🏷️ Basic Information Identification Make: Jeep Model: Wrangler Generation: YJ Years Covered: 1987-1995 Codes Model Code: YJ 👋 Introduction Market Position Positioning: The Jeep Wrangler YJ (1987-1995) represents the second generation of the iconic Jeep Wrangler, marking a significant evolution from the CJ series with a move towards more modern automotive standards while retaining its core off-road capability. Competitive Analysis Competitors: Competed in the compact SUV and off-road vehicle segment against models like the Toyota 4Runner, Nissan Pathfinder, and Ford Bronco II, though the Wrangler maintained a more focused off-road identity. Key Features Defining Features: Distinctive square headlights (a hallmark of the YJ generation), solid front axle (initially), coil springs replacing leaf springs on the front axle for improved ride comfort, and a focus on ruggedness and off-road prowess. Manual Value Proposition Value: This comprehensive workshop manual provides the exact information needed to maintain, diagnose, and repair any aspect of the Jeep Wrangler YJ, empowering owners and mechanics to keep these capable vehicles in optimal condition. 📋 Manual Details Coverage Areas All Models And Trims: Yes, covers all models and trim levels within the 1987-1995 YJ generation. Repair Scope: Complete A-Z repairs, from basic maintenance to complex overhauls. Page Count Estimated Page Count: Varies by specific manual edition; typically 1000+ pages for complete workshop manuals. Manual Type Type: Complete Workshop Service Repair Manual Language Language: English Format Format: Likely available in Print and/or Digital (PDF) format. Specific product listing should confirm. 📖 Manual Coverage Systems Covered Powertrain: Engine, fuel system, ignition system, exhaust system, cooling system, lubrication system, manual and automatic transmissions, transfer case, axles, drivelines. Chassis: Suspension (front and rear leaf springs, shock absorbers, sway bars), steering system (power steering, steering column), braking system (front discs, rear drums/discs depending on model year, parking brake), wheels and tires. Electrical: Battery, charging system, starting system, lighting system, instrument panel, ignition, anti-theft systems (if applicable), wiring diagrams, fuses, relays, power windows, power locks, wipers, horn. Body And Frame: Body panels, doors, hood, tailgate, bumpers, frame, interior trim, seats, convertible top, hardtop components, glass, mirrors. Procedures Included Maintenance: Routine service, oil changes, filter replacements, fluid checks and changes, lubrication, tune-ups, inspections. Diagnostics And Troubleshooting: Step-by-step diagnostic procedures for all major systems, including symptom-based troubleshooting guides. Repair And Overhaul: Detailed procedures for component removal, disassembly, inspection, repair, assembly, and reinstallation. Special Tools And Techniques: Identification and usage instructions for specialized tools required for specific repairs. Technical Depth Depth: Comprehensive, covering all aspects of vehicle repair and maintenance, suitable for professional technicians and experienced DIYers. Specificity: Highly specific to the Jeep Wrangler YJ models, not generic information. 📊 Manual Specifications File Format Digital Format Details: If PDF: Searchable text, high-resolution images and diagrams, printable pages. Print Quality Print Quality Details: If printed: Clear, legible text and diagrams, durable paper, high-quality binding. Binding Type Binding Type Details: If printed: Likely spiral-bound or perfect-bound for durability and ease of use on a workbench. Paper Type Paper Type Details: If printed: Durable, grease-resistant paper suitable for automotive environments. ⚙️ Engine Specifications Primary Engine Engine 1: 2.5L (150 ci) AMC 150 I4 Engine 1 Power: Approx. 121-130 hp @ 4000-4500 rpm Engine 1 Torque: Approx. 170-181 lb-ft @ 2000-2500 rpm Optional Engine Engine 2: 4.0L (242 ci) AMC 242 I6 'Power Tech' Engine 2 Power: Approx. 177-190 hp @ 4700-4750 rpm Engine 2 Torque: Approx. 220-235 lb-ft @ 3000-3250 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline (87 Octane recommended) Ignition System Ignition Type: Distributorless Ignition System (DIS) on later 4.0L models; distributor-based on earlier models and 2.5L. Engine Codes 4 0L Engine Code: AMC 242 2 5L Engine Code: AMC 150 🔧 Transmission Standard Transmission Manual Transmission: Aisin-Warner AX-5 (5-speed manual, typically with 2.5L and early 4.0L) Optional Transmission Automatic Transmission: Chrysler 30-42LE (4-speed automatic, later introduced with 4.0L) Transfer Case Transfer Case Type: New Process NP231 Command-Trac (2WD/4WD Part-Time) Transmission Features Gear Ratios Ax5: Example: 3.95:1 (1st), 2.10:1 (2nd), 1.41:1 (3rd), 1.00:1 (4th), 0.75:1 (5th), 2.72:1 (Reverse) - Varies by specific model year. Fluid Type Manual: Manual Transmission Fluid (MTF), typically GL-3 or GL-4 rated, e.g., Mopar Manual Transmission Lubricant. Fluid Type Automatic: ATF+3 (or equivalent specification for the 30-42LE transmission). 📐 Dimensions Exterior Dimensions Wheelbase: 93.4 inches (2372 mm) Length: Approx. 151.5 inches (3848 mm) Width: Approx. 66.7 inches (1694 mm) Height: Approx. 65.7 inches (1669 mm) Weights Curb Weight: Approx. 3,000-3,300 lbs (1360-1497 kg), depending on configuration. Gross Vehicle Weight Rating: Approx. 4,500 lbs (2041 kg) 🛡️ Safety Features Ratings NHTSA Front Crash Test Driver: Not rated for side impact or rollover protection under modern NHTSA standards for this era. Frontal impact ratings were generally less comprehensive than today. IIHS Ratings: Similar limitations as NHTSA; focus was on basic structural integrity and occupant protection for the period. Active Features ABS:...