🏷️ Basic Information Identification Make: Jaguar Model: XJS Year: 1991 Codes Chassis Code: XJ-S 👋 Introduction Market Position Target Audience: Jaguar XJS owners, mechanics, and automotive enthusiasts. Competitive Analysis Advantage Over Print: Instant access, searchability, often more up-to-date, lower cost, accessible on multiple devices. Key Features Licensing: Officially licensed, derived from OE (Original Equipment) materials. Accessibility: Compatible with PC, laptop, smartphone, tablet via web browser. Access Duration: 1 Year subscription with option for renewal discounts. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair information for the 1991 Jaguar XJS. Specific Systems Covered: Engine, Transmission, Fuel System, Cooling System, Ignition System, Electrical System, Braking System, Suspension, Steering, HVAC, Bodywork, Body Electrical. Page Count Estimated Page Count: Extensive (exact digital equivalent varies by platform, but represents a full factory manual). Manual Type Manual Type: Service and Repair Manual Software Language Language: English Format Format: Online Software/Digital Access 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed overhaul, diagnostics, and repair for V12 engine. Engine Management: Fuel injection (EFI) system, ignition system, and sensor diagnostics. Transmission: Service and repair for automatic transmission (likely GM Turbo-Hydramatic 400/4L80 variants). Braking System: Front and rear disc brakes, hydraulic systems, ABS (if equipped). Suspension System: Front and rear independent suspension, shock absorbers, springs, bushings. Steering System: Power steering system, steering rack, linkages. Fuel System: Fuel tank, fuel pump, fuel lines, fuel injectors. Cooling System: Radiator, coolant hoses, water pump, thermostat, cooling fan. Electrical System: Battery, alternator, starter motor, lighting, wiring diagrams, fuses, relays. HVAC System: Air conditioning, heating, ventilation, climate control system. Bodywork And Interior: Body panel repair, doors, windows, convertible top (if applicable), interior trim. Exhaust System: Component identification, inspection, and replacement of exhaust manifolds, pipes, and mufflers. Emissions Control: Information on emission control devices and troubleshooting related to emissions. Interior Systems: Seat adjustment, dashboard illumination, interior trim removal and installation. Procedures Included Maintenance Procedures: Oil changes, filter replacements, fluid checks and changes, spark plug replacement, drive belt inspection and replacement. Diagnostic Procedures: Troubleshooting guides for common and uncommon issues, symptom-based diagnosis. Repair Procedures: Step-by-step instructions for component removal, overhaul, and reinstallation. Electrical Diagnostics: Wiring diagrams, circuit testing, component testing, ECU diagnostics. Engine Rebuilds: Detailed procedures for engine disassembly, cleaning, inspection, and reassembly, including torque specifications. Troubleshooting Electrical: Systematic diagnosis of electrical faults using wiring diagrams and component testing. Body Repair: Guidance on repairing dents, corrosion, and alignment of body panels and doors. Technical Depth Depth Of Information: Factory-level detail, suitable for professional technicians and experienced DIYers. Diagnostic Tools: Recommendations for necessary tools and equipment. Specifications And Tolerances: Precise technical specifications, clearances, and wear limits for all components. 📊 Manual Specifications File Format Digital Format: Web-based access via browser. Print Quality Print Quality Equivalent: High resolution, clear diagrams and text equivalent to professional print. Binding Type Binding Type: N/A (Digital Access) Paper Type Paper Type: N/A (Digital Access) ⚙️ Engine Specifications Primary Engine Engine Type: 5.3L V12 (5343 cc) Overhead Camshaft (OHC) Performance Horsepower: Approx. 260-270 hp (varies slightly by market and emission controls) Torque: Approx. 300-315 lb-ft Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) - Bosch or Lucas variants common. Fuel Type Fuel Type: Unleaded Gasoline (Octane rating as specified by Jaguar, typically premium) Ignition System Ignition Type: Electronic Ignition 🔧 Transmission Standard Transmission Type: Automatic Transmission Model: Typically GM Turbo-Hydramatic 400 (TH400) or later 4L80-E Features Transmission Fluid Type: Dexron III or equivalent Automatic Transmission Fluid (ATF) 📐 Dimensions Exterior Wheelbase: Approximately 102.4 inches (2600 mm) Length: Approximately 195 inches (4953 mm) Width: Approximately 72 inches (1829 mm) Height: Approximately 50 inches (1270 mm) Weights Curb Weight: Approximately 3,800 - 4,100 lbs (1724 - 1860 kg) 🛡️ Safety Features Ratings Crash Test Data: Limited formal crash test data available for this era from independent agencies. Focus on inherent safety design of GT cars of the period. Active Features Braking System: Power-assisted disc brakes front and rear, often with ABS. Passive Features Airbags: Driver airbag standard for 1991 model year. Seatbelts: Three-point seatbelts with inertia reel. 💡 Technology Features Infotainment Audio System: Factory fitted radio/cassette system, often with premium sound options. Driver Assistance ABS: Anti-lock Braking System (ABS) typically available on 1991 models. Connectivity Connectivity Features: N/A (Pre-modern connectivity era). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles or annually, depending on usage and oil specification. Major Service Interval: Consult manual for specific interval for ignition system service, coolant flush, etc. (often around 30,000-60,000 miles). Fluid Specifications Engine Oil Specification: 10W-40 or 15W-50 (check manual for specific viscosity recommendations based on climate and intended use). API SG or higher. Coolant Specification: Ethylene Glycol based antifreeze, typically a 50/50 mix with distilled water. Jaguar recommended specific coolant types may be listed. Known Issues Common Issues: Rust (especially wheel arches, sills), aging electrical components (connectors, relays), fuel injector issues, potential for...