🏷️ Basic Information Identification Make: Jeep Model: Cherokee (XJ) Year: 1990 Codes Chassis Code: XJ Platform: Jeep Cherokee (XJ) platform 👋 Introduction Market Position Segment: Compact SUV / Off-road vehicle Reputation: Known for its robust off-road capabilities, compact size, and durability Competitive Analysis Competitors 1990: Toyota 4Runner, Nissan Pathfinder, Ford Bronco II, Chevrolet S-10 Blazer Key Features Chassis Design: Unibody construction, a departure from traditional body-on-frame SUVs of the era Off Road Capability: Solid front and rear axles, available part-time four-wheel-drive systems Engine Options: Renowned for the durable and powerful 4.0L inline-6 engine 📋 Manual Details Coverage Areas Primary Coverage: Repair and Service Page Count Estimated Page Count: 1000+ Manual Type Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: 4.0L AMC 242 inline-6, 2.5L AMC 150 inline-4 Transmission: AW4 Automatic Transmission, AX-5 Manual Transmission Drivetrain: Four-wheel drive (Command-Trac, Selec-Trac), Rear-wheel drive Suspension: Front Leaf Spring Solid Axle, Rear Leaf Spring Solid Axle (leaf sprung) Steering: Power Steering System Brakes: Front Disc Brakes, Rear Drum Brakes, Power Brake System Electrical: Charging System, Ignition System, Lighting System, Power Accessories, Instrument Cluster, Fuses and Relays Cooling System: Radiator, Fan, Water Pump, Thermostat Fuel System: Fuel Pump, Fuel Injectors, Fuel Filter, Fuel Tank Exhaust System: Manifold, Catalytic Converter, Muffler Body And Frame: Body Panels, Doors, Hood, Tailgate, Frame Diagnosis Procedures Included Maintenance: Oil Changes, Filter Replacements, Spark Plug Replacement, Belt Inspection/Replacement, Brake Pad Replacement, Fluid Checks/Changes Diagnostics: Troubleshooting Guides, Symptom-Based Diagnosis, Component Testing Repair: Engine Rebuilds, Transmission Overhauls, Suspension Component Replacement, Brake System Repair, Electrical Component Repair Calibration: Ignition Timing, Fuel System Adjustments Disassembly And Assembly: Step-by-step instructions for major component removal and installation Technical Depth Depth: Comprehensive (from basic maintenance to full engine/transmission rebuilds) Target Audience: Professional Technicians and Experienced DIYers Diagnostic Tools: Information on utilizing common mechanic's tools and diagnostic procedures 📊 Manual Specifications File Format Format: Searchable PDF Print Quality: High-resolution scans, clear diagrams and text Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code 1: AMC 242 Engine Description 1: 4.0L Overhead Valve Inline-6 Displacement 1: 3960 cc (242 cubic inches) Bore X Stroke 1: 3.875 in x 3.570 in (98.4 mm x 90.7 mm) Compression Ratio 1: 8.8:1 Horsepower 1: 177 hp @ 4700 rpm (approx.) Torque 1: 220 lb-ft @ 3200 rpm (approx.) Secondary Engine Engine Code 2: AMC 150 Engine Description 2: 2.5L Overhead Valve Inline-4 Displacement 2: 2472 cc (150 cubic inches) Bore X Stroke 2: 3.875 in x 3.375 in (98.4 mm x 85.7 mm) Compression Ratio 2: 8.8:1 Horsepower 2: 125 hp @ 4600 rpm (approx.) Torque 2: 150 lb-ft @ 2400 rpm (approx.) Fuel System Fuel Delivery 1: Multi-Port Fuel Injection (MPFI) Fuel Delivery 2: Multi-Port Fuel Injection (MPFI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) 🔧 Transmission Standard Transmission Type Std: AW4 Automatic Transmission (4-speed) Optional Transmission Type Opt: AX-5 Manual Transmission (5-speed) Features Aw4 Features: Electronically controlled, Lock-up torque converter Ax5 Features: Robust design for off-road use Fluid Specifications Aw4 Fluid Type: ATF+3 or ATF+4 (Refer to manual for specific 1990 recommendation, often Dexron II/III compatible) Ax5 Fluid Type: GL-3 or GL-4 Gear Oil (e.g., 75W-90) Fluid Capacities Aw4 Capacity: Approx. 8.5 quarts (8.0 L) for a full refill Ax5 Capacity: Approx. 2.5 quarts (2.4 L) 📐 Dimensions Exterior Wheelbase: 101.4 inches (2576 mm) Length: 167.5 inches (4255 mm) Width: 69.4 inches (1763 mm) Height: 63.7 inches (1618 mm) Ground Clearance: Approx. 8.5 inches (216 mm) at lowest point (varies with options) Weights Curb Weight Est: 3,300 - 3,600 lbs (1497 - 1633 kg) depending on configuration Gross Vehicle Weight Rating Est: 4,500 - 4,800 lbs (2041 - 2177 kg) Towing Capacity Est: Up to 5,000 lbs (2268 kg) with proper equipment 🛡️ Safety Features Ratings NHTSA Crash Tests: Information typically not readily available or standardized in the same way as modern vehicles. Manual will detail safety systems. Active Features Braking System: Front disc, rear drum; power assisted ABS: Anti-lock Braking System (ABS) was optional on some models/trims Passive Features Seat Belts: Front lap and shoulder belts, rear lap belts Rollover Protection: Reinforced roof structure inherent to the unibody design 💡 Technology Features Infotainment Radio Options: AM/FM radio, optional cassette player, optional CD player (less common) Speakers: Typically 4 or 6 speakers Driver Assistance Cruise Control: Optional Connectivity Power Windows Locks: Optional on higher trims 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 miles or 6 months (refer to manual for precise interval based on driving conditions) Transmission Fluid Change: Every 30,000 - 60,000 miles (AW4), Every 30,000 miles (AX-5) - check manual for specifics Coolant Flush: Every 24,000 - 30,000 miles or 2 years Spark Plug Replacement: Every 30,000 - 60,000 miles (depending...