Positioning:
A comprehensive DIY and professional-level resource for owners and independent mechanics of the 1991 Jaguar XJ6.
Advantage:
Offers detailed, actionable repair information typically only found in expensive official workshop manuals, accessible digitally.
Accessibility:
Immediate download, allowing for quick access to repair information, anytime, anywhere.
Cost Savings:
Empowers owners to perform maintenance and repairs, significantly reducing labor costs associated with dealerships or independent shops.
Knowledge Acquisition:
Provides in-depth understanding of the vehicle's intricacies, fostering better ownership and problem-solving skills.
Primary Coverage:
All service and repair aspects for the 1991 Jaguar XJ6
Secondary Coverage:
Troubleshooting, maintenance, component-specific repair, electrical diagnostics, bodywork
Estimated Page Count:
Varies by specific edition, but comprehensive manuals often exceed 1000 pages
Type:
Service Repair Manual / Workshop Manual
Engine:
Engine service, repair, overhaul, tuning, fuel injection, emission control
Transmission:
Transmission service and repair (automatic and manual if applicable)
Brakes:
Brake system diagnostics, repair, component replacement (discs, pads, lines, master cylinder)
Electrical:
Complete electrical system schematics, wiring diagrams, troubleshooting, component testing
Suspension:
Suspension component diagnosis, repair, alignment specifications
Steering:
Steering system components, power steering, linkage repair
Cooling:
Cooling system maintenance, radiator, water pump, thermostat, coolant specifications
Fuel System:
Fuel injection system diagnosis, fuel pump, injectors, fuel lines
Chassis Body:
Chassis and body repair, structural components, corrosion prevention
Restraint System:
Seat belt systems, airbag system (if equipped) components and service
Axles:
Axle and drive shaft service and repair
Lubrication:
Periodic lubrication schedules and specifications
Maintenance:
Routine maintenance tasks, fluid changes, filter replacements, tune-ups
Troubleshooting:
Diagnostic procedures for common and complex issues
Repair:
Step-by-step repair instructions for all major vehicle systems
Reassembly:
Detailed instructions for reassembling disassembled components and systems
Refurbishment:
Procedures for restoring and refurbishing various vehicle parts
Depth:
Comprehensive, covering basic maintenance to advanced engine and transmission overhauls
Software Requirements:
Adobe PDF Reader, WinZip (or equivalent decompression utility)
Compatibility:
Compatible with all versions of Windows and macOS
Quality:
High-resolution, suitable for printing individual pages or entire sections
Type:
Not applicable (digital download)
Type:
Not applicable (digital download)
Engine Type:
Naturally aspirated, inline-six cylinder
Engine Displacement:
4.0 Liters (3980 cc)
Engine Code:
AJ6 (later designations may exist for specific markets)
Horsepower:
Approximately 221 bhp (brake horsepower) at 4,750 rpm
Torque:
Approximately 277 lb-ft (pound-feet) at 3,750 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI) with multi-point injection
Fuel Type:
Unleaded gasoline
ECU:
Engine Control Unit (ECU) for managing fuel injection and ignition timing
Wheelbase:
Approximately 114.4 inches (2906 mm)
Length:
Approximately 197.0 inches (5004 mm)
Width:
Approximately 70.4 inches (1788 mm)
Height:
Approximately 54.0 inches (1372 mm)
Curb Weight:
Approximately 4,000 - 4,200 lbs (1814 - 1905 kg)
Gross Vehicle Weight Rating:
Varies by specific configuration, consult vehicle VIN plate
NHTSA Rating:
Not extensively rated by modern standards; focus on passive safety features of the era.
ABS:
Anti-lock Braking System (ABS) typically standard on most models
Airbags:
Driver-side airbag standard, passenger airbag optional or not available on all trims.
Seat Belts:
Three-point inertia-reel seat belts with pretensioners
Body Structure:
Robust unibody construction with crumple zones
Audio System:
Factory-installed AM/FM stereo with cassette player, often with premium sound options.
Climate Control:
Automatic climate control system for maintaining cabin temperature.
Cruise Control:
Standard cruise control for highway driving.
Connectivity Features:
Basic connectivity for the era, primarily focused on audio and climate systems.
Oil Change:
Every 3,000 to 5,000 miles or 6 months, whichever comes first (consult manual for exact recommendation)
Transmission Fluid:
Recommended every 30,000 to 50,000 miles, depending on driving conditions
Coolant Flush:
Every 2 years or 30,000 miles
Engine Oil:
API SG/SH rated, SAE 10W-30 or 10W-40 (check manual for specific viscosity based on climate)
Coolant:
Ethylene glycol-based antifreeze, 50/50 mix with distilled water
Brake Fluid:
DOT 3 or DOT 4 brake fluid
Electrical Gremlins:
Known for intermittent electrical issues, often related to poor ground connections or aging wiring harnesses.
Suspension Wear:
Components like ball joints, bushings, and shock absorbers can wear over time, affecting ride quality.
Head Gasket:
While generally robust, the AJ6 engine can be susceptible to head gasket issues if overheated.
Rust:
As with many vehicles of this era, rust can be an issue, particularly in wheel arches, sills, and the underbody.
Heritage:
Jaguar has a long-standing reputation for producing luxurious, powerful, and stylish grand tourers.
Evolution:
The XJ40 generation, introduced in 1986, represented a significant modernization of the XJ line, moving away from the older Series styling.
Production Period:
1986-1994 (XJ40 generation)
Manufacturing Location:
Coventry, England
