🏷️ Basic Information Identification Make: Jeep Model: Cherokee Model Code: XJ Year: 1999 👋 Introduction Market Position Positioning: The Jeep Cherokee XJ established itself as a highly capable and durable compact SUV, particularly favored for its off-road prowess and iconic design. Competitive Analysis Competitors: Competed with vehicles like the Toyota 4Runner, Ford Explorer, and Chevrolet Blazer, often distinguishing itself with its unibody construction and legendary Selec-Trac or Command-Trac 4x4 systems. Key Features Features: Renowned for its robust build, excellent articulation for off-roading, comfortable ride for its class, and long-term reliability. 📋 Manual Details Coverage Areas Coverage: Complete official full service repair Page Count Page Count: N/A (typically 1000+ pages for this model's comprehensive manual) Manual Type Type: Service Repair Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine: Comprehensive diagnosis, repair, and overhaul procedures for all 1999 XJ engine variants. Transmission: Detailed service and repair information for automatic (e.g., 42RE, 30RH) and manual transmissions. Drivetrain: Service and repair of 4WD systems, transfer cases (e.g., NP231), axles, and differentials. Suspension Steering: Front and rear suspension (leaf springs, coil springs), steering system, alignment specifications, and repair. Brakes: Diagnosis, repair, and service for front disc and rear drum brakes, ABS (if equipped). Electrical: Wiring diagrams, component testing, diagnosis of lighting, ignition, charging, starting, and accessory systems. Body Chassis: Body panel removal and installation, interior trim, structural components, and corrosion prevention. HVAC: Air conditioning, heating, ventilation system diagnosis and repair. Fuel System: Fuel injection system, fuel pump, injectors, fuel filter replacement, and diagnostics. Cooling System: Radiator, water pump, thermostat, coolant specifications, and troubleshooting. Procedures Included Maintenance: Routine maintenance tasks such as oil changes, filter replacements, fluid checks, and lubrication. Troubleshooting: Diagnostic flowcharts and symptom-based troubleshooting for common and complex issues. Repair: Step-by-step instructions for component removal, installation, and repair across all vehicle systems. Rebuilds: Engine and transmission rebuild procedures, including torque specifications and clearances. Diagnostics: On-board diagnostics (OBD-II) code interpretation and systematic diagnostic strategies. Wiring Diagrams: Detailed electrical schematics for all circuits and components. Technical Depth Depth: Comprehensive, covering from basic maintenance to advanced engine and transmission overhauls. 📊 Manual Specifications File Format File Type: Likely PDF, optimized for searchability and printing. Print Quality Quality: High-resolution scans or original digital files, ensuring clarity of text and diagrams. Binding Type Binding: N/A (for digital format); typically spiral or perfect bound for print. Paper Type Paper: N/A (for digital format); typically high-quality paper for print versions. ⚙️ Engine Specifications Primary Engine Engine Variant 1: 4.0L Inline-6 (242 cu in) OHV MPI Engine Code 1: ERH Displacement 1: 3956 cc Bore X Stroke 1: 3.875 in x 3.580 in (98.4 mm x 90.9 mm) Compression Ratio 1: 8.8:1 Horsepower 1: 180-190 hp @ 4600 rpm (approx.) Torque 1: 220-235 lb-ft @ 3200 rpm (approx.) Optional Engine Engine Variant 2: 2.5L Inline-4 (150 cu in) OHV MPI Engine Code 2: ENF Displacement 2: 2469 cc Horsepower 2: 125 hp @ 4800 rpm (approx.) Torque 2: 150 lb-ft @ 3200 rpm (approx.) Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline Fuel Octane Rating: 87 octane (minimum recommended) 🔧 Transmission Standard Transmission Type Std: 4-speed Automatic (42RE, 30RH) Optional Transmission Type Opt: 5-speed Manual (AX-15, NV3550 for later models - check specific build) Features Transfer Case: Selec-Trac (full-time 4WD) or Command-Trac (part-time 4WD) NV231 transfer case. Gear Ratios 42Re: First: 2.74, Second: 1.57, Third: 1.00, Reverse: 2.20 (typical) 📐 Dimensions Exterior Wheelbase: 101.4 inches (2576 mm) Length: 164.1 inches (4168 mm) Width: 70.5 inches (1791 mm) Height: 63.7 inches (1618 mm) Ground Clearance: Approx. 8.7 inches (221 mm) depending on configuration. Cargo Cargo Volume Behind Rear Seat: 33.5 cubic feet (0.95 cubic meters) (approx.) Cargo Volume With Rear Seat Folded: 69.0 cubic feet (1.95 cubic meters) (approx.) Weights Curb Weight: 3400-3800 lbs (1542-1724 kg) depending on configuration. Gross Vehicle Weight Rating: Approx. 4700-5200 lbs (2132-2359 kg) 🛡️ Safety Features Ratings NHTSA Driver Side Impact: Not rated for 1999 model year. IIHS Frontal Impact: Good (for 1999-2001 models). Active Features ABS: Available on some models (rear-wheel ABS typically). Passive Features Airbags: Driver and passenger front airbags. Seatbelts: Front and rear seat belts with pretensioners for front occupants. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with cassette player, optional CD player. Speaker configurations varied by trim level. Driver Assistance Cruise Control: Standard on most trim levels. Connectivity Power Accessories: Power windows, power door locks, power mirrors available on higher trims. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles (4,800 km) or 3 months (typical for this era, but consult manual for specific recommendations). Engine Coolant Flush: Every 30,000 miles (48,000 km) or 24 months. Transmission Fluid Change: Every 30,000-60,000 miles (48,000-96,000 km) depending on usage (more frequent for severe service). Spark Plug Replacement: Every 60,000-100,000 miles (96,000-160,000...