Jeep Grand CHEROKEE WJ 4X2 (LHD) 2002 Service Repair Manual

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🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Model Code: WJ Year: 2002 Drivetrain: 4x2 (Two-Wheel Drive) Steering Position: Left-Hand Drive (LHD) Market Segment: Mid-size/Full-size SUV 👋 Introduction Market...

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标签: 2002 Car Cars Grand CHEROKEE WJ 4X2 (LHD) Jeep Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Grand Cherokee

Model Code:

Year:

Drivetrain:

4x2 (Two-Wheel Drive)

Steering Position:

Left-Hand Drive (LHD)

Market Segment:

Mid-size/Full-size SUV

👋 Introduction

Market Position

Positioning:

The Jeep Grand Cherokee WJ (1999-2004) solidified Jeep's position in the premium mid-size SUV market, blending robust capability with increased refinement over its predecessors.

Competitive Analysis

Competitors:

Competed with vehicles like the Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, and Land Rover Discovery.

Key Features

Platform:

Built on a unibody chassis for improved on-road manners compared to body-on-frame SUVs.

Engine Options:

Offered with the venerable 4.0L inline-6 and the more powerful 4.7L V8 Magnum engines.

Interior:

Known for a more luxurious and car-like interior than earlier Jeep models.

Manual Purpose

Utility:

Essential for owners and technicians to maintain, diagnose, and repair all aspects of the 2002 Jeep Grand Cherokee WJ 4x2.

📋 Manual Details

Coverage Areas

Primary Coverage:

Comprehensive mechanical and electrical repair and maintenance

Diagnostic Coverage:

Troubleshooting procedures for all major systems

Page Count

Estimated Pages:

1500+

Manual Type

Type:

Service and Repair Manual

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine:

Complete coverage including overhaul, diagnostics, fuel injection, ignition, lubrication, cooling, and emissions control

Transmission:

Service, repair, and diagnostics for automatic transmission (e.g., 45RFE, 545RFE)

Drivetrain:

Service and repair for 2WD (RWD) driveline components, rear axle, driveshafts, U-joints

Suspension:

Front and rear suspension systems, steering, alignment specifications

Brakes:

Hydraulic system, ABS, brake component replacement, bleeding procedures, specifications

Electrical System:

Wiring diagrams, component location, charging system, starting system, lighting, accessories, body control module (BCM)

HVAC:

Air conditioning, heating, ventilation system diagnostics and repair

Body:

Exterior and interior trim, doors, windows, locks, body panel repair, glass replacement

Chassis:

Frame inspection and repair, component mounting

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks, tune-ups

Repair:

Step-by-step repair procedures for all major components and systems

Diagnostics:

System-level diagnostics, fault code interpretation, troubleshooting guides

Overhaul:

Detailed procedures for engine and transmission rebuilds

Installation:

Component replacement and installation guidance

Troubleshooting:

Flowcharts and symptom-based guides for problem diagnosis

Technical Depth

Depth:

Comprehensive, covering basic maintenance to complete engine/transmission overhauls and advanced electrical diagnostics

📊 Manual Specifications

File Format

File Type:

Searchable:

Yes (text-searchable content)

Print Quality

Quality:

High-resolution scans, suitable for printing

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine 1:

4.0L I6 (242 cubic inch) Power-Tech

Engine 1 Displacement:

3952 cc

Engine 1 Bore X Stroke:

3.88 x 3.41 inches (98.5 x 86.7 mm)

Engine 1 Compression Ratio:

8.8:1

Engine 1 Horsepower:

190 hp @ 4600 RPM (approx.)

Engine 1 Torque:

235 lb-ft @ 3200 RPM (approx.)

Engine Options

Engine 2:

4.7L V8 (285 cubic inch) Magnum

Engine 2 Displacement:

4701 cc

Engine 2 Bore X Stroke:

3.70 x 3.35 inches (94.0 x 85.0 mm)

Engine 2 Compression Ratio:

9.0:1

Engine 2 Horsepower:

235 hp @ 4000 RPM (approx.)

Engine 2 Torque:

295 lb-ft @ 3200 RPM (approx.)

Fuel System

Fuel Injection:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

Octane Rating:

87 minimum (91 recommended for 4.7L for optimal performance)

Engine Management

Engine Control Unit (ECU) with OBD-II diagnostics

🔧 Transmission

Standard

Transmission Type 4X2:

45RFE or 545RFE 4-speed automatic transmission

Optional

Transmission Type 4X4:

N/A for 4x2 model (4WD models used NV242 transfer case)

Features

Overdrive:

Yes (4th gear)

Tow Haul Mode:

Available on some configurations

Fluid Type

Fluid Specification:

ATF+4 (Mopar)

Fluid Capacity

Capacity Approx:

9.5 pints (4.5 liters) for dry fill

📐 Dimensions

Exterior

Length:

189.4 inches (4811 mm)

Width:

74.8 inches (1900 mm)

Height:

66.5 inches (1689 mm)

Wheelbase:

116.0 inches (2946 mm)

Ground Clearance:

8.7 inches (221 mm) for 4.7L, 8.0 inches (203 mm) for 4.0L

Weights

Curb Weight:

4100 - 4400 lbs (approx. depending on engine and options)

Gross Vehicle Weight Rating:

5800 - 6000 lbs (approx.)

Cargo

Cargo Volume Behind Rear Seat:

33.0 cubic feet (0.93 m³)

Cargo Volume With Rear Seat Folded:

70.0 cubic feet (1.98 m³)

🛡️ Safety Features

Ratings

NHTSA Rollover Resistance:

3-star rating (check specific NHTSA reports for detailed analysis)

Active Features

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional on some trims

Passive Features

Airbags:

Standard front airbags for driver and passenger

Seat Belts:

3-point seat belts for all occupants

Child Safety Anchors:

LATCH system (Lower Anchors and Tethers for Children)

💡 Technology Features

Infotainment

Audio Options:

Factory AM/FM stereo with CD player, optional premium sound systems (Infinity Gold).

Navigation:

Optional factory navigation system available on higher trims.

Driver Assistance

Cruise Control:

Standard on most trims.

Keyless Entry:

Optional.

Connectivity

OBD Ii:

On-Board Diagnostics II compliant, enabling diagnostic code retrieval.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used (refer to owner's manual for specific recommendations).

Transmission Fluid Change:

Every 30,000-60,000 miles (ATF+4 is typically a longer-life fluid, consult manual).

Coolant Flush:

Every 30,000-60,000 miles or 2-4 years.

Spark Plug Replacement:

4.0L I6: approx. 100,000 miles. 4.7L V8: approx. 60,000-100,000 miles (depending on plug type).

Fluid Specifications

Engine Oil:

SAE 5W-30 or 10W-30 (check owner's manual for specific recommendations based on temperature)

Coolant:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, or equivalent HOAT (Hybrid Organic Additive Technology) meeting Chrysler MS-9769 or MS-10899, typically a 50/50 mix with distilled water.

Brake Fluid:

DOT 3 or DOT 4

Known Issues

Common Problems:

Headliner sagging, rear main seal leaks (especially on 4.7L V8), catalytic converter issues, radiator failure (plastic tanks cracking), intake manifold gasket leaks (on 4.7L V8), power steering pump whine.

Specific Faults Covered:

The manual will detail troubleshooting and repair for these common issues and many others.

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Jeep has a long-standing reputation for ruggedness and off-road capability, originating from its WWII military roots.

Model Evolution

Wj Generation:

The WJ generation (1999-2004) represented a significant step forward in refinement and comfort for the Grand Cherokee, moving closer to luxury SUV standards while retaining some Jeep identity.

Production

Assembly Location:

Jefferson North Assembly Plant in Detroit, Michigan, USA

Production Years

Wj Production Years:

1999-2004

🏆 Awards & Recognition

Recognitions

Automotive Journal Awards:

The WJ Grand Cherokee received positive reviews from automotive publications for its improved ride quality and interior compared to previous generations, often cited as a strong competitor in its class.

Ratings

Consumer Reports:

Consumer Reports ratings varied for the WJ generation, with some years showing average or below-average predicted reliability, particularly for the 4.7L V8 engine.