🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Year:

2004

Generation:

WJ

Platform Code:

WJ

👋 Introduction

Segment:

Mid-size Luxury SUV

Key Competitors:

Ford Explorer, Toyota 4Runner, Chevrolet Blazer, Nissan Pathfinder

Vehicle Strengths:

Off-road capability (Selec-Trac, Quadra-Trac II), comfortable ride, spacious interior, available V8 engine

📋 Manual Details

Coverage Scope:

Comprehensive service, repair, and maintenance

Estimated Page Count:

1500+

Type:

Full Service & Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine Mechanical:

Complete overhaul, component testing, and diagnosis for all gasoline engines

Engine Electrical:

Ignition system, fuel injection system (MPI), emissions control, starting and charging system, sensors and actuators

Transmission:

42RE (4-speed Automatic), NV3500 (5-speed Manual) - Overhaul, diagnosis, fluid service, torque converter

Drivetrain:

Quadra-Trac II (4WD), Selec-Trac (4WD), Command-Trac (4WD) - Transfer case operation, differentials, axle bearings, driveshafts, U-joints

Suspension:

Front: Solid beam axle with locating arms, coil springs, sway bar. Rear: Solid beam axle with locating arms, coil springs, sway bar. Bushing replacement, alignment specifications, shock absorber/strut service.

Steering:

Power steering system, steering gear, tie rods, steering linkage, steering column, power steering fluid specifications

Brakes:

Front: Ventilated discs. Rear: Solid discs. ABS, proportioning valves, brake fluid specifications (DOT 3), caliper, rotor, pad service, bleeding procedures

Electrical System:

Wiring diagrams, fuse box locations, relay functions, lighting, power windows, power locks, interior electronics, body control module (BCM)

Body And Interior:

Body panels, doors, hood, tailgate, interior trim, seats, HVAC system, body sealants

HVAC:

Air conditioning system, heater core, blower motor, climate control unit, refrigerant type (R-134a)

Routine Maintenance:

Oil changes, filter replacements (oil, air, fuel, cabin), fluid checks and top-offs, tire rotation, spark plug replacement

Troubleshooting:

Diagnostic procedures for common and uncommon issues, fault code interpretation, symptom-based diagnostics

Component Repair:

Detailed step-by-step instructions for engine, transmission, drivetrain, suspension, steering, brakes, electrical components, and bodywork

Rebuild Procedures:

Complete engine rebuild, transmission overhaul, differential rebuild

Diagnostics:

OBD-II diagnostics, scanner usage, specific system testing, wiring harness testing

Depth:

Expert level, suitable for professional mechanics and advanced DIY enthusiasts

📊 Manual Specifications

Digital Format:

PDF

Readability:

High-resolution, clear text and diagrams

Binding:

N/A (Digital)

Paper Quality:

N/A (Digital)

⚙️ Engine Specifications

Engine 1:

4.0L (3956cc) Inline 6-Cylinder (MPI - Multi-Point Fuel Injection)

Engine 1 Code:

SOHC 12-valve, PowerTech (ID: 4.0L I6)

Engine 2:

4.7L (4701cc) V8 (MPI - Multi-Point Fuel Injection)

Engine 2 Code:

SOHC 16-valve, PowerTech (ID: 4.7L V8)

Engine 1 Horsepower:

195 hp @ 4600 rpm

Engine 1 Torque:

230 lb-ft @ 3000 rpm

Engine 2 Horsepower:

235 hp @ 4750 rpm

Engine 2 Torque:

325 lb-ft @ 3250 rpm

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline

Fuel Tank Capacity:

20.5 US gallons (77.6 Liters)

🔧 Transmission

Transmission Type Std:

42RE 4-Speed Automatic

Transmission Type Opt:

NV3500 5-Speed Manual (Less common, primarily with 4.0L I6)

Overdrive:

Yes (4th gear)

Transmission Fluid Spec Auto:

ATF+4 (MS-9602)

Transmission Fluid Spec Manual:

Mopar Manual Transmission Lubricant or equivalent (e.g., SAE 75W-90 GL-5)

📐 Dimensions

Length:

186.0 inches (4724 mm)

Width:

74.5 inches (1892 mm)

Height:

66.7 inches (1694 mm)

Wheelbase:

116.0 inches (2946 mm)

Passenger Volume:

102.2 cu. ft. (2894 L)

Cargo Volume Behind Rear Seat:

37.5 cu. ft. (1062 L)

Cargo Volume Max:

77.5 cu. ft. (2195 L)

Curb Weight Min:

4,427 lbs (2008 kg) (4.0L I6)

Curb Weight Max:

4,675 lbs (2121 kg) (4.7L V8)

Gross Vehicle Weight Rating Gvwr:

5,750 lbs (2608 kg)

Towing Capacity:

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

🛡️ Safety Features

NHTSA Driver Front Impact:

4/5 Stars (2004 Model Year)

NHTSA Passenger Front Impact:

4/5 Stars (2004 Model Year)

ABS:

Standard (4-wheel disc ABS)

Traction Control:

Optional

Airbags:

Driver and front passenger airbags, available front side-impact airbags

Seatbelts:

3-point seat belts with pretensioners

💡 Technology Features

Audio System:

Optional Infinity Gold premium sound system with CD player, cassette, and AM/FM radio

Navigation:

Optional factory navigation system (rare)

Cruise Control:

Standard

Parking Assist:

Optional rear parking assist sensors

Auxiliary Input:

Typically no standard auxiliary input or USB ports; aftermarket solutions are common

🔧 Maintenance

Oil Change Interval Gasoline:

Every 3,000 - 7,500 miles (10W-30/5W-30 synthetic blend, depending on driving conditions and oil type)

Transmission Fluid Service Interval Auto:

Every 30,000 - 60,000 miles (check manual for specific conditions)

Transfer Case Fluid Interval:

Every 30,000 - 60,000 miles

Coolant Flush Interval:

Every 30,000 - 60,000 miles or 2-5 years

Spark Plug Replacement 4.0L I6:

Approximately 100,000 miles (Champion copper plugs typically)

Spark Plug Replacement 4.7L V8:

Approximately 100,000 miles (Champion platinum or iridium plugs typically)

Engine Oil Type 4.0L I6:

SAE 10W-30 or 5W-30 (API SJ or higher)

Engine Oil Type 4.7L V8:

SAE 5W-30 (API SL or higher, synthetic recommended for best performance)

Coolant Type:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, or equivalent HOAT (Hybrid OAT) meeting MS-9769

Power Steering Fluid:

ATF+4 (MS-9602) or Mopar Power Steering Fluid

Common Issue Cooling System:

Water pump leaks, radiator issues, heater core leaks (especially common for the 4.7L V8)

Common Issue Engine 4.7L V8:

Valve guide wear, lifter tick, oil sludge buildup if maintenance is neglected

Common Issue Transmission:

Internal seal leaks, torque converter shudder in the 42RE automatic transmission

Common Issue Electrical:

Window regulators, central locking actuators, ignition switch failures

Common Issue Suspension:

Worn front suspension bushings, tie rod ends, and ball joints due to vehicle weight and off-road use

📚 Vehicle History

Jeep Legacy:

Jeep has a long-standing reputation for robust 4x4 capability and off-road prowess dating back to WWII.

Wj Generation Intro:

The WJ Grand Cherokee debuted for the 1999 model year, succeeding the ZJ. It introduced a more refined interior and improved on-road manners while retaining Jeep's core off-road strengths.

Wj Generation Updates:

Significant updates for the 2004 model year included revised exterior styling, improved interior materials, and an updated powertrain for the V8 (4.7L HO variant available in some markets/later production).

Production Years:

1999-2004

Manufacturing Locations:

Jefferson North Assembly Plant, Detroit, Michigan, USA

🏆 Awards & Recognition

Automotive Journal Awards:

The Grand Cherokee WJ line generally received positive reviews for its off-road capability and comfortable ride, often praised by off-road enthusiasts' publications.

Consumer Satisfaction Notes:

Owner satisfaction varied, with positive marks for capability and engine power, but some recurring complaints related to the cooling system and certain electrical components.