Jeep Grand CHEROKEE WJ Factory Service Repair Manual 2004

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🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation Code: WJ Model Year: 2004 👋 Introduction Market Position Vehicle Segment: Mid-size Luxury SUV Target Audience: Families, off-road enthusiasts, those...

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Description

🏷️ Basic Information

Identification

Make:

Model:

Grand Cherokee

Generation Code:

Model Year:

👋 Introduction

Market Position

Vehicle Segment:

Mid-size Luxury SUV

Target Audience:

Families, off-road enthusiasts, those seeking comfortable highway cruising

Competitive Analysis

Key Competitors:

Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, Lexus RX, BMW X5

Key Features

Powertrain Options:

Renowned Jeep capability with available powerful engines and robust 4WD systems

Interior Comfort:

Spacious interior with available premium materials and amenities

Off Road Capability:

Class-leading off-road prowess thanks to Quadra-Drive II system and solid axle rear suspension

📋 Manual Details

Coverage Areas

Manual Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

Likely Digital (PDF) or Printed, as implied by the description

Completeness:

Comprehensive, covering deep information on maintenance, assembly, disassembly, and servicing

📖 Manual Coverage

Systems Covered

Engine Overhaul:

Detailed procedures for engine assembly, disassembly, component replacement, and tuning

Powertrain:

Includes transmission (NV3500 manual, 45RFE/545RFE automatic), transfer case (NV242, NV247, NV249), and differentials

Suspension Steering:

Front and rear suspension components, steering system, alignment specifications, and troubleshooting

Brakes:

Brake system inspection, repair, ABS components, bleeding procedures, and specifications

Electrical System:

Wiring diagrams, component locations, diagnostic procedures for electrical systems, including ECUs and sensors

Body And Frame:

Body panel repair, door mechanisms, interior trim removal, glass replacement, and structural components

Heating Ventilation Air Conditioning HVAC:

HVAC system diagnosis, refrigerant handling, component replacement, and troubleshooting

Chassis Systems:

Includes frame, axles, driveshafts, and universal joints

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection

Diagnostic Troubleshooting:

Step-by-step diagnostic procedures for various systems, including symptom-based troubleshooting trees

Component Rebuilds:

Detailed instructions for overhauling engines, transmissions, and differentials

Alignment Procedures:

Front and rear wheel alignment specifications and adjustment procedures

Brake Bleeding:

Correct procedures for bleeding the brake system, including ABS-equipped vehicles

Electrical Component Replacement:

Instructions for replacing starters, alternators, sensors, ECUs, and other electrical parts

Body Panel Repair:

Procedures for removing, installing, and repairing body panels and associated hardware

Technical Depth

Depth Level:

Expert/Professional Grade: Suitable for certified technicians and advanced DIY mechanics

Diagnostics Coverage:

Includes detailed diagnostic trouble codes (DTCs), circuit descriptions, and testing procedures

Torque Specifications:

Extensive listing of torque specifications for all critical fasteners and components

Schematics Included:

Comprehensive electrical schematics and vacuum diagrams

📊 Manual Specifications

File Format

File Type:

Likely PDF (searchable, printable)

Print Quality

Resolution:

High resolution, ensuring clarity of diagrams and text

Binding Type

Binding:

N/A (if digital) or Professional Binding (if printed)

Paper Type

Paper Quality:

N/A (if digital) or Durable, high-quality paper stock (if printed)

⚙️ Engine Specifications

Primary Engine

Engine Code 1:

4.0L Inline-6 (AMC 242)

Displacement 1:

3956 cc (242 cubic inches)

Horsepower 1:

190 hp @ 4600 rpm

Torque 1:

235 lb-ft @ 3200 rpm

Fuel System 1:

Multi-Point Fuel Injection (MPI)

Engine Code 2:

4.7L V8 (PowerTech)

Displacement 2:

4701 cc (287 cubic inches)

Horsepower 2:

235 hp @ 4750 rpm (updated to 260 hp @ 5200 rpm for 2003-2004 model years)

Torque 2:

295 lb-ft @ 3250 rpm (updated to 325 lb-ft @ 3800 rpm for 2003-2004 model years)

Fuel System 2:

Multi-Point Fuel Injection (MPI)

Performance

0 60 Mph Estimate 4.0L:

Approx. 9.5 - 10.5 seconds

0 60 Mph Estimate 4.7L:

Approx. 8.0 - 9.0 seconds

Fuel System

Recommended Fuel Octane 4.0L:

87 Octane (Regular Unleaded)

Recommended Fuel Octane 4.7L:

89 Octane (Mid-Grade Unleaded) recommended for optimal performance, 87 acceptable

🔧 Transmission

Standard

Transmission Type 4.0L:

4-speed Automatic (42RE)

Optional

Transmission Type 4.7L:

5-speed Automatic (545RFE)

Manual Transmission Availability:

Rare; NV3500 5-speed manual transmission available on some base models with the 4.0L engine in earlier WJ years, less common for 2004

Features

Transfer Case Options:

NV231 (Part-Time Command-Trac), NV242 (Full-Time Selec-Trac), NV247 (Full-Time Quadra-Trac II), NV247HD (Quadra-Drive II)

Transmission Fluid Spec 42Re:

ATF+4 (MS-9602)

Transmission Fluid Spec 545Rfe:

ATF+4 (MS-9602)

📐 Dimensions

Exterior

Wheelbase:

116.0 inches (2946 mm)

Length:

189.8 inches (4821 mm)

Width:

74.7 inches (1897 mm)

Height:

67.4 inches (1712 mm)

Ground Clearance Standard:

Approx. 8.0 inches (203 mm)

Ground Clearance Off Road Package:

Approx. 8.7 inches (221 mm)

Weights

Curb Weight 4.0L:

Approx. 4,500 - 4,800 lbs (2041 - 2177 kg)

Curb Weight 4.7L:

Approx. 4,700 - 5,000 lbs (2132 - 2268 kg)

Towing Capacity Max:

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

Payload Capacity:

Approx. 900 - 1100 lbs (408 - 499 kg)

🛡️ Safety Features

Ratings

NHTSA Frontal Crash Test Driver:

NHTSA Frontal Crash Test Passenger:

NHTSA Side Impact Crash Test Front Seat:

Acceptable (may vary by configuration)

Active Features

Standard on all models

Traction Control:

Optional on some models, part of 4WD systems

Electronic Stability Control Esc:

Not widely available on 2004 WJ, introduced later in Jeep models

Passive Features

Airbags Front:

Standard driver and front passenger airbags

Airbags Side:

Optional front side-impact airbags on some higher trims

Seatbelts:

3-point seat belts with pretensioners

💡 Technology Features

Infotainment

Audio System Options:

Base AM/FM/CD, optional premium Infinity sound system with subwoofer, optional CD changer

Navigation System:

Optional factory navigation system available on higher trims

Climate Control:

Manual HVAC or optional dual-zone automatic climate control

Driver Assistance

Cruise Control:

Standard

Parking Sensors:

Optional rear parking assist system

Connectivity

Auxiliary Input:

Not standard; aftermarket solutions common

Bluetooth:

Not available from factory

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 5,000 to 7,500 miles or 6 months, whichever comes first (refer to manual for specific conditions)

Engine Air Filter Replacement:

Every 15,000 to 30,000 miles (depending on driving conditions)

Spark Plug Replacement 4.0L:

Every 100,000 miles (if original copper plugs), consult manual for exact type/interval

Spark Plug Replacement 4.7L:

Every 100,000 miles (if original platinum plugs), consult manual for exact type/interval

Transmission Fluid Change Interval:

Every 30,000 to 60,000 miles (crucial for longevity, especially under towing/heavy use)

Coolant Flush Interval:

Every 30,000 to 50,000 miles or 2-3 years

Fluid Specifications

Engine Oil Type 4.0L:

API SJ or higher, SAE 10W-30 (check specific climate recommendations)

Engine Oil Type 4.7L:

API SJ or higher, SAE 5W-30 (check specific climate recommendations)

Coolant Type:

Chrysler HOAT (Hybrid Organic Acid Technology) approved coolant (e.g., Mopar OAT or equivalent)

Brake Fluid Type:

DOT 3

Power Steering Fluid Type:

ATF+4 (MS-9602) or CHRYSLER power steering fluid

Known Issues

Common Issue Cooling System:

Leaking radiator, water pump failures, heater core issues are common; regular flushing is key

Common Issue Front Driveshaft Symptoms:

Vibration, particularly at higher speeds, often due to worn U-joints or balance issues

Common Issue Oil Leaks:

Valve cover gaskets, oil pan gaskets, and crankshaft seals can develop leaks over time

Common Issue Transfer Case Clunk:

Characteristic 'clunk' on acceleration/deceleration due to wear in the transfer case viscous coupling unit (especially in Quadra-Trac II/Quadra-Drive)

Common Issue Ignition Coils 4.7L:

Individual ignition coil failures can lead to misfires

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Iconic brand known for off-road capability and ruggedness since WWII

Model Evolution

Wj Generation Introduction:

Introduced for the 1999 model year, representing a significant refinement over the ZJ generation

Wj Generation Updates 2004:

Minor updates for 2004, including slight powertrain refinements and feature availability changes, it was the final year for the WJ generation

Platform Shared With:

Shared platform with Mercedes-Benz M-Class (W163) during DaimlerChrysler alliance

Production

Manufacturing Location:

Jefferson North Assembly Plant, Detroit, Michigan, USA

Production Years Wj:

1999-2004

🏆 Awards & Recognition

Recognitions

Kbb Best Resale Value:

While specific year awards might vary, Grand Cherokee has historically been recognized for strong resale value in its segment.

Off Road Magazine Awards:

Jeep vehicles, including Grand Cherokee, frequently receive accolades for off-road capability from specialized publications.

Ratings

Jd Power Dependability:

Varies by model year and specific issues, but often ranks competitively in the SUV segment.