Engine Mechanical:
Complete overhaul and rebuilding procedures
Engine Management:
Engine performance tuning, troubleshooting, computer diagnostic codes, diagnostic trouble tree charts
Fuel System:
Fuel injection system diagnosis and repair
Cooling System:
Radiator, fan, water pump service and diagnosis
Ignition System:
Spark plugs, coils, distributor service
Exhaust System:
Catalytic converter, muffler, pipe replacement and diagnosis
Transmission Mechanical:
Removal and installation, in-car servicing, rebuild procedures
Transmission Hydraulic Control:
Service and diagnosis of transmission control systems
Drivetrain:
U-Joint and CV-Joint service procedures, differential service
Suspension System:
Front and rear suspension component diagnosis, replacement, and alignment procedures and specifications
Steering System:
Power steering system service and diagnosis
Brake System:
Brake servicing procedures, component replacement, bleeding procedures, ABS system diagnosis
Electrical System:
Complete wiring diagrams, troubleshooting electrical faults, starter, alternator service
Lighting System:
Headlight, taillight, interior lighting diagnosis and repair
HVAC System:
Air conditioning service, refrigerant capacities, heater core service
Body And Chassis:
Exterior and interior trim removal, panel replacement, sunroof service
Interior Systems:
Seat removal, dashboard components, sound system installation
Diagnostic Tools:
Use of OBD-II scanners, diagnostic trouble codes (DTCs)
Preventative Maintenance:
Factory maintenance schedules and charts, fluid changes, filter replacements
Troubleshooting:
Step-by-step troubleshooting guides for various issues, diagnostic strategies
Repair Procedures:
Detailed instructions for component replacement and repair
Rebuilding:
Engine and transmission rebuilding processes
Restoration:
Guidance applicable to restoring classic Jaguar XJS models
Timing Belt Replacement:
Specific procedures for timing belt service
Serpentine Belt Routing:
Diagrams and instructions for belt routing
Wheel Alignment:
Front end and alignment procedures and specifications
Diagnostic Capability:
Advanced diagnostics and troubleshooting
Repair Depth:
Comprehensive repair procedures, from minor adjustments to major component overhauls
Visual Aids:
Hundreds of illustrations, zoomable images, exploded views, diagrams
Data Availability:
Detailed specifications on every model covered, torque specifications, capacities, firing orders
Transmission Type:
4-speed automatic (e.g., GM TH400, ZF 4HP22)
Manual Transmission Availability:
Rare/Not widely available for these specific years, primarily automatic
Gear Ratios:
Detailed ratios available within the manual
Transmission Fluid:
Specify applicable fluid type (e.g., Dexron III, ZF LifeguardFluid)
Oil Change Interval:
Typically 3,000 - 6,000 miles or 6-12 months (refer to manual for specific interval)
Major Service Interval:
30,000 - 60,000 miles (includes spark plugs, filters, coolant flush)
Engine Oil Type:
Refer to manual (e.g., 10W-40, 20W-50 synthetic recommended for V12)
Engine Oil Capacity Liters:
Approx. 7.5 (V12), 5.0 (Inline-6)
Coolant Type:
Ethylene Glycol based, long-life coolant (e.g., Jaguar specific or compatible)
Rust Corrosion:
Prone to rust in sills, wheel arches, and around windows; proper undercoating and maintenance is crucial.
Oil Leaks:
Common leak points include valve cover gaskets, oil pan gasket, and crankshaft seals, particularly on the V12.
Cooling System Overheating:
Can be prone to overheating if cooling system components (radiator, water pump, thermostat) are not maintained.
Electrical Gremlins:
Aging wiring harnesses and connections can lead to intermittent electrical faults. The manual's wiring diagrams are invaluable.
Suspension Wear:
Bushings, ball joints, and shock absorbers can wear over time, impacting handling and ride quality.
Transmission Shifts:
Hydraulic control issues or worn clutches in the automatic transmission can cause rough or delayed shifts.
Brand Legacy:
Jaguar has a rich heritage in producing powerful, luxurious, and stylish grand tourers.
Xjs Development:
Successor to the iconic E-Type, the XJS was designed with a focus on comfort, stability, and V12 performance.
Facelift 1991.5:
Significant updates for 1991.5 model year included improved aerodynamics, revised interior, and the availability of the 6.0L V12 and the 4.0L AJ6 inline-six.
Production Period:
1975-1996
Production Location:
Coventry, England