This comprehensive 1990 Jaguar XJ40 Service and Repair Manual provides detailed instructions, diagrams, and specifications for all models and repairs, ensuring you have everything you need to maintain, service, diagnose, and repair your vehicle with ease. This manual is identical to what technicians use at dealerships, offering in-depth knowledge and expert guidance. The manual covers a wide range of topics, including: * **Maintenance:** Regular maintenance schedules, fluid changes, and component inspections. * **Engine:** Detailed information on engine operation, troubleshooting, and repair, covering components like the cylinder head, valves, camshaft, crankshaft, pistons, and connecting rods. * **Control System:** Explanation of electronic control systems, including fuel injection, ignition, and emissions control. * **Mechanical:** Coverage of all mechanical systems, including the transmission, suspension, brakes, steering, and drivetrain. * **Fuel Service Specifications:** Detailed specifications for fuel systems, including fuel lines, injectors, and fuel pumps. * **Emission Control:** In-depth information on emissions control systems, including catalytic converter, oxygen sensors, and evaporative emission control. * **Intake Exhaust Cooling:** Comprehensive details on intake and exhaust systems, including manifolds, pipes, and cooling systems. * **Lube:** Specific lubrication requirements for all components, including engine oil, transmission fluid, and differential fluid. * **Ignition Starting Charging:** Exploration of the ignition system, starting system, and charging system, covering components like the distributor, spark plugs, starter motor, and alternator. * **Auto Transmission Clutch:** Detailed information on automatic transmissions, including clutches, torque converters, and gearboxes. * **Manual Transmission:** Comprehensive details on manual transmissions, including gearboxes, shift mechanisms, and clutches. * **Transfer Propeller Shaft:** Explanation of transfer cases, propeller shafts, and universal joints. * **Drive Shaft:** In-depth information on drive shafts, axles, and wheel hubs. * **Differential:** Detailed information on differentials, including gear ratios, limited-slip differentials, and axle shafts. * **Axle Suspension:** Comprehensive coverage of suspension systems, including shocks, struts, springs, and control arms. * **Tire & Wheel:** Information on tire sizes, wheel specifications, and wheel alignment. * **Brake Control:** Explanation of braking systems, including hydraulic systems, master cylinders, and calipers. * **Brake:** Detailed information on brake components, including brake pads, rotors, drums, and calipers. * **Parking Brake:** Coverage of parking brake systems, including cables, levers, and mechanisms. * **Steering Column:** Detailed information on the steering column, including the steering wheel, steering shaft, and steering gear. * **Power Steering:** Explanation of power steering systems, including pumps, hoses, and steering racks. * **Air Condition:** Comprehensive coverage of air conditioning systems, including compressors, condensers, evaporators, and refrigerant. * **Suppl Restraint System:** Detailed information on supplemental restraint systems, including airbags, seatbelts, and sensors. * **Seat Belt:** Information on seatbelt systems, including buckles, retractors, and pretensioners. * **Engine Immobilizer:** Explanation of engine immobilizer systems, including keys, transponders, and immobilizer modules. * **Cruise Control:** Coverage of cruise control systems, including sensors, actuators, and control modules. * **Wiper & Washer:** Detailed information on windshield wiper and washer systems, including motors, linkages, and pumps. * **Door Lock:** Explanation of door lock systems, including actuators, latches, and key mechanisms. * **Meter Audio/Visual:** Information on instrument panels, gauges, and warning lights. * **Horn:** Coverage of horn systems, including horns, relays, and switches. * **Windshield/Glass Mirror:** Information on windshield, glass, and mirror replacement and repair. * **Instrument Panel:** Detailed information on the instrument panel, including the dashboard, controls, and gauges. * **Seat:** Comprehensive coverage of seats, including adjustments, heating, and ventilation. * **Engine Hood/ Door:** Information on engine hood and door operation, including hinges, latches, and cables. * **Exterior & Interior:** Description of exterior and interior components, including trim, paint, and upholstery. * **Electrical:** Detailed information on electrical systems, including wiring diagrams, circuits, and components. * **Multiplex/ Can Communication:** Explanation of multiplex and CAN communication systems, including data bus, control modules, and sensors. With this detailed and comprehensive manual, you can confidently tackle any repair or maintenance task on your 1990 Jaguar XJ40.

The 1990 Jaguar XJ40 Service and Repair Manual is an essential resource for anyone looking to maintain or repair their classic XJ40. This comprehensive manual provides detailed instructions and diagrams covering every aspect of the vehicle, from routine maintenance to advanced repairs. It serves as a gateway to unlocking the intricacies of the XJ40's mechanical heart, empowering owners to confidently tackle a wide range of tasks themselves. The manual is meticulously organized, making it easy to navigate and find the specific information needed. It includes detailed descriptions of each component, troubleshooting guides, wiring diagrams, and specifications for all parts. With this manual at your fingertips, you can be sure to have the necessary information to diagnose and fix any issue that arises. The Jaguar XJ40, produced from 1986 to 1994, marked a significant departure for the marque. It was the first Jaguar to utilize a monocoque construction, resulting in a lighter and more rigid chassis. Furthermore, the XJ40 introduced a range of innovative features, including a sophisticated multi-link rear suspension and a new electronically controlled automatic transmission. Under the hood, the XJ40 offered a variety of powerful and refined engines, including the renowned 3.6-liter and 4.0-liter straight-six units. Despite its modern advancements, the XJ40 retained the characteristic elegance and luxurious appointments that have become synonymous with Jaguar. Its timeless design, exemplified by the iconic grille and flowing lines, continues to captivate enthusiasts today. The 1990 XJ40 Service and Repair Manual is an indispensable companion for anyone seeking to maintain and preserve this iconic British automobile.