🏷️ Basic Information Identification Make: Jeep Model: Cherokee XJ Year: 1990 Codes Chassis Code: XJ 👋 Introduction Market Position Positioning: The Jeep Cherokee XJ is a compact SUV known for its ruggedness and off-road capability. This manual caters to owners and mechanics who maintain and repair this iconic vehicle. Competitive Analysis Competition: Competed against vehicles like the Ford Bronco II, Chevrolet S-10 Blazer, and Toyota 4Runner. Its unibody construction set it apart. Key Features Vehicle Strengths: Compact size, excellent off-road capability, durable powertrain options, distinctive styling. Manual Value Proposition Value: Provides comprehensive diagnostic and repair information, empowering owners to perform maintenance and repairs effectively, saving time and money. 📋 Manual Details Coverage Areas Systems Covered: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Body, Fuel System, Emission Control Page Count Estimated Pages: 1000+ Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, internal component diagnosis and repair, timing, cooling system, lubrication system Fuel System: Fuel injection system diagnosis, fuel pump, injectors, pressure regulator, fuel tank service Emission Control: Catalytic converter, oxygen sensors, EGR system, evaporative emission control Drivetrain: Transfer case service and repair (Command-Trac, Selec-Trac), differential diagnosis and rebuild, axle components Suspension: Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment specifications Steering: Power steering system diagnosis and repair, steering gearbox, tie rods, steering column Brakes: Front and rear brake systems (disc and drum), hydraulic system, ABS diagnosis (if equipped), parking brake Electrical System: Battery, charging system, starting system, ignition system, lighting, fuses, relays, wiring diagrams HVAC: Air conditioning system, heating system, blower motor, controls, refrigerant service Body Interior: Body panel repair, door mechanisms, interior trim, seats, glass replacement Body Exterior: Bumpers, grille, fenders, doors, tailgate, exterior trim, paint and body repair Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks, tire rotations, spark plug replacement Troubleshooting: Diagnostic charts, symptom-based troubleshooting guides, electrical diagnostic procedures Repair Procedures: Step-by-step instructions for component removal, installation, and repair Diagnostics: OBD-I code reading and interpretation, component testing procedures Technical Depth Depth: Comprehensive, covering basic maintenance to complete engine and transmission rebuilds. Detailed diagnostic procedures and wiring diagrams. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, clear text and images suitable for printing Binding Type Binding Type: Not Applicable (Digital) Paper Type Paper Type: Not Applicable (Digital) Searchability Searchable Text: Yes ⚙️ Engine Specifications Primary Engine Engine Code: 2.5L AMC 150 (4.0L variant also common) Displacement Liters: 2.5 Engine Type: Inline-4, Overhead Valve (OHV) Performance Horsepower Hp: 125 Torque Lb Ft: 140 Fuel System Injection Type: Multi-point Fuel Injection (MPI) Cooling System Coolant Type: Chrysler/Mopar Antifreeze/Coolant (5/150) Lubrication System Oil Type: SAE 10W-30 or 10W-40 Oil Capacity Quarts: 5 Ignition System Ignition Type: Distributorless Ignition System (DIS) or distributor-based systems depending on specific configuration 🔧 Transmission Standard Transmission Type: 5-Speed Manual (AX-5) Optional Transmission Type: 3-Speed Automatic (AW4) Transmission Type Alternative: 4-Speed Automatic (Select-A-400 - less common on 1990 models, but can be a swap) Features Automatic Transmission Fluid: Dexron-III (or equivalent) Manual Transmission Fluid: Manual Transmission Fluid (MTF) - consult manual for specific viscosity Transfer Case Transfer Case Options: Command-Trac (231J), Selec-Trac (242J) Transfer Case Fluid: ATF+4 or equivalent 📐 Dimensions Exterior Wheelbase Inches: 101.4 Length Inches: 167.5 Width Inches: 70.3 Height Inches: 62.8 Weights Curb Weight Lbs: 3250-3500 (approx., depending on configuration) Gross Vehicle Weight Rating Gvwr Lbs: 4500-4700 (approx.) Cargo Cargo Volume Cu Ft: 30.0 (behind rear seat) 🛡️ Safety Features Ratings NHTSA Rollover Rating: N/A (Not tested extensively by modern NHTSA standards) Active Features ABS Availability: Optional (rear-wheel ABS) Passive Features Airbags: Driver-side airbag (standard for 1990 MY) Seatbelts: Front and rear seat belts 💡 Technology Features Infotainment Audio System: AM/FM Radio with Cassette Player, optional CD player Speakers: 4-speaker or 6-speaker system Driver Assistance Cruise Control: Optional Instrument Cluster: Analog gauges for speedometer, tachometer, fuel, engine temperature, oil pressure; warning lights for various systems Connectivity Connectivity Features: None (Pre-modern connectivity era) 🔧 Maintenance Service Intervals Oil Change Interval: 3,000 miles or 3 months Air Filter Replacement: 15,000 miles or 12 months Spark Plug Replacement: 30,000 miles Fluid Specifications Brake Fluid Type: DOT 3 Power Steering Fluid: ATF+3 or Mopar Power Steering Fluid Coolant Capacity Quarts: 12.5 Known Issues Common Problems: Radiator leaks, head gasket issues (especially on 4.0L), rear main seal leaks, rust (particularly on unibody frame rails and rocker panels), exhaust manifold cracks (4.0L) Recommended Filters Oil Filter Part Number: PH8A / Mopar MO-090 (example, verify for specific engine) Air Filter Part Number: AF1716 (example, verify for specific engine) 📚 Vehicle History Brand Heritage Jeep Legacy: Jeep's heritage is rooted in robust, go-anywhere capability, established with its military origins in WWII. Model Evolution Xj Introduction: Introduced in 1984, the XJ Cherokee marked a...