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Jeep Cherokee WJ 1999 Complete OFFICIAL Factory Service / Repair / Full Workshop Manual PDF Download
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Basic Information Identification Make: Jeep Model: Grand Cherokee Chassis Code: WJ Model Year: 1999 Trim Levels Covered: Laredo, Limited Engine Options Covered: 4.0L (High Output), 4.7L (Magnum) Introduction Market Position...
Type: Cars
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Sku: 37521
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Grand Cherokee
Jeep
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| Basic Information | |
| Identification | |
| Make: | Jeep |
| Model: | Grand Cherokee |
| Chassis Code: | WJ |
| Model Year: | 1999 |
| Trim Levels Covered: | Laredo, Limited |
| Engine Options Covered: | 4.0L (High Output), 4.7L (Magnum) |
| Introduction | |
| Market Position | |
| Market Position: | The Jeep Grand Cherokee WJ (1999-2004) was a significant evolution in the luxury SUV market, offering a blend of off-road capability and on-road comfort. This manual targets owners and technicians who need comprehensive diagnostic and repair information for this robust vehicle. |
| Competitive Analysis | |
| Competitive Analysis: | Competed against vehicles like the Ford Explorer, Chevrolet Blazer, Toyota 4Runner, and Land Rover Discovery. The WJ generation was lauded for its improved on-road manners and refined interior compared to its predecessor. |
| Key Features | |
| Key Features: | The 1999 Grand Cherokee WJ introduced significant upgrades, including the new 4.7L V8 engine option and a more integrated suspension design, making a detailed factory service manual essential for proper maintenance and repair. |
| Manual Details | |
| Coverage Areas | |
| Systems Covered: | Engine Mechanical, Engine Performance, Fuel System, Ignition System, Exhaust System, Cooling System, Lubrication System, Starting System, Charging System, Clutch, Manual Transmission, Automatic Transmission, Transfer Case, Driveshafts, Axles, Suspension (Front & Rear), Steering System, Brakes (Front & Rear), Wheels & Tires, Body & Frame, Exterior & Interior Trim, Heating & Air Conditioning (HVAC), Electrical System, Wiring Diagrams, Fuses & Relays, Diagnostic Procedures, Troubleshooting, Maintenance |
| Page Count | |
| Page Count: | 2234 |
| Manual Type | |
| Manual Type: | Complete Official Factory Service / Repair / Workshop Manual |
| Language | |
| Language: | English |
| Format | |
| File Format: | PDF Download |
| Manual Coverage | |
| Systems Covered | |
| Engine Mechanical Coverage: | Engine assembly, disassembly, internal component inspection and replacement (pistons, rings, rods, crankshaft, camshaft, cylinder heads, valves, valve train, timing components), block machining, balancing, motor mounts. |
| Engine Performance Coverage: | Fuel injection system, ignition system, sensors, diagnostics, emissions control, idle speed control, performance tuning, troubleshooting fuel and ignition faults. |
| Transmission Coverage: | Detailed procedures for both automatic (e.g., 42RE, 45RFE) and manual transmissions, including removal, disassembly, inspection, assembly, installation, fluid changes, and common issues. Covers transfer case operation and maintenance. |
| Suspension Steering Coverage: | Front and rear suspension components, steering system diagnosis and repair, alignment procedures, wheel bearings, CV boots, axle shafts. |
| Brakes Coverage: | Front and rear brake systems, including disc and drum brake service, rotor and pad replacement, brake shoe replacement, hydraulic system bleeding, ABS system diagnosis and repair, brake hose replacement. |
| Electrical Coverage: | Complete wiring diagrams, fuse and relay locations and functions, component testing, power distribution, lighting systems, instrument cluster, body control modules, diagnostic connector locations. |
| Body Frame Coverage: | Body panel replacement, door assembly, hood, tailgate, interior trim, seat mechanisms, glass replacement, structural component inspection and repair, rust prevention. |
| HVAC Coverage: | Air conditioning system diagnosis, refrigerant handling (with proper certification), heater core replacement, blower motor, controls, ducts, cabin air filter replacement. |
| Exhaust System Coverage: | Muffler, catalytic converter, exhaust pipes, hangers, and related fasteners. Includes diagnosis of exhaust leaks and performance issues. |
| Procedures Included | |
| Maintenance Procedures: | Recommended maintenance schedules, oil changes, fluid changes (transmission, transfer case, differentials, coolant, brake fluid, power steering fluid), filter replacements (oil, air, fuel, cabin), spark plug and wire replacement, tire rotation and balancing, battery maintenance. |
| Repair Procedures: | Detailed step-by-step repair instructions for virtually all components and systems, including engine rebuilds, transmission overhauls, suspension repairs, brake system overhauls, electrical diagnostics and repair, body panel replacement, interior component repair. |
| Troubleshooting Procedures: | Systematic diagnostic approaches for common and uncommon problems, fault code interpretation, symptom-based troubleshooting charts, component testing procedures. |
| Diagnostics Procedures: | Detailed diagnostic flowcharts for engine performance, transmission operation, HVAC, brakes, and electrical systems. Includes OBD-II diagnostic trouble code (DTC) definitions and troubleshooting steps. |
| Wheel Alignment: | Detailed specifications and procedures for front and rear wheel alignment, including camber, caster, toe, and thrust angle adjustments. |
| Technical Depth | |
| Technical Depth: | Comprehensive, covering everything from basic fluid changes and inspections to complete engine and transmission rebuilds, advanced electrical diagnostics, and bodywork repairs. Includes torque specifications for all fasteners. |
| Electrical Diagrams Detail: | Includes comprehensive color-coded wiring diagrams for all major electrical systems, aiding in pinpointing circuit faults and diagnosing electrical issues accurately. |
| Torque Specifications: | Provides detailed torque specifications for all critical fasteners, including engine components, suspension, brakes, wheels, and driveline. Essential for ensuring proper assembly and safety. |
| Manual Specifications | |
| File Format | |
| File Format: | |
| Print Quality | |
| Print Quality: | Excellent Factory Quality |
| Binding Type | |
| Binding Type: | Digital Download (PDF) |
| Paper Type | |
| Paper Type: | N/A (Digital) |
| File Size | |
| File Size: | 74.0 MB |
| Features | |
| Zoom Functionality: | Yes (Zoom in/out) |
| Searchability: | Likely searchable text within PDF (standard for factory manuals) |
| Delivery Method | |
| Delivery Method: | Instant Download |
| Engine Specifications | |
| Primary Engine | |
| 4.0L Engine Description: | The legendary Jeep 4.0L (242 CID) inline-six cylinder engine. Known for its durability, torque, and robust construction. Features overhead valve (OHV) design. |
| 4.0L Horsepower: | Approximately 190-195 hp (varies slightly by year and tuning) |
| 4.0L Torque: | Approximately 235-245 lb-ft (varies slightly by year and tuning) |
| 4.7L Engine Description: | The optional 4.7L (287 CID) PowerTech V8 engine. A more modern overhead cam (OHC) V8 designed for improved performance and refinement. |
| 4.7L Horsepower: | Approximately 220-235 hp (varies slightly by year and tuning) |
| 4.7L Torque: | Approximately 280-300 lb-ft (varies slightly by year and tuning) |
| Performance | |
| Fuel Delivery System: | Sequential Multi-port Fuel Injection (MPI) |
| Ignition System: | Distributorless Ignition System (DIS) or Distributor with Coil-on-Plug (COP) depending on specific engine variant and build date. |
| Cooling System Type: | Pressurized liquid cooling system with a radiator, fan, and coolant reservoir. |
| Fuel System | |
| Fuel Type: | Unleaded Gasoline |
| Transmission | |
| Standard | |
| Standard Transmission: | Likely the 45RFE 4-speed automatic transmission for the 4.7L V8. The 4.0L may have had the 42RE 4-speed automatic as standard, though manual transmissions were less common in the WJ generation. |
| Optional | |
| Optional Transmission: | Manual transmission options were limited, possibly a 5-speed manual (NV3550) for specific configurations, but the 4-speed automatics were predominant. |
| Features | |
| Transfer Case: | New Process Gear (NPG) NV242 Selec-Trac (full-time 2-speed) or NV247 Quadra-Drive (full-time 4WD with electronic limited-slip differentials) were common options. |
| Transmission Fluid Capacity: | Varies by transmission type (e.g., 42RE, 45RFE). Manual will specify exact capacity for refill and overhaul. |
| Dimensions | |
| Exterior | |
| Wheelbase: | Approximately 109.0 inches |
| Length: | Approximately 181.5 inches |
| Width: | Approximately 71.9 inches |
| Height: | Approximately 65.1 inches |
| Weights | |
| Curb Weight: | Approximately 4,100 - 4,500 lbs (depending on engine and equipment) |
| Towing Capacity: | Up to 5,000 lbs (with proper equipment) |
| Gross Vehicle Weight Rating Gvwr: | Typically around 5,500 - 6,000 lbs. |
| Safety Features | |
| Ratings | |
| NHTSA Crash Test Ratings: | Frontal crash test ratings for this era are available through NHTSA archives. Generally, SUVs of this period received mixed results compared to modern standards. |
| Active Features | |
| Active Safety Features: | Four-wheel anti-lock braking system (4-wheel ABS), available traction control (on some models). |
| Passive Features | |
| Passive Safety Features: | Driver and passenger front airbags, side impact door beams, crumple zones. |
| Technology Features | |
| Infotainment | |
| Infotainment System 1999: | Basic AM/FM/CD player or cassette player, optional premium sound system. Analog climate controls and instrument cluster. |
| Driver Assistance | |
| Driver Assistance Features 1999: | Limited driver assistance features by modern standards. Primarily focused on ABS and optional traction control. Cruise control was standard on most trims. |
| Connectivity | |
| Connectivity Features 1999: | No advanced connectivity features like Bluetooth or USB. May have had an optional auxiliary input for aftermarket stereos. |
| Maintenance | |
| Service Intervals | |
| Oil Change Interval: | Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions and oil type used. Refer to manual for specific recommendations based on oil viscosity and API rating. |
| Transmission Fluid Change Interval: | Every 30,000-60,000 miles or as per severe service schedule. Refer to manual for specific AT fluid type (e.g., ATF+4 for later models, Dexron III or equivalent for earlier 1999 models) and capacities. |
| Coolant Change Interval: | Typically every 30,000-50,000 miles or 2-4 years. Use Mopar HOAT coolant (50/50 mix). |
| Fluid Specifications | |
| Engine Oil Specification: | SAE 5W-30 for the 4.0L and 4.7L engines. Check manual for API classification (e.g., API SN or higher recommended). |
| Automatic Transmission Fluid: | ATF+4 (MS-9602) is often specified for later WJ models, but the 1999 model might specify Dexron III or equivalent. Crucially important to verify with the manual. |
| Transfer Case Fluid: | ATF+4 (MS-9602) or specific transfer case fluid depending on the NP242 or NP247 model. Refer to manual for correct specification. |
| Power Steering Fluid: | ATF+4 or Chrysler power steering fluid. |
| Brake Fluid Specification: | DOT 3 or DOT 4 brake fluid. |
| Rear Axle Fluid Specification: | Hypoid gear oil, typically SAE 75W-90 or 80W-90 GL-5. Specific type for limited-slip differentials will be noted. |
| Front Axle Fluid Specification: | Hypoid gear oil, typically SAE 75W-90 or 80W-90 GL-5. |
| Known Issues | |
| Common Issues: | Headliner sagging, interior plastic trim degradation, radiator leaks (especially with the 4.7L), heater core issues, minor electrical gremlins (e.g., window regulators), U-joint wear, exhaust manifold cracks (on 4.0L), potential for cylinder bore scoring on early 4.7L engines. The manual will provide detailed diagnostics for these. |
| Vehicle History | |
| Brand Heritage | |
| Brand Heritage: | Jeep has a long-standing heritage rooted in military vehicles (Willys Jeep) and has evolved into a brand synonymous with off-road capability and adventure. |
| Model Evolution | |
| Model Evolution Wj: | The WJ generation, introduced for the 1999 model year, replaced the ZJ Grand Cherokee. It featured a unibody construction, improved aerodynamics, and a more refined interior and ride quality. The 4.7L V8 was a major addition for this generation. |
| Production | |
| Production Years Wj: | 1999-2004 |
| Manufacturing Location: | Jefferson North Assembly Plant in Detroit, Michigan, USA |
| Awards & Recognition | |
| Recognitions | |
| Automotive Awards Wj: | The WJ Grand Cherokee was generally well-received for its comfort and capability, often appearing on 'best SUV' lists from automotive publications of the era. Specific awards would be documented in automotive history archives. |