🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation:

WJ

Year:

2001

Chassis Code:

WJ

👋 Introduction

Segment:

Mid-size Luxury SUV

Competitors:

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

Distinguishing Factors:

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

Demographic:

Families, outdoor enthusiasts, individuals seeking a capable and comfortable SUV.

📋 Manual Details

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

Downloadable Digital File

Estimated Pages:

Over 1500

Intended Audience:

Professional Technicians and DIY Enthusiasts

📖 Manual Coverage

Engine:

4.0L Power Tech I6, 4.7L Magnum V8 (PFE/PGK)

Transmission:

42RE (4-speed Automatic), 45RFE/545RFE (4-speed/5-speed Automatic)

Drivetrain:

NV140, NV242, NV247, NV235 Transfer Cases, Selec-Trac, Quadra-Trac II, Quadra-Drive

Suspension:

Front: Solid Axle with Coil Springs, Rear: Solid Axle with Coil Springs

Brakes:

Front: Ventilated Disc, Rear: Solid Disc (with or without ABS), Hydraulic Power Booster

Steering:

Power Assisted Recirculating Ball

Electrical:

Battery, Charging System, Ignition System, Lighting, Instrument Cluster, Power Accessories, HVAC Controls, Anti-Lock Brakes (ABS), Sentry Key Immobilizer System

Body:

Exterior Body Panels, Doors, Hood, Tailgate, Interior Trim, HVAC System, Seats, Glass

Diagnostics:

On-Board Diagnostics (OBD-II), DTCs (Diagnostic Trouble Codes), Symptom-Based Troubleshooting

Maintenance:

Oil Change, Filter Replacement, Fluid Checks and Top-offs, Spark Plug Replacement, Belt Inspections and Replacement

Repair:

Engine Overhaul, Transmission Rebuild, Drivetrain Component Replacement, Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis and Replacement

Troubleshooting:

Step-by-step diagnostic procedures for common and uncommon issues across all major systems

Specifications:

Torque specifications, fluid capacities and types, electrical schematics, component measurements

Installation:

Guidance for installing and removing major components and accessories

Depth:

Comprehensive: Covers everything from basic fluid changes to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Quality:

High-Resolution, Searchable Text

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine 1:

4.0L Power Tech I6

Engine 1 Displacement:

3952 cc (241 cu in)

Engine 1 Bore X Stroke:

98.5 mm x 86.6 mm (3.88 in x 3.41 in)

Engine 1 Compression Ratio:

8.8:1

Engine 1 Horsepower:

190 hp @ 4400 rpm

Engine 1 Torque:

235 lb-ft @ 3200 rpm

Engine 2:

4.7L Magnum V8

Engine 2 Displacement:

4701 cc (287 cu in)

Engine 2 Bore X Stroke:

93.0 mm x 86.6 mm (3.66 in x 3.41 in)

Engine 2 Compression Ratio:

9.6:1

Engine 2 Horsepower:

235 hp @ 4700 rpm

Engine 2 Torque:

295 lb-ft @ 3200 rpm

Fuel Delivery:

Multi-port Electronic Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

ECU:

Chrysler NGC (Next Generation Controller)

🔧 Transmission

Transmission 1:

42RE 4-Speed Automatic

Transmission 2:

45RFE/545RFE 4/5-Speed Automatic (later model year variants)

Transfer Case Options:

NV140 (2WD), NV242 (Selec-Trac Full-Time 2-Speed), NV247 (Quadra-Trac II Full-Time 2-Speed), NV235 (Quadra-Drive with Electronic Limited Slip Differentials)

Automatic Transmission Fluid:

ATF+4 (Mopar)

Automatic Transmission Fluid Capacity:

Approx. 8.5 quarts (8.0 L) for 42RE, 10.5 quarts (9.9 L) for 45RFE/545RFE (check manual for exact)

📐 Dimensions

Wheelbase:

116.0 inches (2946 mm)

Length:

189.8 inches (4821 mm)

Width:

74.0 inches (1880 mm)

Height:

72.5 inches (1841 mm)

Ground Clearance:

Approx. 8.0 inches (203 mm) to 8.7 inches (221 mm) depending on configuration

Curb Weight:

Approx. 4,200 - 4,700 lbs (1905 - 2132 kg) depending on engine and drivetrain

Gross Vehicle Weight Rating Gvwr:

Approx. 5,600 - 6,100 lbs (2540 - 2767 kg)

Cargo Volume Behind Rear Seat:

Approx. 39.2 cu ft (1.11 m³)

Cargo Volume With Rear Seat Folded:

Approx. 74.4 cu ft (2.11 m³)

🛡️ Safety Features

NHTSA Front Crash Test Rating:

4 Stars (Driver), 5 Stars (Passenger) - Model Year dependent and varies

IIHS Frontal Offset Rating:

Good (for most models)

ABS:

Standard (Anti-lock Braking System)

Traction Control:

Optional (depending on Selec-Trac or Quadra-Drive system)

Airbags:

Driver and front passenger airbags. Optional side curtain airbags.

Seatbelts:

Three-point seat belts with pretensioners

Sentry Key:

Standard Immobilizer System

💡 Technology Features

Audio System:

Standard AM/FM/CD player, optional Infinity Gold premium sound system with subwoofer, optional rear entertainment system.

Navigation:

Optional factory navigation system available on higher trims.

Cruise Control:

Standard on most models.

Remote Keyless Entry:

Optional.

🔧 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 and oil type used, refer to manual for specifics).

Engine Air Filter Replacement:

Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection.

Spark Plug Replacement:

4.0L I6: Approx. 100,000 miles (160,000 km) with platinum plugs. 4.7L V8: Approx. 60,000-100,000 miles (96,000-160,000 km) with platinum/iridium plugs (refer to manual for specific plug type).

Engine Oil Specification:

SAE 5W-30 (preferred for both engines, check manual for specific climate recommendations).

Coolant Specification:

Chrysler HOAT (Hybrid Organic Acid Technology) antifreeze (usually pink or orange) - Mopar P/N 05103533AA or equivalent.

Brake Fluid Specification:

DOT 3.

Power Steering Fluid Specification:

ATF+4 (Mopar P/N 05013457AA or equivalent).

Common Problems:

Cracked cylinder heads (4.7L V8), death wobble (steering/suspension related), front sway bar links wear, radiator leaks, water pump leaks, heater core issues, transmission solenoid issues, PCM failure (less common).

Recommendations:

Regularly inspect and replace serpentine belts, check for coolant leaks, maintain proper tire pressure and alignment, service the cooling system at recommended intervals to mitigate head cracking in the 4.7L.

📚 Vehicle History

Brand Origin:

Jeep, a division of Chrysler (now Stellantis), has a storied history rooted in World War II military vehicles, renowned for off-road prowess.

Previous Generation:

Jeep Grand Cherokee (ZJ)

Next Generation:

Jeep Grand Cherokee (WK)

Model Years:

1999-2004 (WJ Generation)

Manufacturing Plant:

Jefferson North Assembly Plant, Detroit, Michigan, USA

🏆 Awards & Recognition

Vehicle Awards:

While specific 2001 awards are varied, the WJ generation was generally well-regarded for its blend of luxury, capability, and comfort, often appearing on "best SUV" lists of its time. Recognitions often focused on its off-road prowess and ride quality.