🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Year:

2001

Chassis Code:

WJ

Engine Code Primary:

4.0L Inline 6-Cylinder (ID: ERH)

Engine Code Optional:

4.7L V8 (ID: ENH)

👋 Introduction

Segment:

Mid-size Luxury SUV

Target Audience:

Owners seeking to perform their own maintenance and repairs, independent repair shops, dealership technicians

Competitors:

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

Vehicle Attributes:

Renowned for its capability, comfortable ride, and available upscale features; WJ generation marked a significant step up in refinement and technology

Manual Value Proposition:

Provides factory-level diagnostic and repair information, saving significant costs compared to dealership service; empowers users with detailed, accurate procedures.

📋 Manual Details

Primary Coverage:

All repair and maintenance procedures for the 2001 Jeep Grand Cherokee WJ

Secondary Coverage:

Diagnostic information, wiring diagrams, component removal and installation

Estimated Page Count:

Over 2000 pages (typical for a comprehensive factory service manual)

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

Digital PDF

📖 Manual Coverage

Powertrain:

Engine (4.0L I6, 4.7L V8), Automatic Transmission (42RE, 45RFE/545RFE), Transfer Case (NV242, NV247), Differentials (Front/Rear)

Chassis:

Suspension (Front/Rear), Steering, Brakes (ABS, standard), Wheels & Tires, Frame & Bumpers

Electrical:

Instrument Cluster, Lighting, Audio/Video, Chime/Buzzer, Clock, Electronic Control Modules (ECM/PCM), Ignition Control, Horn, Lamps, Message Systems, Power Systems, Restraints (Airbags), Speed Control, Vehicle Theft Security, Wipers/Washers, Navigation/Telecommunication, Wiring Harnesses

Body:

Body Panels, Doors, Windows, Seats, Interior Trim, HVAC (Heating and Air Conditioning)

Emissions:

Emission Control Systems

Maintenance:

Scheduled maintenance, lubrication, fluid checks and changes, filter replacements

Repair:

Component removal, disassembly, inspection, repair, assembly, and installation for all major systems

Diagnostics:

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

Depth:

Comprehensive (from basic fluid changes to complete engine and transmission rebuilds, complex electrical diagnostics)

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely text-searchable, enabling quick access to specific information

Resolution:

High resolution, suitable for printing individual pages or sections

Binding Type:

N/A (Digital Delivery)

Paper Type:

N/A (Digital Delivery)

⚙️ Engine Specifications

Engine Type 1:

4.0L OHV Inline 6-Cylinder (PowerTech)

Displacement 1:

3952 cc (241 cu. in.)

Horsepower 1:

190 hp @ 4600 rpm

Torque 1:

235 lb-ft @ 3200 rpm

Engine Type 2:

4.7L SOHC V8 (PowerTech)

Displacement 2:

4701 cc (287 cu. in.)

Horsepower 2:

227 hp @ 4700 rpm

Torque 2:

300 lb-ft @ 3200 rpm

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline (87 octane recommended for 4.0L, 89 octane recommended for 4.7L)

🔧 Transmission

Transmission Type 1:

4-Speed Automatic (42RE) - Typically with 4.0L engine

Transmission Type 2:

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

Transfer Case Options:

NV242 Selec-Trac (part-time 4WD with 2WD option), NV247 Quadra-Trac II (full-time 4WD with electronic varying torque split)

Transmission Fluid Type 42Re:

ATF+4 (Mopar material #05013457AA or equivalent)

Transmission Fluid Type 45Rfe 545Rfe:

ATF+4 (Mopar material #05013457AA or equivalent)

📐 Dimensions

Wheelbase:

111.2 inches (2824 mm)

Length:

181.5 inches (4610 mm)

Width:

73.5 inches (1867 mm)

Height:

66.7 inches (1694 mm)

Curb Weight 4.0L:

4,194 lbs (1902 kg)

Curb Weight 4.7L:

4,390 lbs (1991 kg)

Towing Capacity:

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

🛡️ Safety Features

NHTSA Frontal Driver:

Not explicitly rated for 2001 model year under current stringent standards, but designed to meet Federal Motor Vehicle Safety Standards (FMVSS)

NHTSA Frontal Passenger:

Not explicitly rated for 2001 model year under current stringent standards, but designed to meet Federal Motor Vehicle Safety Standards (FMVSS)

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional (depending on trim and drivetrain)

Airbags:

Standard front airbags (driver and passenger), optional side airbags

Seatbelts:

All seating positions equipped with three-point seat belts

💡 Technology Features

Audio Options:

Various factory radio systems including AM/FM stereo, CD player, cassette player, and optional premium sound systems (e.g., Infinity).

Navigation:

Optional factory navigation system available on some higher trim levels.

Cruise Control:

Standard Speed Control (Cruise Control) system.

Telematics:

Optional Uconnect or similar telematics/communication systems not typically found on 2001 models. Communication features would be limited to factory radio and optional phone integration (if equipped).

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles (8,000 km) or 6 months, whichever comes first, under normal driving conditions. Severe conditions may require more frequent changes.

Tire Rotation Interval:

Every 7,500 miles (12,000 km) or as recommended by tire manufacturer.

Transmission Fluid Change:

Typically around 60,000-100,000 miles (96,000-160,000 km), or per severe service schedule. Consult manual for exact intervals based on driving conditions.

Engine Oil Specification:

SAE 5W-30 (for both 4.0L and 4.7L engines)

Engine Coolant:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, HOAT (Hybrid Organic Additive Technology) type, or equivalent (typically a 50/50 mix with distilled water).

Power Steering Fluid:

Mopar Power Steering Fluid or equivalent (typically Mopar Type 2 or ATF+4 compatible)

Brake Fluid:

DOT 3 or DOT 4 brake fluid

Common Problems 4.0L:

Cracked cylinder heads (especially earlier WJ models with 0331 casting), manifold intake leaks, occasional coolant leaks from heater core/lines.

Common Problems 4.7L:

Valve seat recession, carbon buildup on valves, intake manifold gasket leaks, PCM failures (especially earlier versions).

Common Problems General:

Worn front suspension components (ball joints, tie rods, control arm bushings), water pump leaks, transfer case chain stretch (NV247), ABS sensor failures, rear main seal leaks.

📚 Vehicle History

Jeep Legacy:

Jeep has a long-standing reputation for off-road capability and ruggedness, dating back to its WWII origins.

Grand Cherokee Introduction:

First introduced in 1993 as a more luxurious and comfortable alternative to the Cherokee (XJ).

Wj Generation:

The WJ generation (1999-2004) represented a significant redesign, moving to unibody construction (like the Grand Cherokee ZJ) but with a focus on improved on-road manners, a more sophisticated interior, and advanced features.

Manufacturing Location:

Jefferson North Assembly Plant, Detroit, Michigan, USA

🏆 Awards & Recognition

Segment Awards:

Often praised by automotive journalists for its blend of on-road comfort and off-road capability in its class during its production run.

Fuel Economy Estimates:

EPA estimates typically around 13-15 MPG city / 17-19 MPG highway, depending on engine and drivetrain configuration.