JAGUAR XJS 1991 Service Repair Manual

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🏷️ Basic Information Identification Make: Jaguar Model: XJS Year: 1991 Generation Generation: Second Generation (XJS Facelift) Codes Chassis Code: XJ-S 👋 Introduction Market Position Market Segment: Luxury Grand Tourer Competitive...

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标签: 1991 Car Cars Jaguar XJS

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Description

🏷️ Basic Information

Identification

Make:

Jaguar

Model:

Year:

Generation

Generation:

Second Generation (XJS Facelift)

Codes

Chassis Code:

👋 Introduction

Market Position

Market Segment:

Luxury Grand Tourer

Competitive Analysis

Competitors 1991:

BMW 8 Series, Mercedes-Benz SEC models, Porsche 928, Aston Martin Virage.

Key Features

V12 Engine:

The iconic Jaguar 5.3L V12 HE (High Efficiency) engine remains a defining characteristic.

Styling:

Elegant and timeless coupe and convertible styling, penned by Malcolm Sayer and refined over years.

Handling:

Sophisticated independent rear suspension and well-balanced chassis provide excellent ride and handling for its class.

Luxury Appointments:

High-quality leather, wood trim, and advanced (for the era) features contribute to a luxurious interior.

📋 Manual Details

Coverage Areas

Language:

English

Manual Type:

Service and Repair Manual

Page Count

Estimated Page Count:

High (Comprehensive - specific count not provided in product info)

Format

Format:

PDF (Digital Download)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

V12 Engine (5.3L HE - Jaguar AJ6/7/8 family precursor), including disassembly, assembly, inspection, and overhaul.

Engine Management:

Fuel Injection System (likely Lucas/Jaguar electronic fuel injection), Ignition System, Emissions Control Systems.

Transmission:

Automatic Transmission (likely ZF 4HP22/24), including operation, maintenance, and repair procedures.

Brakes:

Hydraulic Brake System, ABS (Anti-lock Braking System) if equipped, including component testing, bleeding, and repair.

Suspension Steering:

Front and Rear Suspension Systems, Power Steering System, including component replacement and alignment.

Electrical System:

Wiring Diagrams, Lighting System, Starting System, Charging System, Accessory Electricals, Instrument Panel.

Cooling System:

Radiator, Fan, Water Pump, Thermostat, Hoses, and Coolant specifications.

Fuel System:

Fuel Tank, Fuel Pump, Fuel Lines, Filters, and Injection System components.

Exhaust System:

Exhaust Manifolds, Catalytic Converters (if fitted), Mufflers, and Piping.

Body And Chassis:

Body Panel Repair, Door Mechanisms, Window Regulators, Interior Trim, Chassis Frame inspection and repair (limited).

Procedures Included

Maintenance:

Scheduled maintenance procedures, fluid checks and changes, filter replacements, lubrication.

Troubleshooting:

Diagnostic charts and procedures for common problems, fault finding based on symptoms.

Repair:

Component removal, installation, adjustment, and overhaul for all major systems.

Technical Specifications:

Torque specifications, clearance measurements, tolerances, electrical specifications.

Technical Depth

Depth:

Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds, suitable for professional mechanics and experienced DIYers.

📊 Manual Specifications

File Format

File Type:

Searchability:

Likely text-searchable (common for professional PDFs)

Print Quality

Diagram Quality:

Top Quality Diagrams and Illustrations

Text Clarity:

Accurate, Clear, and Concise Text

Binding Type

Binding:

Not Applicable (Digital PDF)

Paper Type

Paper:

Not Applicable (Digital PDF - reusable without damage)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Naturally Aspirated V12

Displacement:

5.3 Liters (5343 cc)

Bore X Stroke:

87.0 mm x 77.0 mm

Compression Ratio:

9.5:1 (approximate for HE engines)

Valvetrain:

Overhead Valve (OHV), Pushrod actuated (though often referred to as OHC in historical context due to complex manifolding, it's fundamentally pushrod).

Power Output:

Approx. 260-270 bhp (194-201 kW) at 4750-5000 RPM (varies by market and emission controls).

Torque Output:

Approx. 320-330 lb-ft (434-447 Nm) at 3000-3250 RPM.

Fuel System

Fuel Delivery:

Electronic Fuel Injection (EFI), typically Lucas/Jaguar system.

Fuel Type:

Unleaded Premium (91 Octane or higher recommended).

Ignition System

Ignition Type:

Electronic Ignition, often with twin distributors.

🔧 Transmission

Standard

Transmission Type:

ZF 4HP22/24 4-Speed Automatic

Optional

Manual Transmission:

Rarely fitted, but a 5-speed manual (Getrag) was an option on some earlier models, less common by 1991.

Features

Torque Converter Lockup:

Yes, provides improved fuel economy at cruising speeds.

Fluid Specifications

Transmission Fluid Type:

Dexron II (or equivalent specification for ZF 4HP22/24).

Fluid Capacity

Transmission Fluid Capacity:

Approx. 10.5 liters (check manual for exact fill procedure).

📐 Dimensions

Exterior

Length:

Approx. 4900 mm (192.9 in)

Width:

Approx. 1795 mm (70.7 in)

Height:

Approx. 1260 mm (49.6 in)

Wheelbase:

Approx. 2730 mm (107.5 in)

Weights

Curb Weight:

Approx. 1800-1900 kg (3968-4189 lbs) depending on body style and equipment.

🛡️ Safety Features

Ratings

Crash Test Data:

Limited official crash test data available for this era of vehicle compared to modern standards. Primarily relied on internal testing and design principles.

Active Features

Anti-lock Braking System (ABS) often standard or optional on 1991 models.

Traction Control:

Rarely fitted, not a common feature for this model year.

Passive Features

Airbags:

Driver airbag typically standard on 1991 models, passenger airbag less common.

Seat Belts:

3-point inertia-reel seat belts front and rear.

💡 Technology Features

Infotainment

Audio System:

Premium sound system, often with cassette player and radio. CD players were becoming available as options or aftermarket.

Driver Assistance

Cruise Control:

Electronic cruise control typically standard.

Climate Control:

Automatic climate control system for cabin temperature management.

Connectivity

Exterior Antennas:

Power-retractable radio antenna.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically 5,000 miles or 6 months, whichever comes first (refer to manual for exact spec).

Major Service Interval:

Intervals for spark plug changes, coolant flush, and other major services vary; consult the manual.

Fluid Specifications

Engine Oil Type:

API SG/SH, SAE 20W-50 or 15W-50 recommended for optimal V12 lubrication (check manual for variations).

Engine Oil Capacity:

Approx. 9.5 liters (8.5 Imp Quarts) with filter change.

Coolant Type:

Ethylene Glycol based coolant, mixed 50/50 with distilled water. Specific Jaguar recommendations may apply.

Known Issues

Cooling System Reliability:

Overheating can be an issue if the cooling system is not meticulously maintained; plastic water pump impellers can degrade.

Electrical Gremlins:

Age-related electrical issues are common, including wiring harness degradation, faulty relays, and sensor failures.

Rust And Corrosion:

Areas prone to rust include wheel arches, sills, and the rear crossmember, especially in humid climates.

Transmission Behavior:

ZF automatic transmissions can develop harsh shifting or slipping if fluid is neglected or seals deteriorate.

Fuel Injection Performance:

EFI system components (injectors, sensors, fuel pump) can require periodic checks and maintenance for optimal running.

📚 Vehicle History

Brand Heritage

Jaguar Legacy:

Jaguar's long history of producing luxurious, powerful, and stylish grand tourers, exemplified by models like the E-Type.

Model Evolution

Xjs Development:

Developed as a successor to the E-Type, initially launched in 1975. The 1991 model represents the 'facelift' or second generation, with significant updates including the HE V12 engine and improved handling.

Production

Production Period:

1975-1996. The 1991 model falls within the later phase of its production run.

Manufacturing Location:

Coventry, England, UK.

🏆 Awards & Recognition

Recognitions

Automotive Press:

Consistently praised by automotive journalists for its powerful V12 engine, smooth ride, and sophisticated handling, despite some criticisms of earlier models' reliability.

Ratings

Collector Status:

Increasingly recognized as a modern classic and a collectible Jaguar, particularly well-maintained examples.