🏷️ Basic Information Identification Make: Jeep Model: Comanche Year: 1988 Vehicle Body Style: Pickup Truck Chassis Code: XJ (light truck platform) Vin Code: 1J4 Generation Generation: First Generation (SJ/XJ platform based) Generation Years: 1986-1992 👋 Introduction Market Position Market Segment: Compact Pickup Truck Competitors 1988: Ford Ranger, Chevrolet S-10/Blazer, Toyota Pickup, Nissan Hardbody Competitive Analysis Jeep Comanche Advantage: Renowned Jeep off-road capability, rugged XJ-based unibody construction, available straight-six engine for power. Key Features Key Features Manual: Authoritative OEM content, detailed illustrations, step-by-step repair guidance, comprehensive system coverage. Value Proposition: Empowers owners to perform maintenance and repairs, saving significant labor costs compared to dealership service. Offers deep understanding of vehicle systems for informed decisions. Digital Advantage: Print-on-demand flexibility, instant access, ability to back up for data security (unlike some DRM-restricted manuals). 📋 Manual Details Coverage Areas Covered Models: 1988 Jeep Cherokee, Comanche, Wagoneer, Wrangler Engine Coverage: 2.5L AMC I4, 4.0L AMC I6 Transmission Coverage: 4-speed automatic (AW4), 5-speed manual (AX-5, AX-15) Drivetrain Coverage: 2WD, 4WD (Command-Trac, Selec-Trac) Page Count Estimated Page Count: Extensive (typical factory service manuals exceed 800 pages) Manual Type Manual Type: Factory Service Repair Manual Intended Audience: Dealership Technicians, Professional Mechanics, Enthusiast DIYers Language Language: English Format Format: Digital Download (.PDF) Delivery Method: CD-ROM ONLY (Original, enhanced digital delivery) Digital Features: Printable, Searchable Text, Zoomable 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Engine Fuel, Engine Cooling, Engine Lubrication, Engine Ignition, Emission Control, Exhaust System, Automatic Transmission, Manual Transmission, Transfer Case Chassis: Suspension (Front & Rear), Steering System, Brakes (Hydraulic & Parking), Wheels & Tires, Driveline (Axles, Driveshafts) Electrical: Battery, Starting System, Charging System, Ignition System, Lighting (Headlamps, Taillamps, Interior), Instrument Panel Systems, Audio Systems, Horn Systems, Turn Signal and Hazard Warning Systems, Wipers and Washer Systems, Vehicle Speed Control System, Passive Restraint Systems, Electrically Heated Systems, Power Lock Systems, Power Window Systems, Power Mirror Systems, Chime/Buzzer Warning Systems, Overhead Console Systems Body: Frame and Bumpers, Body Panels, Doors, Glass, Interior Trim, Seating Comfort And Climate: Heating and Air Conditioning (HVAC) Procedures Included Diagnostic Procedures: Troubleshooting Charts, Symptom-based Diagnosis, Diagnostic Trouble Codes (DTCs), Wiring Diagrams for Electrical Diagnostics Repair Procedures: Component Removal and Installation, Component Disassembly and Assembly, Reassembly Steps with Torque Specifications Maintenance Procedures: Fluid Checks and Changes, Filter Replacements, Lubrication Schedules, Belt and Hose Inspection/Replacement Technical Specifications: Torque Values, Clearances, Fluid Capacities, Electrical Specifications, Performance Data Technical Depth Depth: Comprehensive Factory Level Detail Illustrations: Photographs, Exploded Views, Line Drawings, Wiring Diagrams Diagnostic Tools: Mentions of required special tools, although specific tool part numbers might not be listed for generic tools. 📊 Manual Specifications File Format File Format: .PDF Required Software: Adobe Acrobat Reader (latest version recommended) Print Quality Printability: High Resolution, Suitable for Professional Printing Binding Type Binding Type Digital: N/A (Digital) Paper Type Paper Type Digital: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine 1: 2.5L AMC I4 (4-2.5L) Engine 1 Description: Overhead Valve (OHV) inline four-cylinder Engine 1 Hp: 119 hp @ 4,000 rpm Engine 1 Torque: 173 lb-ft @ 2,000 rpm Engine 2: 4.0L AMC I6 (4.0L) Engine 2 Description: Overhead Valve (OHV) inline six-cylinder, renowned for its torque and durability Engine 2 Hp: 177 hp @ 4,000 rpm Engine 2 Torque: 220 lb-ft @ 2,000 rpm Fuel System Fuel System Type: Electronic Fuel Injection (EFI) - Multi-port fuel injection Recommended Fuel: 87 Octane Unleaded Gasoline Performance Ignition System: Electronic ignition, distributorless ignition system (DIS) on some later models, but likely distributor for '88 Emission Control: Catalytic Converter, Oxygen Sensors, Exhaust Gas Recirculation (EGR) 🔧 Transmission Standard Standard Transmission Type: 5-speed manual (AX-5 or AX-15) Optional Optional Transmission Type: 4-speed automatic (AW4 - Chrysler/Aisin Warner collaboration) Features Transmission Fluid Spec Auto: ATF+3 (Chrysler spec, equivalent to Dexron II/III in practice for this era) Transmission Fluid Spec Manual: GL-3 or GL-4 gear oil (typically SAE 75W-90 or 80W-90) Transfer Case Options: Selec-Trac (2WD/4WD Part-time) or Command-Trac (4WD Part-time) 📐 Dimensions Exterior Wheelbase: 113.0 inches (2870 mm) Overall Length: 174.7 inches (4437 mm) (Short Bed) Overall Width: 70.3 inches (1786 mm) Overall Height: 65.9 inches (1674 mm) Weights Curb Weight Approx: 3,300 - 3,700 lbs (1497 - 1678 kg) depending on configuration Towing Capacity Approx: Up to 5,000 lbs (2268 kg) with proper equipment and engine 🛡️ Safety Features Ratings NHTSA Crash Test Ratings: Not comprehensively rated by modern standards, but generally considered robust for its era. Active Features Active Safety Features: Four-wheel disc or front disc/rear drum brakes depending on configuration, Power steering Passive Features Passive Safety Features: Seat belts (lap and shoulder front, lap rear), Energy-absorbing steering column 💡 Technology Features Infotainment Infotainment System Type: Basic AM/FM Radio, Cassette Player (optional CD player might have been available on higher trims). Speaker Configuration: Typically 2 or 4 speakers, depending on trim level. Driver Assistance Driver Assistance Features: Vehicle Speed Control (Cruise Control) available as...