🏷️ Basic Information Identification Make: Jaguar Model: XJS Year: 1991 👋 Introduction Market Position Positioning: Essential resource for Jaguar XJS owners and independent mechanics seeking professional repair guidance. Competitive Analysis Competitors: Offers a cost-effective and readily accessible alternative to expensive franchised dealer service or older printed manuals. Key Features Features: Comprehensive coverage, detailed diagrams, troubleshooting guides, instant access, and factory-level technical data. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Page Count Estimated Count: Thousands of pages (printable) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Service Repair: Comprehensive engine overhaul, diagnostics, and component repair. Transmission Service Repair: Detailed procedures for automatic transmission service, repair, and adjustments. Brake System: Repair and maintenance of hydraulic brake systems, including ABS if equipped. Wiring Diagram: Complete electrical schematics for all vehicle systems. Electrical System: Diagnosis and repair of all electrical components and circuits. Suspension: Front and rear suspension component repair, alignment, and adjustments. Steering: Power steering system diagnosis and repair. Cooling System: Radiator, fan, thermostat, and coolant system maintenance and repair. Fuel Injection: Detailed information on the fuel injection system, including diagnostics and component testing. Fuel System: Fuel pump, lines, tank, and filter maintenance and repair. Emission System: Information on emission control devices and troubleshooting. Heater Air Conditioning: HVAC system diagnosis, repair, and refrigerant handling. Engine Control System: ECU operation, sensor diagnosis, and control module troubleshooting. Chassis Body: Body repair, frame straightening, and chassis component maintenance. Restraint System: Airbag system components and servicing (if applicable). Interior: Trim, upholstery, and interior component repair. Differential Drive: Rear axle and differential service and repair. Axle: Front and rear axle component service. Procedures Included General Maintenance: Routine checks, fluid changes, filter replacements, and inspections. Troubleshooting: Systematic diagnosis of common and uncommon vehicle problems. Periodic Lubrication: Scheduled lubrication points and recommended lubricants. Engine Repair: Engine component removal, installation, and rebuilding procedures. Transmission Repair: Transmission overhaul, clutch service, and driveline component repair. Brake Repair: Brake pad replacement, rotor machining, caliper service, and bleeding procedures. Electrical Diagnosis: Step-by-step troubleshooting for electrical faults. Suspension Repair: Ball joint replacement, shock absorber installation, and bushing service. Steering Repair: Tie rod end replacement, steering rack overhaul, and power steering pump service. Cooling System Repair: Water pump replacement, hose replacement, and radiator repair. Fuel Injection Repair: Injector testing and replacement, fuel pressure regulator service. Chassis Body Repair: Panel replacement, rust repair, and alignment procedures. Technical Depth Depth: Complete Factory Level Repair and Diagnostic Information 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High Quality Printable Pages Binding Type Binding: Digital Download (No physical binding) Paper Type Paper: N/A (Digital) Requirements Software: Adobe PDF Reader, WinZip (for larger files) Delivery Method: Instant Download ⚙️ Engine Specifications Primary Engine Engine Type: V12 (typically 5.3L / 6.0L depending on specific 1991 variants, 5.3L most common) Performance Horsepower Torque: Specifications for the 5.3L V12 (e.g., approx. 260-290 bhp, 315-360 lb-ft torque) will be detailed. Fuel System Injection Type: Electronic Fuel Injection (e.g., Lucas GEMS or Bosch). 🔧 Transmission Standard Type: 3-speed or 4-speed Automatic Transmission (e.g., GM Turbo-Hydramatic 400 or ZF 4HP22). Optional Type: Manual transmission was rare for 1991 but may be covered if applicable. Features Fluid Type: Likely DEXRON-III (or equivalent) automatic transmission fluid. 📐 Dimensions Exterior Body Style: 2+2 Coupe and Convertible Weights Curb Weight: Approximately 3800-4200 lbs (1725-1905 kg). 🛡️ Safety Features Ratings Crash Test: Vehicle safety ratings from the era will be noted, though comprehensive modern standards may not apply. Passive Features Features: Seat belts, impact-absorbing steering column, reinforced body structure. 💡 Technology Features Infotainment Features: Original radio/cassette player, analog gauges, climate control for HVAC. Driver Assistance Features: ABS (Anti-lock Braking System) might be present on some models. 🔧 Maintenance Service Intervals Oil Change: Typically every 3,000-5,000 miles or 6-12 months, with specific intervals provided in the manual. Fluid Specifications Engine Oil: Likely SAE 20W-50 or 15W-50, depending on climate and specific engine variant. Coolant: Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. Known Issues Common Problems: Corrosion, electrical gremlins, fuel injection system issues, aging rubber components, suspension wear. Technical Specifications Spark Plugs: Specific plug type and gap for the V12 engine will be detailed (e.g., NGK or Champion). Tire Sizes: Common sizes include 215/70VR15 or 225/60VR16, depending on wheels fitted. Wheel Bolt Pattern: 5x120.65mm (5x4.75 inches). 📚 Vehicle History Brand Heritage Heritage: Jaguar's legacy of luxury grand tourers, known for performance and distinctive styling. Model Evolution Evolution: The 1991 model is part of the later XJS evolution, featuring updates to styling and powertrain from its introduction in 1975. Production Production Years: 1975-1996 🏆 Awards & Recognition Recognitions Automotive Press: While specific awards for the 1991 model year are not universally documented, the XJS was generally lauded for its GT capabilities and luxurious interior.