Jeep Grand CHEROKEE WJ Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation Generation Code: WJ Codes Vehicle Platform: Z-body 👋 Introduction Market Position Vehicle Class: Mid-size Luxury/Performance SUV Brand Perception: Jeep's flagship...

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UGS: 280102

Mots clés: Car Cars Grand Cherokee WJ Jeep Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Grand Cherokee

Generation

Generation Code:

Codes

Vehicle Platform:

Z-body

👋 Introduction

Market Position

Vehicle Class:

Mid-size Luxury/Performance SUV

Brand Perception:

Jeep's flagship SUV, emphasizing off-road capability and luxury for its era.

Competitive Analysis

Key Competitors:

Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, Land Rover Discovery, Lexus RX

Key Features

Standout Attributes:

Robust platform, powerful engine options, significant towing capacity, available Quadra-Drive II system.

Manual Value Proposition:

Provides professional-level repair and maintenance knowledge, crucial for keeping this capable SUV in optimal condition.

📋 Manual Details

Coverage Areas

Manual Type:

Service and Repair Workshop Manual

Language:

English

Format:

Likely Digital (PDF) - implied by online sale and 'no missing pages' claim

Page Count Estimate:

Comprehensive, typically 1000+ pages for this era of vehicle.

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Detailed diagnostics, repair, overhaul for all WJ Grand Cherokee engines (4.0L I6, 4.7L V8).

Engine Electrical:

Ignition system, fuel injection, sensors, actuators, ECU diagnostics, wiring diagrams.

Transmission Automatic:

Service, repair, overhaul of 42RE, 45RFE, 545RFE transmissions.

Transmission Manual:

Service and repair of NV3550 manual transmission (if equipped).

Drivetrain And Axles:

Front and rear axle service, differentials, NP231J, NP242J transfer cases.

Suspension:

Front and rear suspension systems, shocks, springs, control arms, steering linkage.

Brakes:

Front and rear brake systems (disc), ABS, parking brake.

Steering:

Power steering system, steering column, steering gear.

Cooling System:

Radiator, water pump, thermostat, cooling fan, HVAC integration.

Fuel System:

Fuel tank, pump, lines, injectors, evaporative emissions (EVAP).

Exhaust System:

Catalytic converter, mufflers, pipes, exhaust manifold.

Electrical System:

Battery, charging system, starting system, lighting, power accessories.

Body And Frame:

Body panel removal, interior trim, glass, seals, frame integrity checks.

HVAC:

Heating, Ventilation, and Air Conditioning system service and diagnostics.

Safety Systems:

Airbag system service, seat belts.

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, fluid checks and changes, tire rotations.

Troubleshooting Diagnostics:

Systematic fault diagnosis for all major vehicle components.

Component Repair Overhaul:

Step-by-step repair procedures for engines, transmissions, axles, etc.

Component Replacement:

Detailed instructions for replacing common wear items and major assemblies.

Torque Specifications:

Precise torque values for all critical fasteners.

Wiring Diagrams:

Comprehensive electrical schematics for all vehicle systems.

Special Tools:

Identification and usage instructions for any required specialized tools.

Technical Depth

Depth Level:

Expert Level - Covers everything from basic maintenance to full engine and transmission rebuilds.

Diagnostic Capabilities:

Advanced diagnostic procedures, including pinpoint tests and scan tool data interpretation.

Rebuild Instructions:

Detailed instructions for disassembling, inspecting, and reassembling major components.

📊 Manual Specifications

File Format

File Type:

Assumed PDF; High Resolution, Searchable Text, Printable

Print Quality

Image Clarity:

High clarity for diagrams, illustrations, and photos.

Binding Type

Binding Method:

N/A (Digital Format)

Paper Type

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Option 1:

4.0L Inline-6 (242 ci) OHV Power Tech

Engine Option 1 Power:

Approx. 190-205 hp @ 4400-4750 rpm

Engine Option 1 Torque:

Approx. 235-255 lb-ft @ 3000-3200 rpm

Engine Option 2:

4.7L V8 (285 ci) Magnum SOHC

Engine Option 2 Power:

Approx. 220-260 hp @ 4700-5000 rpm

Engine Option 2 Torque:

Approx. 280-330 lb-ft @ 3200-3500 rpm

Performance

Bore Stroke 4 0L:

3.88 in x 3.41 in

Bore Stroke 4 7L:

3.70 in x 3.27 in

Fuel System

Fuel Delivery 4 0L:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Delivery 4 7L:

Sequential Multi-Port Fuel Injection (MPI)

Recommended Fuel:

87 Octane Regular Unleaded (premium recommended for optimal performance with 4.7L)

🔧 Transmission

Standard

Automatic Transmission:

42RE (4-speed automatic with overdrive) for 4.0L; 45RFE/545RFE (4-speed automatic with overdrive) for 4.7L.

Optional

Manual Transmission:

NV3550 (5-speed manual) - Optional on some 4.0L models.

Features

Overdrive Gears:

All automatics feature overdrive (4th gear).

Transfer Cases:

Selec-Trac (NV242J), Quadra-Trac II (NV247), Quadra-Drive II (NV247 with Tru-Lok differentials).

Transmission Fluid Spec 42Re:

ATF+4 (MS-9602)

Transmission Fluid Spec 45Rfe 545Rfe:

ATF+4 (MS-9602)

📐 Dimensions

Exterior

Wheelbase:

116.0 inches (2946 mm)

Length:

186.7 inches (4742 mm)

Width:

74.8 inches (1900 mm)

Height:

67.5 inches (1715 mm)

Ground Clearance:

Varies by model/suspension, typically 8.4-8.7 inches (213-221 mm)

Weights

Curb Weight:

4,400 - 4,900 lbs (2000 - 2220 kg) depending on configuration

Gross Vehicle Weight Rating Gvwr:

5,800 - 6,400 lbs (2630 - 2903 kg)

Towing Capacity:

Up to 7,500 lbs (3400 kg) with proper equipment

🛡️ Safety Features

Ratings

NHTSA Rollover Resistance:

3-Star (as per 2001 model year testing)

IIHS Offset Frontal Impact:

'Acceptable' to 'Good' depending on specific model year and equipment.

Active Features

Traction Control:

Available, often linked to ABS system.

Antilock Brakes ABS:

Standard on most models, 4-wheel disc ABS.

Passive Features

Airbags:

Driver and front passenger airbags.

Seatbelts:

Three-point seatbelts with pretensioners.

💡 Technology Features

Infotainment

Audio Systems:

Optional premium sound systems (Infinity), CD player, cassette player (early models).

Navigation:

Optional factory GPS navigation system available on higher trims.

Driver Assistance

Cruise Control:

Standard.

Parking Assistance:

Rear parking assist sensors available on some models.

Connectivity

Power Accessories:

Power windows, power locks, power mirrors, power seats (depending on trim).

Remote Keyless Entry:

Available.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-7,500 miles (5,000-12,000 km) or 6-12 months, depending on oil type and driving conditions (refer to manual for specifics).

Transmission Fluid Change Interval:

Every 30,000-60,000 miles (50,000-100,000 km), depending on usage.

Coolant Change Interval:

Every 30,000-100,000 miles (50,000-160,000 km), depending on coolant type (typically longer life for modern coolants).

Fluid Specifications

Engine Oil 4 0L:

API SN/SP, SAE 5W-30 (check owner's manual for current recommendations)

Engine Oil 4 7L:

API SN/SP, SAE 5W-30 or 5W-20 (check owner's manual for current recommendations)

Engine Coolant:

Mopar HOAT (Hybrid Organic Acid Technology) coolant or equivalent (e.g., Pentofrost G12/G12+).

Brake Fluid:

DOT 3 or DOT 4 brake fluid.

Known Issues

Common Problems:

Cracked cylinder heads (4.7L early models), death wobble (suspension/steering linkage wear), power steering pump issues, HVAC blower motor resistor failure, automatic transmission solenoid issues.

Maintenance Recommendations For Issues:

Regular inspection of steering and suspension components, proactive replacement of known weak points, proper fluid maintenance.

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Jeep has a storied history dating back to World War II, known for robust off-road vehicles.

Model Evolution

Previous Generation:

Jeep Grand Cherokee ZJ (1993-1998)

Next Generation:

Jeep Grand Cherokee WK (2005-2010)

Production

Model Years Covered:

1999-2004 (WJ Generation)

Manufacturing Location:

Detroit, Michigan, USA; Brampton, Ontario, Canada

🏆 Awards & Recognition

Recognitions

Off Road Accolades:

Jeep Grand Cherokee consistently recognized for its off-road prowess, earning accolades from off-road publications.

Towing Awards:

Often cited for its strong towing capabilities within its class.

Ratings

Consumer Reports Ratings:

Ratings varied by model year, with some years receiving above-average marks for powertrain and off-road capability, while others noted issues with reliability.