🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation:

WJ

Year:

2001

👋 Introduction

Positioning:

Premium mid-size SUV with significant off-road capability, targeting both family use and adventurous lifestyles.

Competitors 2001:

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

Vehicle Advantages:

Robust platform, strong towing capacity, iconic Jeep off-road capability (Quadra-Drive system), comfortable ride for a body-on-frame SUV, spacious interior.

Value Proposition:

Enables significant cost savings by empowering owners to perform complex repairs and maintenance, ensuring the vehicle remains in 100% condition.

📋 Manual Details

Primary Coverage:

Vehicle repair and servicing

Scope:

Front to back of the vehicle

Estimated Page Count:

Extensive (specific number not provided, but implies comprehensive coverage)

Type:

Factory Service Manual (FSM) / Service Repair Manual

Language:

English

Format:

Likely a digital format (PDF) given the context of online sales, but historically these were printed.

📖 Manual Coverage

Engine Systems:

Engine overhaul and rebuilding, engine performance, troubleshooting and diagnostics, computer diagnostic trouble tree charts, firing orders, timing belt service procedures.

Drivetrain Systems:

Transmission removal and installation, transmission in-car servicing, U-joint and CV-joint service procedures.

Chassis Systems:

Front end and alignment procedures and specifications, suspension.

Braking Systems:

Brake servicing procedures, complete torque specifications (relevant to brakes).

Electrical Systems:

Complete wiring diagrams, vacuum diagrams.

Climate Control:

Air conditioning service and capacities.

Diagnostic Procedures:

Troubleshooting and diagnostics, computer diagnostic trouble tree charts.

Repair Procedures:

Engine overhaul and rebuilding, transmission removal and installation, in-car transmission servicing, brake servicing, U-joint and CV-joint service, general repair procedures.

Maintenance Procedures:

Timing belt service, general servicing, A/C service, alignment.

Depth:

Comprehensive: Includes illustrations, diagrams, technical specifications, in-depth illustrations, and step-by-step explanations suitable for users with basic mechanical knowledge.

Application Level:

Professional workshop level, also accessible for skilled DIY enthusiasts.

📊 Manual Specifications

Format:

Digital (presumed PDF), likely searchable and printable.

Quality:

High quality, designed for clarity of diagrams and text (typical of FSMs).

Type:

N/A (digital format assumed)

Type:

N/A (digital format assumed)

⚙️ Engine Specifications

Engine Family:

Jeep PowerTech/Chrysler Magnum

Available Engines 2001:

4.0L Inline-6 (PowerTech), 4.7L V8 (Magnum)

Engine Code 4 0L:

Often referred to as the '242'

Engine Code 4 7L:

Often referred to as the '287'

Horsepower 4 0L:

Approx. 190 hp @ 4600 rpm

Torque 4 0L:

Approx. 235 lb-ft @ 3200 rpm

Horsepower 4 7L:

Approx. 220-227 hp @ 4700 rpm

Torque 4 7L:

Approx. 285-300 lb-ft @ 3200 rpm

Fuel Delivery:

Multi-port Fuel Injection (MPI)

Coolant Type:

Chrysler/Mopar OAT (Organic Additive Technology) - Pink/Orange

Ignition Type:

Distributorless Ignition System (DIS) for 4.0L, Coil-on-Plug for 4.7L V8.

🔧 Transmission

Type:

4-speed automatic (42RE for 4.0L, 45RFE/44RE for 4.7L)

Type:

5-speed manual (NV3550) was available on some base models, but rare.

Transfer Case Options:

NV231 (Command-Trac 2WD/4WD), NV247 (Selec-Trac full-time 4WD), NV249 (Quadra-Trac full-time 4WD - less common on WJ).

Atf Type 42Re:

ATF+3 or ATF+4 (Chrysler)

Atf Type 45Rfe:

ATF+4 (Chrysler)

📐 Dimensions

Wheelbase:

Approx. 116.1 inches (2950 mm)

Length:

Approx. 183.4 inches (4658 mm)

Width:

Approx. 73.0 inches (1854 mm)

Height:

Approx. 67.5 inches (1715 mm)

Curb Weight Min:

Approx. 4200 lbs (1905 kg)

Gross Vehicle Weight Rating Gvwr:

Approx. 5700-6000 lbs (2585-2722 kg) depending on configuration

Cargo Volume Behind 2Nd Row:

Approx. 37.5 cubic feet (1062 liters)

Cargo Volume With 2Nd Row Folded:

Approx. 77.0 cubic feet (2180 liters)

🛡️ Safety Features

NHTSA Front Impact Driver:

4 Stars (for 2001 model year)

NHTSA Front Impact Passenger:

4 Stars (for 2001 model year)

ABS:

Standard on most models, 4-wheel disc brakes with ABS.

Traction Control:

Available as an option (TCS).

Airbags:

Standard front driver and passenger airbags.

Seatbelts:

3-point seatbelts with pretensioners for front occupants.

💡 Technology Features

Audio System:

Optional premium audio systems, including Infinity Gold and others. CD player and cassette tape options were common.

Cruise Control:

Standard on most trims.

Trailer Tow Package:

Available, includes trailer hitch receiver, wiring harness, and potentially transmission cooler.

🔧 Maintenance

Oil Change Interval:

Typically 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used. Consult manual for specific recommendations.

Transmission Fluid Change:

Recommended every 30,000-60,000 miles, depending on driving conditions and transmission type. Crucial for longevity.

Coolant Flush:

Typically every 30,000-50,000 miles or as specified by the manual for OAT coolant.

Spark Plug Replacement 4 0L:

Refer to manual, typically around 100,000 miles for platinum-tipped plugs.

Spark Plug Replacement 4 7L:

Refer to manual, typically around 100,000 miles for platinum-tipped plugs.

Engine Oil Spec:

API Certified SAE 5W-30, or 10W-30 if ambient temperatures are above 0°F (-18°C). Check manual for exact recommendation.

Power Steering Fluid:

ATF+3 or ATF+4 (Chrysler)

Brake Fluid:

DOT 3

Common Problems 4 0L:

Cracked cylinder heads (less common than earlier engines but possible), oil filter adapter leaks, distributorless ignition system (DIS) coil pack failures.

Common Problems 4 7L:

Cracked cylinder heads (a more prevalent issue on this engine), valve seat recession, oil sludge buildup if maintenance is neglected, head gasket failures.

Common Problems Transmission:

42RE/45RFE transmission issues including solenoid pack failure, torque converter clutch (TCC) issues, and potential input/output shaft seal leaks.

Common Problems Suspension:

Front end shimmy, worn control arm bushings, and sway bar end links due to weight and off-road use.

Common Problems Electrical:

Heater control panel failures, power window motor failures, PCM issues, and potential SRS (airbag) warning light illumination.

📚 Vehicle History

Heritage:

Jeep, a division of Chrysler Corporation, has a long history rooted in military vehicles and renowned off-road capability dating back to WWII.

Wj Generation Introduction:

The WJ Grand Cherokee was introduced for the 1999 model year, replacing the ZJ. It featured a more refined interior, improved on-road manners, and advanced 4x4 systems. The 2001 model year saw minor updates and refinements.

Manufacturing Location:

Detroit, Michigan, USA (Jefferson North Assembly Plant)

🏆 Awards & Recognition

Automotive Press Reviews:

The WJ Grand Cherokee was generally well-received by automotive press for its combination of on-road comfort and off-road prowess, particularly when equipped with the Quadra-Drive system. Often cited for its powerful V8 engine options.