Positioning:
A definitive resource for owners and mechanics of the 1986-1994 Jaguar XJ6 (XJ40), bridging the gap between basic owner's information and professional workshop data.
Alternatives:
This factory manual offers a level of detail and accuracy unmatched by generic third-party repair guides, ensuring correct procedures and specifications.
Features:
Authentic factory documentation, comprehensive system coverage, detailed step-by-step instructions, clear illustrations and diagrams, advanced troubleshooting guide, and printable format for workshop use.
Savings:
Enables owners to perform a wide range of maintenance and repair tasks, potentially saving $50-$60 per hour on labor costs compared to professional shops.
Engine Systems:
Includes engine mechanical, lubrication, cooling, fuel delivery (injection), exhaust, emission control, and engine management systems.
Drivetrain:
Covers transmission (automatic and manual where applicable), driveshafts, differential, and axles.
Chassis And Suspension:
Detailed coverage of front and rear suspension, steering system, wheel bearings, and chassis components.
Braking System:
Comprehensive details on hydraulic systems, ABS (where fitted), brake pads, discs, calipers, and lines.
Electrical System:
Extensive coverage including starting and charging systems, lighting, ignition, instrumentation, power accessories, and detailed wiring diagrams.
Comfort And Convenience:
Includes HVAC (heater/air conditioning), interior trim, seats, power windows, locks, and security systems.
Body And Frame:
Information on body panels, doors, windows, bumpers, and structural components.
Maintenance:
Routine maintenance tasks, fluid changes, filter replacements, inspections, and lubrication schedules.
Diagnostics Troubleshooting:
Systematic approach to identifying and resolving common and complex problems, including fault codes where applicable.
Repair Overhaul:
Step-by-step instructions for component removal, disassembly, repair, reassembly, and installation.
Adjustments:
Procedures for adjusting critical systems such as engine timing, idle speed, brake systems, and suspension alignment.
Specifications Data:
Detailed technical specifications, torque values, tolerances, and diagnostic data for all systems.
Depth:
Comprehensive coverage suitable for professional technicians and advanced DIY enthusiasts, covering everything from basic maintenance to complete engine and transmission rebuilds.
Visual Aids:
Includes numerous detailed illustrations, diagrams, exploded views, and photographs to clarify repair procedures.
Diagnostic Tools:
Information may include guidance on using specific diagnostic tools or procedures relevant to the era.
Engine Type:
Inline-6 (AJ6) and V12 (for specific XJ-S variants, though XJ6 primarily uses AJ6)
Displacement:
3.6L (3590 cc) and 4.0L (3980 cc) AJ6 engines
Horsepower 3.6L:
Approx. 200-220 hp (varies by market and specific tuning)
Torque 3.6L:
Approx. 230-240 lb-ft (varies)
Horsepower 4.0L:
Approx. 220-245 hp (varies)
Torque 4.0L:
Approx. 270-280 lb-ft (varies)
Injection Type:
Electronic Fuel Injection (EFI) - Lucas/Jaguar electronic control systems
Fuel Type:
Unleaded Premium Gasoline
Crash Testing:
Vehicle safety standards of the era applied. Specific NHTSA/IIHS ratings may vary by year and availability. Focus on passive safety features.
ABS:
Anti-lock Braking System (ABS) was optional or standard on later models.
Airbags:
Driver's side airbag introduced during the XJ40 production run, often standard from the late 80s/early 90s onwards.
Seatbelts:
Three-point seatbelts in the front and rear.
โครงสร้าง:
Reinforced safety cage, crumple zones, and energy-absorbing steering column.
Oil Change:
Typically every 5,000 - 7,500 miles or 6-12 months, depending on driving conditions and oil type specified in the manual.
Major Service:
Recommendations for spark plug replacement, coolant flush, transmission fluid service, and brake fluid replacement will be detailed with specific mileage or time intervals.
Engine Oil:
Refer to manual for specific viscosity (e.g., 10W-40 or 20W-50, depending on ambient temperature) and API service classification. Typically around 5-6 quarts for 6-cylinder engines.
Transmission Fluid:
For ZF 4HP22 automatic: ATF Dexron II or equivalent. Capacity around 4-5 quarts for a drain and fill.
Coolant:
Ethylene glycol-based antifreeze (typically a 50/50 mix with distilled water). Capacity around 10-12 quarts.
Brake Fluid:
DOT 3 or DOT 4 brake fluid, depending on system requirements.
Common Problems:
Electrical gremlins ( Lucas components), cooling system leaks (hose failures, radiator), suspension wear (bushings, ball joints), head gasket issues on some AJ6 engines, gearbox issues on higher mileage vehicles, and corrosion on bodywork.
Heritage:
Jaguar has a long-standing reputation for luxury, performance, and distinctive styling, building upon the legacy of Sir William Lyons' designs.
Evolution Points:
The XJ40 replaced the iconic Series III XJ. Key advancements included a more modern monocoque construction, updated independent rear suspension, and the introduction of the AJ6 engine. The 4.0L engine and ABS were significant updates during its production life. Facelifted models in later years saw minor styling and feature updates.
Manufacturing Location:
Coventry, England, United Kingdom
Production Period:
1986 - 1994 (for the XJ40 generation)
