🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Code:

WJ

Production Years:

1999-2005

👋 Introduction

Positioning:

The Jeep Grand Cherokee WJ occupied a strong position in the premium mid-size SUV segment, known for its blend of luxury, capability, and off-road prowess.

Competitors:

Competed against vehicles like the Ford Explorer, Chevrolet TrailBlazer/Blazer, Toyota 4Runner, and Land Rover Discovery.

Features:

Available with V8 engines, advanced four-wheel-drive systems, comfortable interiors, and a focus on towing and off-road capability.

📋 Manual Details

Overall Coverage:

All models and repairs A-Z

Mechanical Coverage:

Comprehensive mechanical repairs

Electrical Coverage:

Comprehensive electrical system repairs and diagnostics

Estimated Pages:

Likely extensive, as indicated by 'ALL PAG...'

Type:

Workshop Service and Repair Manual

Language:

Spanish

Format:

Likely Digital (PDF) due to common sales practices, but physical is possible if indicated by 'ALL PAG...'

📖 Manual Coverage

Engine:

All engine variants, including diagnostics, overhaul, and tuning

Transmission:

Both automatic and manual transmissions, including repair and rebuild procedures

Drivetrain:

Four-wheel drive systems (Quadra-Trac II, NV247 transfer case), differentials, axles, and drive shafts

Suspension:

Front and rear suspension systems, including coil springs, shock absorbers, control arms, and steering linkage

Brakes:

Brake system components, including ABS, front and rear disc brakes, hydraulic lines, and calipers

Electrical System:

Complete electrical schematics, wiring diagrams, fuse boxes, lighting, power accessories, and diagnostic procedures

Climate Control:

HVAC system operation, diagnosis, and repair

Body:

Body panel repair, trim removal and installation, doors, glass, and interior components

Fuel System:

Fuel pump, injectors, lines, tank, and emission control systems

Cooling System:

Radiator, water pump, thermostat, hoses, and fan clutch

Exhaust System:

Exhaust manifolds, catalytic converters, mufflers, and pipes

Steering System:

Power steering pump, rack and pinion, steering column, and linkages

Maintenance:

Regular maintenance schedules, fluid changes, filter replacements

Troubleshooting:

Diagnostic procedures for common and uncommon faults

Repair:

Step-by-step repair instructions for virtually all components

Overhaul:

Complete engine and transmission overhaul procedures

Diagnostics:

Detailed diagnostic flowcharts and procedures for electrical and mechanical issues

Specifications:

Torque specifications, clearances, and adjustment procedures

Depth:

Comprehensive, suitable for professional technicians and advanced DIYers

Visuals:

Tons of detailed pictures and diagrams

📊 Manual Specifications

Format:

Likely PDF, searchable and printable

Quality:

High quality, clear images and text

Binding:

N/A (if digital), or professional binding if physical

Type:

N/A (if digital), or durable paper stock if physical

⚙️ Engine Specifications

Engine 1:

4.0L Inline-6 (PowerTech)

Engine 1 Power:

Approx. 190-205 hp @ 4400-4600 rpm

Engine 1 Torque:

Approx. 235-255 lb-ft @ 3200-3500 rpm

Engine 2:

4.7L V8 (PowerTech)

Engine 2 Power:

Approx. 220-265 hp @ 4800-5200 rpm (depending on year and variant)

Engine 2 Torque:

Approx. 285-325 lb-ft @ 3200-3500 rpm (depending on year and variant)

Displacement Options:

4.0 Liters, 4.7 Liters

Type:

Sequential Multi-Port Fuel Injection (MPI)

Recommended Fuel:

87 Octane (minimum) for 4.0L I6; 89 Octane (recommended) for 4.7L V8

🔧 Transmission

Transmission 1:

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

Transmission 2:

45RFE / 545RFE 4-Speed Automatic (with 4.7L V8, later models may have 5-speed versions)

Overdrive:

All transmissions feature overdrive

4Wd Integration:

Integrated with Selec-Trac or Quadra-Drive/Quadra-Trac II systems

📐 Dimensions

Wheelbase:

116.1 inches (2950 mm)

Length:

184.6 inches (4690 mm)

Width:

73.0 inches (1855 mm)

Height:

66.7 inches (1695 mm)

Curb Weight:

Approx. 4,300 - 4,700 lbs (1950 - 2130 kg) depending on configuration

Towing Capacity:

Up to 6,500 lbs (2948 kg)

🛡️ Safety Features

NHTSA Frontal Crash Driver:

4 Stars (1999-2001 models)

NHTSA Frontal Crash Passenger:

4 Stars (1999-2001 models)

IIHS Frontal Offset:

Good (for models tested)

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Available (part of 4WD systems and optional electronic traction control)

Airbags:

Driver and front passenger airbags; optional side airbags

💡 Technology Features

Infotainment System:

Basic AM/FM/CD stereo systems; premium Infinity audio optional. Some later models may have optional navigation.

Cruise Control:

Standard cruise control

Parking Sensors:

Optional rear parking assist system on some trims.

Connectivity Options:

Limited by era; typically analog connections for auxiliary devices.

🔧 Maintenance

Oil Change Interval:

Every 3,000-5,000 miles (4,800-8,000 km) or 6 months, depending on oil type and driving conditions (refer to manual for specific recommendations).

Transmission Fluid Change:

Typically every 30,000-60,000 miles (48,000-96,000 km) or as specified for severe service.

Engine Oil:

SAE 5W-30 or SAE 10W-30 (check owner's manual for exact specification and API service category).

Transmission Fluid:

ATF+4 (for 45RFE/545RFE) or ATF+3 (for 42RE, if not superseded by ATF+4)

Coolant:

Mopar OAT (Old World Industries) or HOAT (Hybrid OAT) Antifreeze/Coolant, typically a 50/50 mix with distilled water.

Brake Fluid:

DOT 3

Common Issues 1:

Head gasket failure on 4.7L V8 engine (especially early models).

Common Issues 2:

Water pump leaks or failures.

Common Issues 3:

Cracked cylinder heads on 4.7L V8.

Common Issues 4:

Front suspension wear (ball joints, tie rod ends, control arm bushings).

Common Issues 5:

Radiator end tank cracks leading to coolant leaks.

Common Issues 6:

Transfer case chain stretch or failure in 4WD systems.

📚 Vehicle History

Jeep Heritage:

Jeep has a long-standing legacy in off-road vehicles and SUVs, dating back to WWII.

Wj Generation:

The WJ generation represented a significant redesign from its predecessor (ZJ), featuring a more refined interior, updated styling, and advanced powertrains and four-wheel-drive systems.

Manufacturing Location:

Detroit, Michigan, USA

Production Dates:

1999 model year through 2005 model year.

🏆 Awards & Recognition

Awards:

While specific awards for the WJ are numerous in the automotive press during its production run for its class, notable mentions often include praise for its V8 power, off-road capability, and luxurious interior appointments for the segment.