🏷️ Basic Information

Make:

Jaguar

Model:

XJ6

Year:

1990

Chassis Code:

XJ40

Engine Code Prefix:

29A

👋 Introduction

Positioning Statement:

This comprehensive repair service manual for the 1990 Jaguar XJ6 provides essential technical information for professional technicians and dedicated DIY enthusiasts, enabling thorough maintenance and repair of this classic luxury sedan.

Advantage Over Competitors:

Offers factory-level detail and procedural guidance often missing in generic repair guides, emphasizing the specific nuances of Jaguar engineering.

Key Selling Points:

Step-by-step procedures, critical specifications, detailed illustrations, maintenance schedules, troubleshooting guides, and electrical schematics.

📋 Manual Details

Manual Type:

Repair Service Manual

Language:

English

Format:

PDF

Availability:

Instant Download

Intended Audience:

Professional Technicians and Experienced DIY Mechanics

Completeness:

Full Service Manual, encompassing repair, maintenance, and diagnostic information comparable to factory documentation.

📖 Manual Coverage

Powertrain:

Engine, Transmission, Fuel System, Exhaust System

Chassis:

Suspension (Independent Rear Suspension - IRS), Steering, Brakes, Wheels, Tires

Electrical:

Ignition System, Charging System, Starting System, Lighting, Instrumentation, Audio System, Climate Control Electronics, Engine Control Unit (ECU) and related sensors/actuators

Body:

Body Structure, Exterior Trim, Interior Trim, Doors, Hood, Trunk, Glass, Seats

Fuel System Details:

Fuel tank, fuel pump, fuel lines, fuel injectors, fuel pressure regulator, fuel filter replacement.

Maintenance:

Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication

Repair:

Disassembly, Assembly, Rebuilding of major components, Component replacement

Troubleshooting:

Diagnostic procedures, Fault code interpretation (where applicable), Symptom-based troubleshooting

Technical Specifications:

Torque values, Clearances, Dimensions, Electrical Schematics, Wiring Diagrams

Engine Rebuilding:

Detailed procedures for engine disassembly, component inspection, bearing replacement, piston ring replacement, cylinder head overhaul, and engine reassembly.

Electrical Diagnostics:

Comprehensive wiring diagrams, troubleshooting charts for electrical faults, component testing procedures for sensors and actuators.

Suspension And Steering Repair:

Service procedures for front and rear suspension components, including shock absorber replacement, bushing replacement, ball joint servicing, and steering rack overhaul.

Brake System Service:

Procedures for brake pad replacement, rotor replacement, caliper servicing, brake fluid bleeding, and ABS system troubleshooting.

Depth:

Comprehensive, covering both basic maintenance and complex repairs, including internal component servicing.

Internal Component Servicing:

The manual provides guidance on servicing internal engine components (e.g., crankshaft, connecting rods, camshafts), transmission components, and differential gears.

📊 Manual Specifications

File Format:

PDF

Searchability:

Likely searchable text within the PDF for keywords related to parts, procedures, and specifications.

Printability:

Full Printable

Zoom Functionality:

Yes (Zoom IN/OUT)

Binding Type:

Digital (Downloadable PDF)

Paper Type:

Not Applicable (Digital Format)

Software Requirements:

Adobe PDF Reader, WinZip (for potential archive extraction)

Operating Systems:

All Versions of Windows & Mac

⚙️ Engine Specifications

Engine Type:

Inline 6-Cylinder

Engine Displacement:

3.6 Liters (3590 cc)

Engine Code:

AJ6 (often designated as 29A for export markets)

Bore X Stroke:

94 mm x 87 mm

Compression Ratio:

9.5:1 (typical)

Valve Train:

DOHC (Double Overhead Camshaft), 4 valves per cylinder

Horsepower:

Approx. 221 hp @ 5500 rpm (US Spec)

Torque:

Approx. 230 lb-ft @ 4500 rpm (US Spec)

Fuel Delivery:

Bosch L-Jetronic Fuel Injection (later models may feature KE-Jetronic or electronic injection systems)

Fuel Type:

Unleaded Premium Gasoline (91 Octane or higher recommended)

Coolant Type:

Ethylene Glycol based coolant (specific Jaguar specification may apply)

🔧 Transmission

Transmission Type:

ZF 4HP22 4-Speed Automatic

Transmission Type:

Getrag 5-Speed Manual (less common, especially in North America)

Transmission Fluid:

Dexron III (or equivalent specification, refer to manual for precise type)

📐 Dimensions

Length:

Approx. 197.2 inches (5009 mm)

Width:

Approx. 70.1 inches (1780 mm)

Height:

Approx. 53.2 inches (1351 mm)

Curb Weight:

Approx. 3800-4000 lbs (1724-1814 kg) depending on options

Wheelbase:

Approx. 113 inches (2870 mm)

🛡️ Safety Features

Crash Test Data Availability:

Limited official crash test data readily available for this specific model year from common agencies like NHTSA or IIHS for the era.

Braking System:

Four-wheel Anti-lock Braking System (ABS)

Airbags:

Driver-side airbag (standard on most models)

Seatbelts:

Three-point seat belts with pretensioners

💡 Technology Features

Audio System:

Typically features a premium audio system with cassette player and AM/FM radio. Later models might offer CD integration.

Cruise Control:

Standard electronic cruise control.

Climate Control System:

Automatic climate control with air conditioning and heating.

Headlights:

Halogen headlights with power washers.

Mirrors:

Power-adjustable and heated side mirrors.

🔧 Maintenance

Oil Change Interval:

Typically 3,000-5,000 miles or 6 months, whichever comes first (refer to manual for exact recommendation).

Transmission Fluid Change Interval:

Approximately 30,000-50,000 miles (refer to manual).

Engine Oil Viscosity:

10W-40 or 20W-50 depending on climate (refer to manual for specific ambient temperature ranges).

Engine Oil Capacity:

Approx. 5.7 quarts (5.4 liters) with filter change.

Coolant Capacity:

Approx. 10.5 quarts (9.9 liters).

Common Problems:

Potential issues can include electrical gremlins (especially related to the J.A.G.U.A.R. acronym for its notorious electrical issues), coolant leaks (especially from the air conditioning system due to its routing), front suspension wear (ball joints, tie rod ends), and potential rust in certain climates. The early 3.6L engine can be sensitive to cooling system maintenance.

Preventative Maintenance Emphasis:

Regular inspection and replacement of cooling hoses, attention to electrical connections, and timely fluid changes are critical for longevity.

📚 Vehicle History

Brand Philosophy:

Jaguar is renowned for combining luxury, performance, and sophisticated design, a tradition deeply embedded in the XJ series.

Xjs Series Context:

The XJ40 generation, introduced in 1986, represented a significant modernization of the Jaguar XJ line, moving away from older styling cues and incorporating more advanced technology while retaining the characteristic luxury and driving dynamics.

Manufacturing Location:

Coventry, England

Production Years:

1986-1994 (XJ40 generation)

🏆 Awards & Recognition

Awards And Accolades:

While specific awards for the 1990 model year are not prominently documented, the XJ series throughout its history has been consistently recognized for its luxury, ride quality, and elegant design, often competing favorably with contemporary German luxury sedans.