🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Year:

2004

Chassis Code:

WJ

Market Segment:

Mid-size Luxury SUV

👋 Introduction

Positioning:

The 2004 Grand Cherokee WJ represented Jeep's flagship luxury SUV, competing with models from Lincoln, Cadillac, Lexus, and BMW. It emphasized capability and refinement.

Competitors:

Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery.

Features Of Model:

Available with iconic Jeep off-road capability, luxurious interior appointments, and robust powertrain options. Offered features like Quadra-Drive II, premium audio, leather upholstery.

Value:

Provides essential information for maintaining and repairing the vehicle, saving significant costs compared to dealership service. Empowers owners and independent shops with expert knowledge.

📋 Manual Details

General Coverage:

Comprehensive service, repair, and diagnostic procedures for the Jeep Grand Cherokee WJ (2004 model year).

Estimated Pages:

1500+

Type:

Workshop Service Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine:

Engine mechanical, cooling, lubrication, fuel injection, ignition, emission controls, and engine management systems.

Transmission:

Automatic transmission (42RE, 45RFE/545RFE), manual transmission (NV3500), transfer case (NV231D-HD, NV242, NV247, NV247-0J) service, overhaul, and diagnostics.

Drivetrain:

Front and rear axle assemblies, driveshafts, U-joints, CV joints, differentials.

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, steering knuckles, stabilizer bars.

Steering:

Power steering system, steering gear, steering column, tie rods, linkages.

Brakes:

Front and rear brake systems (disc/disc), ABS, parking brake, brake fluid, hydraulic components.

Electrical:

Battery, charging system, starting system, lighting, instrumentation, power accessories, wiring diagrams, diagnostic connectors (OBD-II).

HVAC:

Heating, ventilation, and air conditioning (HVAC) system service and repair.

Body:

Body panels, doors, windows, mirrors, interior trim, bumpers, liftgate, roof rack, exterior trim.

Chassis:

Frame, subframes, exhaust system, fuel tank, fuel lines.

Maintenance:

Routine maintenance, oil changes, filter replacements, fluid checks and changes, lubrication, belt inspection and replacement.

Diagnostics:

Troubleshooting guides, diagnostic trouble codes (DTCs), symptom-based diagnostics, electronic diagnostics.

Repair:

Step-by-step repair instructions for all major components and systems, including component removal and installation, overhaul procedures.

Disassembly Assembly:

Detailed procedures for disassembly and reassembly of engines, transmissions, axles, and other major components.

Adjustments:

Component adjustments, wheel alignment specifications, brake adjustments.

Specifications:

Torque specifications for fasteners, fluid capacities, electrical specifications, engine and transmission tolerances.

Depth:

Full workshop-level detail, suitable for professional mechanics and advanced DIY enthusiasts. Covers everything from basic maintenance to complex rebuilds and diagnostics.

📊 Manual Specifications

Searchability:

Fully searchable text within the PDF document.

Resolution:

High-resolution images and diagrams for clarity.

Binding:

N/A (Digital PDF)

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Engine Options:

4.0L 'PowerTech' I6 (AMC 242), 4.7L 'PowerTech' V8 (e.g., P02, P04 variations).

4.0L I6 Hp:

190 hp @ 4600 rpm

4.0L I6 Torque:

235 lb-ft @ 3000 rpm

4.7L V8 Hp:

235 hp @ 4750 rpm (early versions), 260 hp @ 5200 rpm (later versions)

4.7L V8 Torque:

295 lb-ft @ 3200 rpm (early versions), 325 lb-ft @ 3800 rpm (later versions)

Fuel Injection:

Sequential Multi-Port Fuel Injection (MPI).

Ignition Type:

Distributorless Ignition System (DIS) with coil-on-plug for 4.7L V8; Distributor ignition for 4.0L I6.

Emission Controls:

Catalytic converters, EGR system, evaporative emission control (EVAP).

🔧 Transmission

Standard Auto:

45RFE/545RFE 4-speed automatic (common)

Optional Auto:

42RE 4-speed automatic (less common)

Optional Manual:

NV3500 5-speed manual (rare)

Transmission Fluid Type:

ATF+4 (MS-9602)

Transfer Case Types:

NV231D-HD (Command-Trac), NV242 (Selec-Trac), NV247 (Quadra-Trac II), NV247-0J (Quadra-Drive II).

📐 Dimensions

Wheelbase:

116.0 inches (2946 mm)

Length:

184.6 inches (4690 mm)

Width:

73.1 inches (1857 mm)

Height:

66.7 inches (1694 mm)

Curb Weight Approx:

4,300 - 4,800 lbs (1950 - 2177 kg), varies by engine and equipment

Cargo Volume Behind Rear Seat:

37.7 cubic feet (1.07 cubic meters)

Cargo Volume Max:

75.5 cubic feet (2.14 cubic meters)

🛡️ Safety Features

NHTSA Rollover Resistance:

3 stars (likely, based on era and vehicle type)

ABS:

Standard Anti-lock Braking System (ABS).

Traction Control:

Available Traction Control (TCS) and Electronic Stability Program (ESP).

Airbags:

Front airbags, available side-impact airbags.

Seatbelts:

3-point front and rear seat belts, pretensioners for front seats.

💡 Technology Features

Infotainment Systems:

Factory AM/FM/CD players, optional Infinity Gold premium audio system, optional navigation system (rare).

Driver Assistance Features:

Anti-lock Braking System (ABS), Traction Control (TCS), Electronic Stability Program (ESP) available on some trims.

Connectivity Options:

No integrated Bluetooth or advanced smartphone connectivity. OBD-II port for diagnostic scanning.

Comfort Features Available:

Power seats, heated seats, dual-zone climate control, power moonroof, universal garage door opener.

🔧 Maintenance

Oil Change Interval:

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

Transmission Fluid Change:

Every 30,000-60,000 miles (50,000-100,000 km), or more frequently under severe use.

Coolant Change:

Every 30,000-100,000 miles (50,000-160,000 km), depending on coolant type (e.g., HOAT).

Engine Oil 4.0L:

SAE 10W-30 or 5W-30 (depending on temperature), API Service SN or newer.

Engine Oil 4.7L:

SAE 5W-30, API Service SN or newer.

Coolant Type:

Chrysler HOAT (Hybrid Organic Acid Technology) coolant, typically orange or pink.

Brake Fluid:

DOT 3.

Common Problems:

Heater core leaks, radiator failure, intake manifold gasket leaks (on V8), ignition coil issues, transfer case chain stretch/wear, rear main seal leaks, HVAC blower motor issues, death wobble (suspension/steering related).

Oil Filter 4.0L:

Examples: Mopar MO-090, Fram PH8A, Wix 51515

Oil Filter 4.7L:

Examples: Mopar MO-899, Fram PH10157, Wix 57915

📚 Vehicle History

Jeep Heritage:

Jeep has a storied history dating back to WWII, known for its ruggedness and off-road capability, transitioning to civilian SUVs with a focus on family utility and luxury in later years.

Wj Generation Debut:

The WJ generation debuted for the 1999 model year, replacing the ZJ. It featured a more modern design, improved interior comfort, and advanced features.

Wj Generation Facelift:

Received a significant refresh for the 2001 model year, including updated styling, improved interior materials, and revised powertrain options, leading into the 2004 model.

Production Location:

Jefferson North Assembly Plant, Detroit, Michigan, USA.

Wj Production Years:

1999-2004.

🏆 Awards & Recognition

Notable Recognitions:

The Grand Cherokee WJ generally received positive reviews for its capability and comfort, though often criticized for its fuel economy and some reliability concerns compared to Japanese competitors.

Consumer Reports Ratings:

Variable, with some model years and components receiving lower reliability ratings due to common issues like the aforementioned heater core and cooling system problems.