Jeep Grand Cherokee WJ Complete Workshop Service Repair Manual 2001 2002 2003 2004

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🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation Code: WJ Production Years Covered: 2001, 2002, 2003, 2004 👋 Introduction Market Position Vehicle Segment: Mid-size Luxury SUV Competitive Analysis...

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标签: 2001 2002 2003 2004 Car Cars Grand Cherokee WJ Jeep Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Grand Cherokee

Generation Code:

Production Years Covered:

2001, 2002, 2003, 2004

👋 Introduction

Market Position

Vehicle Segment:

Mid-size Luxury SUV

Competitive Analysis

Key Competitors:

Ford Explorer, Chevrolet Blazer, Toyota 4Runner, Nissan Pathfinder, BMW X5 (early models)

Key Features

Off Road Capability:

Renowned Jeep off-road prowess, available 4x4 systems

Luxury Appointments:

Comfortable interior, premium trim levels, advanced features for its time

Towing Capacity:

Strong towing capabilities, particularly with V8 engine options

📋 Manual Details

Coverage Areas

Coverage Scope:

Complete Workshop Service and Repair

Page Count

Estimated Pages:

2000+

Manual Type

Type:

Workshop Service and Repair Manual

Language

Language:

English

Format

Format:

Downloadable Digital Format (PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

All Engine Types (4.0L I6, 4.7L V8)

Engine Performance:

Fuel injection, ignition, cooling, exhaust, emissions

Transmission:

Automatic Transmissions (42RE, 45RFE, 545RFE)

Drivetrain:

4x4 System (Quadra-Trac II, NV247 Transfer Case), Driveshafts, Axles, Differentials

Brakes:

Hydraulic System, ABS, Parking Brake

Suspension:

Front and Rear Suspension, Steering System

Electrical:

Battery, Charging System, Starting System, Lighting, Wipers, Horn, Power Accessories

Body:

Body Panels, Doors, Windows, Seats, Interior Trim, Exterior Trim

HVAC:

Heating, Ventilation, Air Conditioning System

Chassis Electrical:

Instrumentation, Cruise Control, Security System

Diagnostics:

Diagnostic Trouble Codes (DTCs), Scan Tool Procedures, Wiring Diagrams

Procedures Included

Maintenance Procedures:

Oil Changes, Filter Replacements, Fluid Checks/Changes, Tune-ups, Belt/Hose Replacement

Repair Procedures:

Engine rebuilds, transmission overhauls, brake component replacement, suspension component replacement, electrical system troubleshooting and repair

Troubleshooting Guides:

Diagnostic flowcharts for common problems, symptom-based troubleshooting

Component Replacement:

Step-by-step instructions for replacing major and minor components

Specifications:

Torque specifications, clearances, fluid capacities, electrical specifications

Wiring Diagrams:

Comprehensive electrical system schematics for all circuits

Exploded Views:

Detailed diagrams of component assemblies

Technical Depth

Depth Of Coverage:

Comprehensive, from basic maintenance to complete engine and transmission rebuilds

Diagnostic Capability:

Advanced diagnostics including DTC interpretation and related troubleshooting

Level Of Detail:

Detailed step-by-step instructions with accompanying diagrams and illustrations

📊 Manual Specifications

File Format

Digital Format:

Print Quality

Readability:

High-resolution scans for clear text and images

Binding Type

Binding:

Not Applicable (Digital Download)

Paper Type

Paper Type:

Not Applicable (Digital Download)

Searchability

Text Search:

Searchable PDF for quick information retrieval

Accessibility

Device Compatibility:

Viewable on computers, tablets, and smartphones

⚙️ Engine Specifications

Primary Engine

Engine 1 Name:

4.0L Inline-6 (PowerTech)

Engine 1 Displacement:

3956 cc

Engine 1 Horsepower:

190 hp @ 4600 rpm (approx.)

Engine 1 Torque:

235 lb-ft @ 3200 rpm (approx.)

Engine 1 Block Material:

Cast Iron

Engine 1 Head Material:

Aluminum

Engine 1 Bore X Stroke:

3.88 x 3.41 in (98.5 x 86.6 mm)

Engine 1 Compression Ratio:

8.8:1

Engine 1 Firing Order:

1-5-3-6-2-4

Secondary Engine

Engine 2 Name:

4.7L V8 (PowerTech)

Engine 2 Displacement:

4701 cc

Engine 2 Horsepower:

235 hp @ 4500 rpm (2001-2002), 230 hp @ 4600 rpm (2003-2004) (approx.)

Engine 2 Torque:

300 lb-ft @ 3200 rpm (2001-2002), 325 lb-ft @ 3200 rpm (2003-2004) (approx.)

Engine 2 Block Material:

Aluminum

Engine 2 Head Material:

Aluminum

Engine 2 Bore X Stroke:

3.88 x 3.31 in (98.5 x 84.1 mm)

Engine 2 Compression Ratio:

8.7:1

Engine 2 Firing Order:

1-8-4-3-6-5-7-2

Fuel System

Fuel Delivery:

Electronic Multi-Port Fuel Injection (MPI)

Recommended Fuel:

87 Octane Unleaded (4.0L I6), 89 Octane Unleaded (4.7L V8 recommended)

🔧 Transmission

Standard

Transmission Type:

4-Speed Automatic

Transmission Model 4 0L:

Transmission Model 4 7L:

45RFE / 545RFE

Optional

Optional Transmission:

None (Automatic only for WJ generation)

Features

Transfer Case Options:

Quadra-Trac II (NV247), Selec-Trac (NV242 for some early models/trims)

Transmission Fluid Type:

ATF+4 (MS-9602)

Transmission Fluid Capacity 42Re:

8.4 US quarts (7.9 Liters)

Transmission Fluid Capacity 45Rfe 545Rfe:

9.7 US quarts (9.2 Liters)

📐 Dimensions

Exterior

Wheelbase:

116.0 inches (2946 mm)

Length:

184.6 inches (4689 mm)

Width:

73.0 inches (1854 mm)

Height:

67.0 inches (1702 mm)

Ground Clearance:

8.7 inches (221 mm) (typical)

Approach Angle:

38.1 degrees (approx.)

Departure Angle:

28.8 degrees (approx.)

Breakover Angle:

21.3 degrees (approx.)

Weights

Curb Weight 4 0L:

4350 lbs (1973 kg) (approx.)

Curb Weight 4 7L:

4500 lbs (2041 kg) (approx.)

Gross Vehicle Weight Rating Gvwr:

5700-6000 lbs (2585-2722 kg) (varies by configuration)

Towing Capacity:

Up to 6,500 lbs (2948 kg) with factory tow package

Payload Capacity:

Approx. 1300-1500 lbs (590-680 kg)

Wheel Bolt Pattern:

5 x 114.3 mm (5 x 4.5 in)

Wheel Size:

16-inch, 17-inch, 18-inch (depending on trim and options)

Tire Sizes:

P225/75R16, P235/65R17, P245/65R17, P255/55R18 (common)

🛡️ Safety Features

Ratings

NHTSA Front Crash Test:

4 stars (driver), 4 stars (passenger) for 2001-2004 models

NHTSA Side Impact Front:

4 stars (driver), 5 stars (passenger) for 2001-2004 models

NHTSA Rollover Rating:

3 stars (20% chance of rollover)

Active Features

Antilock Brakes ABS:

Standard on all models

Traction Control:

Available (some models/trims)

Electronic Stability Control Esc:

Available on later models (often tied to 4.7L V8)

Passive Features

Airbags Front:

Driver and front passenger airbags

Airbags Side Curtain:

Available on some higher trims

Seatbelts:

3-point front and rear seatbelts

Child Seat Anchors:

LATCH system

💡 Technology Features

Infotainment

Audio Systems:

Factory AM/FM/CD, optional Infinity Gold audio system, Cassette player on some models

Navigation:

Optional factory navigation system available on higher trims

Driver Assistance

Cruise Control:

Standard

Parking Sensors:

Not commonly equipped, rare option

Connectivity

Remote Keyless Entry:

Available on most trims

Power Accessories:

Power windows, power door locks, power seats (driver and passenger on higher trims)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 5,000 miles (8,000 km) or 6 months, whichever comes first

Air Filter Replacement:

Every 15,000 miles (24,000 km) or 12 months

Transmission Fluid Change:

Every 30,000 miles (48,000 km) or 24 months

Coolant Flush Interval:

Every 30,000 miles (48,000 km) or 24 months

Spark Plug Replacement 4 0L:

Every 100,000 miles (160,000 km) with platinum plugs

Spark Plug Replacement 4 7L:

Every 100,000 miles (160,000 km) with platinum plugs

Fluid Specifications

Engine Oil Spec 4 0L:

SAE 10W-30 API SJ (or higher) - 5.0 US quarts (4.7 Liters) with filter

Engine Oil Spec 4 7L:

SAE 5W-30 API SJ (or higher) - 6.0 US quarts (5.7 Liters) with filter

Coolant Type:

Mopar OAT (Organic Additive Technology) or equivalent, 50/50 mix with distilled water

Brake Fluid Type:

DOT 3

Power Steering Fluid Type:

Mopar Power Steering Fluid or equivalent (Dexron III ATF can be used as a substitute if necessary, but Mopar specific is preferred)

Known Issues

Common Issues Wj:

Cracked cylinder heads (4.7L V8), PCM failure, Transfer case chain stretch, Wabco ABS module failure, Power steering pump leaks, Minor electrical gremlins

Routine Checks:

Regularly check coolant levels, power steering fluid, and transmission fluid condition and level.

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Jeep's long history of ruggedness and off-road capability

Model Evolution

Wj Generation Introduction:

Introduced for the 1999 model year, with significant updates for the 2001 model year covering the range of this manual.

Gj Differences:

The WJ generation moved Grand Cherokee upmarket from the ZJ, featuring a more refined interior and updated powertrains.

2001 Updates:

Major powertrain updates, including the introduction of the 4.7L HO engine (though not in this exact model range) and improved 4.7L standard, along with revised interior and exterior styling cues.

Production

Production Plant:

Jefferson North Assembly Plant, Detroit, Michigan, USA

Production Years Wj:

1999-2004

🏆 Awards & Recognition

Recognitions

Off Road Awards:

Consistently recognized for off-road capability by publications like Four Wheeler magazine during its era.

Segment Awards:

Often praised for blending luxury and off-road prowess in the SUV market.

Ratings

Consumer Reports Ratings:

Mixed to good depending on model year and specific issues; known for some reliability concerns in later years of the WJ generation.