🏷️ Basic Information Identification Make: Jeep Model: Cherokee Model Codes: YJ, XJ Year: 1990 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent mechanics, and Jeep owners seeking to maintain and repair their vehicles. Competitive Analysis Value Proposition: Provides comprehensive, cost-effective DIY repair solutions, saving money on professional mechanic fees. Key Features Accessibility: Instant download access for immediate use, anytime, anywhere. Comprehensiveness: Covers all major systems and repair procedures for the specified model year. Empowerment: Enables users to understand vehicle intricacies and perform repairs independently. Convenience: Downloadable format provides instant access, eliminating the need for physical searches. 📋 Manual Details Coverage Areas Primary Coverage: All aspects of service, repair, and maintenance Diagnostic Coverage: Troubleshooting and diagnostics Component Coverage: Engine, transmission, brakes, suspension, steering, fuel system, electrical system, chassis, body, emissions, cooling, lubrication, restraint system, axles Specific Sections: General Maintenance, Troubleshooting, Engine, Transmission, Brakes, Wiring Diagrams, Electrical, Suspension, Lubrication, Steering, Cooling, Fuel Injection, Emission System, Engine Control, Chassis, Body, Restraint System, Axle. Page Count Estimated Pages: Varies by specific Jeep Cherokee 1990 variant and repair area, but comprehensive manuals typically range from 1,500 to 3,000+ pages. Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Management: Detailed coverage of engine disassembly, assembly, inspection, and repair, including tuning and performance adjustments. Powertrain: Comprehensive service and repair procedures for transmissions (manual and automatic), transfer cases, and axles. Braking System: Detailed instructions for brake component inspection, replacement, and bleeding for both front and rear brakes. Electrical System: In-depth electrical system diagnosis and repair, including wiring diagrams, component testing, and troubleshooting of electrical faults. Suspension Steering: Procedures for servicing and repairing suspension components (shocks, springs, bushings) and steering systems (rack and pinion, linkage). Fuel And Emission: Coverage of fuel injection systems, fuel pumps, injectors, fuel tanks, and emission control systems, including evaporative emission controls and catalytic converters. Cooling And Lubrication: Maintenance and repair of the cooling system (radiator, thermostat, water pump) and lubrication system (oil pump, oil filter). Engine Control System: Detailed information on the engine control unit (ECU), sensors, and actuators. Restraint System: Information on seat belts and potentially early airbag systems if equipped. Chassis Body: Coverage of frame, body panels, interior trim, and related components. Procedures Included Maintenance: Routine maintenance schedules, fluid changes, filter replacements, belt inspections, and tune-up procedures. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and complex vehicle issues. Repair Rebuild: Step-by-step instructions for disassembling, repairing, and reassembling major vehicle components and systems. Wiring Diagrams: Detailed electrical wiring schematics for all vehicle systems. Refurbish Renovate: Instructions for restoring and renovating components for long-term reliability. Disassembly Reassembly: Detailed, step-by-step instructions for the removal and installation of all vehicle parts. Technical Depth Diagnostic Level: Advanced diagnostics, including component testing and interpretation of diagnostic trouble codes (if applicable for the era). Rebuild Level: Comprehensive rebuild procedures for engines, transmissions, and other major mechanical components. Bodywork: Includes procedures for chassis and body repairs, including panel replacement and alignment. Specification Data: Includes torque specifications, clearances, and measurement data for all major components. 📊 Manual Specifications File Format Format: PDF Software Requirements: Adobe PDF Reader, WinZip (for decompression if applicable) Platform Compatibility: Windows and Mac operating systems Searchability: PDF format allows for text-based searching of specific terms and components. Document Quality: High-resolution digital format suitable for viewing on various devices and printing. Print Quality Printability: Printable pages for convenient workshop use. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Options: Likely includes the 4.0L Inline-6 (AMC 242) and potentially the 2.5L Inline-4 (AMC 150) engine. Engine Displacement 2 5L: 2.5 Liters (150 cu in) Engine Displacement 4 0L: 4.0 Liters (242 cu in) Performance 4.0L Horsepower Est: Approximately 177 hp @ 4,750 rpm 4.0L Torque Est: Approximately 220 lb-ft @ 3,000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) 🔧 Transmission Standard Manual Transmission: Likely the AX-5 5-speed manual transmission Optional Automatic Transmission: Likely the AW-4 4-speed automatic transmission Features Transfer Case: Selectable 4WD system, often with a New Process 231 (NP231) transfer case. 📐 Dimensions Exterior Wheelbase: YJ: 93.4 inches; XJ: 103.4 inches Weights Curb Weight Est: Approximately 3,000 - 3,500 lbs, depending on configuration. 🛡️ Safety Features Ratings Crash Test Info: Safety ratings for this era are less standardized than modern vehicles. Refer to specific NHTSA data if available, though likely limited for 1990 models. Active Features Brakes: Front disc, rear drum brakes standard; some models may have rear disc option. Passive Features Seat Belts: Standard front and rear seat belts. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with cassette player; optional CD player in some trims. Driver Assistance ABS: Rear Anti-lock Braking System (ABS) was optional on some models. Connectivity Connectivity Features: Minimal to none by modern...