🏷️ Basic Information

Make:

Jeep

Model:

Grand Cherokee

Generation Code:

WJ

Model Year:

1999

👋 Introduction

Market Segment:

Mid-size luxury SUV segment.

Competitors:

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

Key Features Vehicle:

Renowned for its off-road capability (Quadra-Coil suspension, available Quadra-Trac II 4WD), comfortable interior, and robust powertrain options.

Key Features Manual:

Provides exhaustive technical data, diagnostic procedures, and repair instructions essential for maintaining and repairing the WJ Grand Cherokee to factory specifications.

📋 Manual Details

Coverage Summary:

Comprehensive repair, maintenance, rebuilding, refurbishing, and restoration for Jeep Grand Cherokee WJ (1999 model year).

Estimated Page Count:

Over 1500 pages (typical for comprehensive workshop manuals of this era).

Manual Type:

Digital Workshop Repair Manual

Language:

English

Format:

Digital (likely PDF or similar, optimized for digital viewing and printing).

📖 Manual Coverage

Engine:

Detailed coverage of all engine options including diagnostics, repair procedures, component specifications, and troubleshooting for the 4.0L Inline-6 and 4.7L V8 Magnum engines.

Transmission:

Complete repair and overhaul procedures for the 42RE (4-speed automatic) and NV247 (Selec-Trac) transfer case, including diagnostic fault codes and fluid specifications.

Brakes:

Full coverage of the Anti-lock Braking System (ABS), hydraulic components, disc brake systems (front and rear), including bleeding procedures and specifications.

Suspension Steering:

Detailed schematics and repair instructions for front and rear suspension systems (solid front axle, multi-link rear), steering components, power steering system, and alignment specifications.

Electrical Electronics:

Extensive coverage of the vehicle's electrical system, including wiring diagrams, fuse and relay locations, diagnostic procedures for Body Control Module (BCM), Powertrain Control Module (PCM), lighting, accessories, and diagnostic trouble codes (DTCs).

Body Chassis:

Body repair, panel replacement, interior trim removal and installation, door mechanisms, glass, and chassis component repair.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, lubrication, and tune-up procedures.

Troubleshooting:

Systematic diagnostic procedures for identifying and resolving common and complex issues across all vehicle systems.

Repair Rebuild:

Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation of major and minor vehicle parts.

Diagnostics:

In-depth diagnostic strategies, use of diagnostic tools, interpretation of diagnostic trouble codes (DTCs), and electronic system diagnostics.

Technical Depth:

Expert-level detail suitable for professional mechanics and advanced DIY enthusiasts, covering everything from basic service to complete engine and transmission overhauls.

📊 Manual Specifications

File Type:

Digital format (e.g., PDF), allowing for searchability and electronic navigation.

Printability:

High-resolution digital files designed for clear printing of individual pages or sections.

Binding Type:

Not applicable (digital format).

Paper Type:

Not applicable (digital format).

⚙️ Engine Specifications

Engine 1 Type:

4.0L Inline-6 (242ci)

Engine 1 Power:

Approx. 190 hp @ 4600 rpm

Engine 1 Torque:

Approx. 235 lb-ft @ 3200 rpm

Engine 2 Type:

4.7L V8 Magnum (287ci)

Engine 2 Power:

Approx. 220-235 hp @ 4700 rpm

Engine 2 Torque:

Approx. 290-325 lb-ft @ 3200 rpm

Fuel System Type:

Multi-port Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline

🔧 Transmission

Transmission Type:

42RE 4-speed automatic (for 4.0L engine)

Transmission Type:

45RFE 4-speed automatic (for 4.7L V8, introduced later in WJ generation, but potentially applicable for updates/changes relevant to early models).

Transfer Case Type:

NV247 (Selec-Trac) full-time 4WD system

Transmission Features:

Electronically controlled with overdrive; Selec-Trac offers automatic 4WD engagement and driver-selectable 2WD/4WD Full-Time modes.

📐 Dimensions

Wheelbase:

116.0 inches (2946 mm)

Overall Length:

181.5 inches (4610 mm)

Overall Width:

71.5 inches (1816 mm)

Overall Height:

67.1 inches (1704 mm)

Cargo Volume Behind Rear Seat:

Approx. 40.1 cu ft (1135 L)

Cargo Volume With Rear Seat Folded:

Approx. 78.2 cu ft (2214 L)

Curb Weight:

Approx. 4,400 - 4,800 lbs (2000 - 2177 kg), depending on configuration.

Gross Vehicle Weight Rating:

Approx. 5,700 - 6,100 lbs (2585 - 2767 kg).

🛡️ Safety Features

NHTSA Front Impact Driver:

4-star rating (1999 model year).

NHTSA Front Impact Passenger:

4-star rating (1999 model year).

ABS:

Standard Anti-lock Braking System (ABS).

Traction Control:

Optional Traction Control System (TCS) available on some trims, especially with 4.7L V8.

Airbags:

Standard front airbags for driver and passenger; optional side-impact airbags available on some trims.

Seatbelts:

Front and rear seat belts with pretensioners for front occupants.

💡 Technology Features

Infotainment System:

Standard AM/FM stereo with cassette and optional CD player; premium Infinity Gold audio system available on higher trims.

Display Options:

Basic digital clock and radio display; no integrated navigation or complex screens in the 1999 model.

Driver Assistance Features:

Limited to ABS and optional Traction Control; advanced driver-assistance systems (ADAS) were not common in this era.

Connectivity Options:

Primarily basic audio connectivity; optional Sirius satellite radio availability may have begun to emerge late in the model year or for 2000 model.

🔧 Maintenance

Oil Change Interval:

Every 3,000 - 5,000 miles (5,000 - 8,000 km) or 6 months, depending on driving conditions and oil type used.

Transmission Fluid Change:

Every 30,000 - 60,000 miles (50,000 - 100,000 km) for automatic transmission fluid (ATF+4 recommended for later models, check specific manual for 1999).

Coolant Flush:

Every 30,000 - 50,000 miles (50,000 - 80,000 km).

Engine Oil Type:

SAE 5W-30 or 10W-30, meeting Chrysler MS-6395 specification (verify with specific manual).

Engine Oil Capacity:

4.0L: 6 quarts (5.7L); 4.7L V8: 7 quarts (6.6L).

Transmission Fluid Type:

ATF+3 or ATF+4 (check owner's manual for 1999 specifics; later WJ models officially recommend ATF+4).

Transfer Case Fluid Type:

NV247: Mopar Multi-Purpose Gear Lubricant or equivalent (check manual for exact spec).

Common Issues Engine:

Cracked cylinder heads on the 4.7L V8 (often related to overheating), oil filter adapter leaks.

Common Issues Transmission:

Overdrive clutch failure in the 42RE transmission, potential leaks from transmission cooler lines.

Common Issues Suspension:

Worn control arm bushings, track bar issues, potential for premature wear of front-end components due to weight and use.

Common Issues Electrical:

Faulty HVAC blower motor resistors, issues with power window regulators, and occasional body control module (BCM) glitches.

📚 Vehicle History

Jeep Heritage:

Jeep has a long-standing reputation for robust, go-anywhere capability, originating from its military roots.

Grand Cherokee Wj Introduction:

The WJ generation replaced the ZJ Grand Cherokee and was produced from 1999 to 2004. It marked a significant advancement in refinement, interior comfort, and technology compared to its predecessor.

Wj Platform Changes:

Introduced a more integrated body-on-frame design with improved aerodynamics, a wider stance, and the adoption of rack-and-pinion steering (previously recirculating ball).

Production Years:

1999-2004

Manufacturing Location:

Jefferson North Assembly, Detroit, Michigan, USA.

🏆 Awards & Recognition

Motor Trend SUV Of The Year:

While the WJ generation as a whole wasn't specifically awarded 'SUV of the Year' by MotorTrend in 1999, Jeep's consistent focus on off-road capability and towing prowess often earned it accolades in the SUV market during this period.

Four Wheeler Magazine:

Jeep Grand Cherokee models, particularly those with enhanced 4WD systems, were frequently praised by off-road focused publications like Four Wheeler for their trail performance.

Certification Type:

Not applicable for a workshop manual product, but reflects the vehicle's design and capabilities.