🏷️ Basic Information Identification Make: Jeep Model: Comanche Model Code: MJ Body Style: Pickup Truck Generation Generation Name: First Generation Generation Years: 1984-1992 (MJ) Codes Chassis Code: MJ 👋 Introduction Market Position Segment: Compact Pickup Truck Target Audience: Jeep Comanche owners, DIY mechanics, restoration enthusiasts Competitive Analysis Key Competitors: Ford Ranger, Chevrolet S-10, Nissan Hardbody, Toyota Pickup Unique Selling Points: Combined Jeep's robust off-road heritage with truck utility, available Command-Trac 4x4 system, unibody construction shared with XJ Cherokee Key Features Manual Utility: Provides essential information for maintenance, repair, and troubleshooting to keep the Comanche in optimal condition. Manual Value: Empowers owners to perform their own repairs, saving on labor costs and ensuring quality workmanship. 📋 Manual Details Coverage Areas Covered Years: 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996 Trim Levels Covered: Pioneer, Chief, Laredo, XJ Sport, Eliminator, Sport, Base Page Count Estimated Page Count: 1000+ Manual Type Manual Type: Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Driveline, Fuel System, Cooling System, Exhaust System Chassis: Suspension (Front & Rear), Steering, Brakes (Front & Rear), Wheels & Tires Electrical: Wiring Diagrams, Lighting, Instruments, Charging System, Starting System, Ignition System, Audio System, Power Accessories Body And Frame: Body Panels, Doors, Glass, Interior Trim, Chassis Frame, Bumpers HVAC: Heating, Ventilation, Air Conditioning Procedures Included Maintenance: Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks & Changes, Tune-Ups Troubleshooting: Diagnostic Flowcharts, Symptom-Based Troubleshooting, Common Faults & Solutions Repair: Engine Rebuild, Transmission Overhaul, Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis & Repair, Body Panel Repair Diagnostics: OBD-I (On-Board Diagnostics) Code Retrieval & Interpretation, Sensor Testing, Actuator Testing Component Replacement: Engine, Transmission, Transfer Case, Axles, Brakes, Suspension, Steering, Alternator, Starter, Radiator, A/C Compressor, Body Panels, Doors Technical Depth Depth Of Coverage: Comprehensive (from basic maintenance to complete engine/transmission rebuilds) Diagnostic Capability: Advanced (includes wiring diagrams, sensor specifications, troubleshooting guides) Assembly Disassembly: Detailed step-by-step procedures with torque specifications and diagrams 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable Print Quality: High-resolution, printable Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Options Early: 2.5L AMC I4 (150 ci), 2.8L GM V6 (173 ci) Engine Options Later: 4.0L AMC I6 (242 ci), 4.2L AMC I6 (258 ci) Performance 4.0L I6 Horsepower: Approx. 173-180 hp 4.0L I6 Torque: Approx. 220-225 lb-ft 2.5L I4 Horsepower: Approx. 112-125 hp 2.5L I4 Torque: Approx. 135-150 lb-ft Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) for 4.0L and 4.2L, Throttle Body Injection (TBI) or MPI for 2.5L and 2.8L (depending on year) Fuel Type: Unleaded Gasoline Engine Management Ignition System: Electronic Ignition (Distributor-based) Engine Control Unit: ECU/PCM (specifics vary by year and engine) 🔧 Transmission Standard Standard Transmission Early: 3-speed Automatic (e.g., Chrysler A904/A999), 4-speed Manual Standard Transmission Later: 4-speed Automatic (e.g., AW4), 5-speed Manual (e.g., AX-15) Optional Optional Transmission Early: 4-speed Manual Optional Transmission Later: 4.0L often paired with AW4 automatic and NP242 transfer case Features Transfer Case Options: Selec-Trac (2WD/4WD Part-Time - NP231), Command-Trac (2WD/4WD Full-Time - NP242) Fluid Specifications Automatic Transmission Fluid: ATF+3 or ATF+4 (check manual for exact spec based on transmission type) Manual Transmission Fluid: API GL-4 or GL-5 gear oil (viscosity varies by temperature and transmission type) 📐 Dimensions Exterior Wheelbase Shortbed: 113.0 inches Wheelbase Longbed: 125.0 inches Bed Length Short: 6.0 ft Bed Length Long: 7.5 ft Weights Curb Weight Range: Approx. 3,300 - 3,800 lbs Gross Vehicle Weight Rating Gvwr: Approx. 4,500 - 5,500 lbs (varies by configuration) 🛡️ Safety Features Ratings NHTSA Ratings: No formal standardized ratings for this era, but generally considered robust for its class. Active Features Braking System: Front disc brakes, Rear drum brakes (Rear disc optional on some later models) Passive Features Seat Belts: Lap and shoulder belts (front), Lap belts (rear) Airbags: Not standard on early models, driver airbag introduced in later years (check specific model year). 💡 Technology Features Infotainment Audio System: Factory AM/FM/Cassette player standard, optional CD player on later models. Speakers: Typically 4-speaker system (dash and door). Driver Assistance ABS: Anti-lock Braking System (ABS) became optional/standard on rear wheels in later model years. Connectivity Connectivity Features: Basic functionality for its era; no modern Bluetooth or USB connectivity without aftermarket modifications. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles or 6 months, whichever comes first (depending on driving conditions and oil type). Transmission Service Interval: Every 30,000-60,000 miles (check manual for specific transmission type and fluid). Coolant Flush Interval: Every 30,000 miles or 2 years. Tune Up Intervals: Spark plugs and filters typically at 30,000-60,000 miles (engine dependent). Fluid Specifications Engine Oil Type: API Service SJ or higher; 10W-30 or 10W-40 recommended (check manual for specific engine). Coolant Type: Ethylene Glycol based antifreeze (e.g.,...