valve seat recession on early models, piston slap, and potential intake manifold gasket leaks.

Transmission 45Rfe/545Rfe:

Torque converter shudder, potential solenoid issues, and overheating can lead to premature wear.

Suspension:

Worn control arm bushings, ball joints, and steering components due to weight and mileage.

Electrical:

Instrument cluster failures (common on WJ), blower motor resistor issues, and window regulator failures.

📚 Vehicle History

Jeep Legacy:

Jeep is synonymous with off-road capability and ruggedness, tracing its origins back to WWII military vehicles.

Grand Cherokee Wjs Generation:

The 2002 Grand Cherokee belongs to the second generation (WJ), introduced for the 1999 model year. The WJ represented a significant refinement over the ZJ, offering a more refined ride, improved interior quality, and advanced features like the Quadra-Drive system.

Manufacturing Location:

Primarily Jefferson North Assembly Plant, Detroit, Michigan, USA (for WK) and other international facilities for WG variants.

Model Year Range:

1999-2004

🏆 Awards & Recognition

Competitor Comparisons:

Consistently ranked well in comparison tests for its blend of luxury, capability, and V8 power.

Motor Trend SUV Of The Year:

Although the 1999 WJ generation was a finalist, it did not win SUV of the Year for 1999 (won by Ford Explorer). However, it was well-regarded.