🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation:

WJ

Model Years Covered:

2001, 2002, 2003, 2004

Chassis Code:

WJ

👋 Introduction

Segment:

Mid-size Luxury SUV

Brand Perception:

Rugged capability with increasing on-road refinement and luxury features.

Key Competitors:

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

Distinctive Features:

Quadra-Drive II 4WD system (optional), comfortable and spacious interior, strong towing capacity, available premium audio and navigation systems.

Target Audience:

Families and individuals seeking a capable SUV for daily driving, occasional off-roading, and towing.

📋 Manual Details

Primary Coverage:

North America

Secondary Coverage:

Global markets (where applicable with specific regional variations noted)

Estimated Pages:

1000+

Type:

Factory Service Manual (FSM) / Workshop Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Powertrain:

Engine mechanical, engine electrical, fuel system, exhaust system, cooling system, lubrication system, transmission (automatic & manual), transfer case, driveline components

Chassis:

Suspension (front & rear), steering system, brake system (hydraulic & ABS), wheels & tires

Electrical:

Body electrical system, starting & charging system, lighting, instrumentation, power accessories (windows, locks, seats), HVAC electrical, diagnostic connectors (OBD-II)

Body:

Body construction, exterior trim, interior trim, doors, hood, tailgate, glass, seals, paint & surface treatment

Maintenance:

Scheduled maintenance, fluid checks & changes, filter replacements, lubrication, inspection points

Diagnostics:

Troubleshooting guides, symptom-based diagnostics, diagnostic trouble code (DTC) interpretation and procedures

Repair:

Component removal & installation, disassembly & reassembly, torque specifications, alignment procedures, wiring diagrams

Specifications:

Component specifications, tolerances, capacities, electrical specifications, diagnostic data

Depth:

Comprehensive: Covers everything from basic maintenance to complete engine and transmission rebuilds, including complex electrical diagnostics and bodywork repairs.

📊 Manual Specifications

Digital Format:

PDF (Portable Document Format)

Quality:

High-resolution scans of original factory documentation, suitable for printing.

Binding:

Not applicable (digital download)

Paper:

Not applicable (digital download)

⚙️ Engine Specifications

Engine 1:

4.0L (3956 cc) SOHC 12-valve V6 (2001-2004)

Engine 1 Code:

PowerTech (Idler pulley design variations exist)

Engine 1 Hp:

190 hp @ 4400 rpm

Engine 1 Torque:

235 lb-ft @ 3200 rpm

Engine 2:

4.7L (4701 cc) SOHC 16-valve V8 (2001-2004)

Engine 2 Code:

PowerTech V8 (early versions had some valve seat issues)

Engine 2 Hp:

235 hp @ 4800 rpm (2001-2002), 235 hp @ 4700 rpm (2003-2004)

Engine 2 Torque:

300 lb-ft @ 3200 rpm (2001-2002), 325 lb-ft @ 3200 rpm (2003-2004)

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline (87 octane recommended, higher for improved performance)

Compression Ratio V6:

9.3:1

Compression Ratio V8:

9.6:1

🔧 Transmission

Transmission Std V6:

42RE 4-Speed Automatic (Rear-wheel drive)

Transmission Std V8:

44RE 4-Speed Automatic (Rear-wheel drive)

Transmission Opt 4Wd V6:

42RE 4-Speed Automatic with Command-Trac NV231/NV242 Transfer Case

Transmission Opt 4Wd V8:

44RE 4-Speed Automatic with NV247 (Selec-Trac) or NV247 (Quadra-Drive II) Transfer Case

Transmission Fluid Type:

ATF+4 (MS-9602)

Transfer Case Fluid Type:

NV231/NV242: ATF+4; NV247: Mopar Automatic Transmission Fluid - P5156889AA or equivalent.

Torque Converter Lockup:

Variable torque converter lockup clutch for improved fuel economy.

📐 Dimensions

Length:

187.8 inches (4768 mm)

Width:

74.7 inches (1897 mm)

Height:

67.4 inches (1712 mm)

Wheelbase:

116.0 inches (2946 mm)

Seating Capacity:

5 passengers

Cargo Volume Behind Rear Seat:

33.3 cu ft (943 liters)

Cargo Volume With Rear Seat Folded:

78.5 cu ft (2223 liters)

Curb Weight V6:

Approx. 4300 lbs (1950 kg)

Curb Weight V8:

Approx. 4450 lbs (2018 kg)

Towing Capacity:

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

🛡️ Safety Features

NHTSA Rollover Resistance Score:

3 out of 5 stars (calculated)

ABS:

Standard Anti-lock Braking System (ABS) on all wheels.

Traction Control:

Optional All-Speed Traction Control (ASTC).

Stability Control:

Not available on this generation.

Airbags Front:

Standard dual front airbags.

Airbags Side:

Optional front seat-mounted side airbags.

Seatbelts:

Three-point seatbelts with pretensioners for front occupants.

💡 Technology Features

Available Features:

Premium Infinity Gold audio system with subwoofer, CD player, optional cassette player, optional navigation system (largely outdated by modern standards but functional).

Climate Control:

Manual or optional automatic climate control (dual-zone).

Cruise Control:

Standard cruise control.

Parking Assist:

Not available.

Auxiliary Input:

Not available on factory systems; aftermarket solutions may exist.

🔧 Maintenance

Oil Change Interval:

Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6 months, whichever comes first (depending on driving conditions).

Air Filter Replacement:

Every 30,000 miles (48,000 km) or as needed based on inspection.

Spark Plug Replacement V6:

Approx. 100,000 miles (160,000 km) with recommended spark plugs (e.g., Champion copper or platinum).

Spark Plug Replacement V8:

Approx. 100,000 miles (160,000 km) with recommended spark plugs (e.g., Champion platinum).

Engine Oil V6:

SAE 10W-30 (API certified, ILSAC GF-3)

Engine Oil V8:

SAE 5W-30 (API certified, ILSAC GF-3)

Coolant:

Mopar Antifreeze/Coolant (MS-9769) or equivalent (50/50 mix with distilled water).

Brake Fluid:

DOT 3.

Common Issue V8 Heads:

Cracked cylinder heads on early 4.7L V8 engines (prior to engine build date July 12, 2001), particularly common around the valve seats. The manual will detail inspection and replacement procedures.

Common Issue Idler Pulley:

Idler pulley bearing failure on 4.0L V6 engines can lead to belt noise or failure. Manual covers inspection and replacement.

Common Issue Transfer Case:

NV247 transfer case (Quadra-Drive II) can experience issues with its clutches and viscous coupler if fluid is not changed regularly. Manual provides service recommendations.

Common Issue Ignition Coils:

Individual ignition coil failure is not uncommon, leading to misfires. Manual details testing and replacement.

📚 Vehicle History

Brand Origin:

Jeep is an American automotive brand with a long history of producing rugged, off-road capable vehicles, originating from military applications in World War II.

Previous Generation:

Jeep Grand Cherokee ZJ (1993-1998)

Next Generation:

Jeep Grand Cherokee WK (2005-2010)

Design Changes From Zj:

WJ featured a more refined exterior and interior, improved aerodynamics, and the introduction of the Quadra-Drive II system. It was also slightly larger.

Production Period:

1999-2004

Assembly Locations:

Jefferson North Assembly Plant, Detroit, Michigan, USA.

🏆 Awards & Recognition

Editor Recommendations:

Often praised for its off-road prowess (especially with Quadra-Drive II) and comfortable ride for its class during its production years. Competed effectively against established players.

Fuel Economy Rankings:

Typically mid-pack for its class, with the V6 offering slightly better mileage than the V8. The manual will provide precise MPG figures.