🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Year:

2004

Chassis Code:

WJ

Product Type:

Parts Catalog

👋 Introduction

Segment:

Mid-size Luxury SUV

Competitors:

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

Unique Selling Points:

Renowned Jeep off-road capability (Quadra-Trac II, Quadra-Drive II), comfortable ride, spacious interior, strong V8 engine options.

📋 Manual Details

Scope:

Comprehensive parts listing for all systems and components of the 2004 Jeep Grand Cherokee WJ.

Estimated Pages:

Extensive (typical for parts catalogs of this era, likely 1000+ pages depending on engine/options).

Type:

Factory Parts Catalog

Language:

English

Format:

PDF

📖 Manual Coverage

Engine:

All engine variants including 4.0L I6 and 4.7L V8; engine assembly, components, cooling, lubrication, fuel, ignition, emissions.

Transmission:

42RE (4-speed automatic), 45RFE/545RFE (4-speed automatic for 4.7L); transmission assembly, internal components, cooling, driveline.

Transfer Case:

NV242 (Selec-Trac), NV247 (Quadra-Trac II), NV245 (Quadra-Drive II); transfer case assembly and components.

Axles And Differentials:

Front and rear axles (Dana 30, Dana 44), differentials, hubs, axle shafts, seals, bearings.

Brakes:

Front and rear brake systems (disc brakes), calipers, rotors, pads, lines, master cylinder, ABS components.

Suspension:

Front and rear suspension components, control arms, ball joints, bushings, springs, shock absorbers/struts, sway bars.

Steering:

Steering gear, power steering pump, hoses, steering column, tie rods, drag links.

Wheels And Tires:

Wheel options, lug nuts, tires.

Electrical System:

Battery, alternator, starter, ignition system, wiring harnesses, sensors, modules, fuses, relays.

Lighting:

Headlights, taillights, interior lighting, fog lights, bulbs.

HVAC:

Heating, ventilation, and air conditioning system components, blower motor, evaporator, condenser, heater core, control modules.

Interior:

Seats, seat belts, dashboard, trim panels, door panels, carpets, headliner, interior hardware.

Exterior:

Body panels, doors, hoods, fenders, bumpers, grilles, moldings, glass, mirrors, roof rack, exterior trim.

Chassis And Frame:

Frame components, body mounts, exhaust system.

Fuel System:

Fuel tank, fuel pump, fuel lines, fuel injectors, fuel filter.

Cooling System:

Radiator, water pump, thermostat, hoses, fan, coolant reservoir.

Exhaust System:

Exhaust manifolds, catalytic converter, mufflers, pipes, hangers.

Infotainment And Audio:

Radio, speakers, antenna, navigation system (if equipped).

Safety And Security:

Airbags, seat belts, door locks, alarm system components.

Part Identification:

Detailed exploded views and diagrams of all vehicle components.

Part Number Lookup:

Official Mopar part numbers for every component, crucial for ordering and replacement.

Interchangeability:

Information on part interchangeability across different build dates or option packages.

Assembly Order:

Visual representation of how parts fit together, aiding in correct reassembly.

Depth:

Highly detailed, focusing on OEM part specifications, supersessions, and application data. Essential for parts sourcing and inventory management.

📊 Manual Specifications

File Type:

Portable Document Format (PDF)

Searchability:

Searchable text for efficient part number and component identification.

Printability:

Printable pages, allowing users to generate hard copies of specific sections.

Binding:

N/A (Digital Format)

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Engine 1:

4.0L Inline-6 'Power Tech' (MPI)

Engine 1 Displacement:

242 cubic inches (3952 cc)

Engine 1 Horsepower:

195 hp @ 4600 rpm

Engine 1 Torque:

230 lb-ft @ 3200 rpm

Engine 2:

4.7L V8 'High Output Power Tech' (MPI)

Engine 2 Displacement:

287 cubic inches (4701 cc)

Engine 2 Horsepower:

235 hp @ 4750 rpm (standard) / 255 hp @ 5200 rpm (High Output)

Engine 2 Torque:

295 lb-ft @ 3200 rpm (standard) / 325 lb-ft @ 3800 rpm (High Output)

Fuel Delivery:

Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline, 87 octane (regular)

Emission Control:

Catalytic Converter, Secondary Air Injection (model dependent).

🔧 Transmission

Transmission Type Standard:

42RE 4-Speed Automatic (with 4.0L I6)

Transmission Type Optional:

45RFE/545RFE 4-Speed Automatic (with 4.7L V8)

Overdrive:

All automatic transmissions feature overdrive (4th gear).

Transfer Case Options:

NV242 (Selec-Trac), NV247 (Quadra-Trac II), NV245 (Quadra-Drive II).

📐 Dimensions

Length:

181.5 inches (4610 mm)

Width:

73.5 inches (1867 mm)

Height:

66.7 inches (1694 mm)

Wheelbase:

109.5 inches (2781 mm)

Ground Clearance:

8.7 inches (221 mm) (typical)

Cargo Volume Behind Rear Seat:

32.3 cubic feet (915 liters)

Cargo Volume With Rear Seat Folded:

72.3 cubic feet (2047 liters)

Curb Weight Min:

4,052 lbs (1838 kg) (4.0L)

Curb Weight Max:

4,555 lbs (2066 kg) (4.7L HO)

Towing Capacity:

Up to 5,000 lbs (2268 kg) (with proper equipment)

Wheel Bolt Pattern:

5 x 114.3 mm (5 x 4.5 inches)

Wheel Size Standard:

16-inch

Tire Size Standard:

P235/70R16

🛡️ Safety Features

NHTSA Frontal Driver:

★★★★☆ (4 Stars)

NHTSA Frontal Passenger:

★★★★☆ (4 Stars)

IIHS Frontal Offset:

Good

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional Traction Control (part of Electronic Stability Program on later models)

Esc:

Optional Electronic Stability Program (ESP) available on some trims/configurations.

Airbags:

Standard front airbags; optional side curtain airbags.

Seat Belts:

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

💡 Technology Features

Audio System:

Optional premium Infinity sound system with amplifier and subwoofer.

Navigation:

Optional factory navigation system available on higher trims.

Cruise Control:

Standard on most models.

Parking Sensors:

Optional rear parking assist sensors available.

Remote Keyless Entry:

Standard or optional depending on trim level.

🔧 Maintenance

Oil Change Interval:

Every 3,000 miles (severe duty) or 7,500 miles (normal duty) with synthetic blend oil.

Air Filter Replacement:

Every 15,000-30,000 miles, or as needed based on inspection.

Spark Plug Replacement:

4.0L I6: 100,000 miles; 4.7L V8: 100,000 miles (Champion copper-core plugs).

Transmission Fluid Change:

Every 30,000-50,000 miles, or as recommended by severity of use.

Coolant Flush Interval:

Every 30,000 miles or 3 years.

Engine Oil Spec:

SAE 5W-30 (API-certified)

Engine Oil Capacity:

4.0L: 5 quarts (4.7L); 4.7L V8: 6 quarts (5.7L)

Transmission Fluid Type:

ATF+4 (Chrysler Material Standard MS-9602)

Coolant Type:

Mopar OAT (Organic Additive Technology) 50/50 mix (Chrysler Material Standard MS-9769)

Brake Fluid Type:

DOT 3

Power Steering Fluid:

ATF+4 or equivalent

Common Problems Engine:

Cracked cylinder heads on early 4.7L V8 models, intake manifold gasket leaks (4.0L), oil filter adapter housing leaks.

Common Problems Transmission:

Transmission fluid leaks, torque converter issues, overdrive band wear.

Common Problems Suspension Steering:

Worn control arm bushings, ball joints, steering stabilizer, death wobble (severe cases).

Common Problems Electrical:

Window regulator failures, HVAC blower motor resistor failure, ABS sensor failures, PCM (Powertrain Control Module) issues.

Common Problems Body:

Rust on rear quarter panels, tailgate, and rocker panels, especially in areas with road salt.

📚 Vehicle History

Jeep Legacy:

Jeep has a long-standing reputation for robust off-road capability and durable utility vehicles since its World War II origins.

Wj Generation Introduction:

The WJ Grand Cherokee was introduced for the 1999 model year, representing a significant redesign with a more car-like unibody construction and increased interior refinement compared to its predecessor (ZJ).

2004 Model Year Updates:

The 2004 model year represented the final year of the WJ generation. Updates included the availability of the higher-output 4.7L V8 engine and refinements to the Quadra-Drive II system. Minor styling tweaks were also present.

Production Location:

Jefferson North Assembly Plant, Detroit, Michigan, USA.

Production Years Wj:

1999-2004

🏆 Awards & Recognition

Automotive Press Awards:

The Grand Cherokee WJ often received praise for its refined interior, capable powertrains, and its ability to balance on-road comfort with off-road prowess, earning accolades from automotive publications during its run.