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1990 Jaguar XJ6 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Jaguar REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

A/C & HEATER SERVICE PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
A/C & Cooling System Maintenance -> Jaguar -> XJ6, XJ12, XJR & XJS
Vehicle: 1990 Jaguar XJ6 4.0 L6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
JAGUAR, DISC BRAKES -> FRONT CALIPER REPLACEMENT -> XJ6 -> XJS
Vehicle: 1990 Jaguar XJ6 4.0 L6 GAS
XJS
- Raise and support vehicle.
- Remove brake pads, then disconnect and plug brake line.
- Remove lock wire (2) and remove two bolts and spring washers (3), Fig. , securing caliper and stub axle carrier.
- Note number of shims between steering arm and brake caliper. Remove caliper.
- Reverse procedure to install, noting the following:
- Ensure correct number of shims are installed between calipe...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
Jaguar -> Component Locations -> 1980-97 XJ6
Vehicle: 1990 Jaguar XJ6 Executive 4.0 L6 GAS
The fuel filter is located under the luggage compartment floor. On some early models, t...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1990 Jaguar XJ6 Sovereign 4.0 L6 GAS
- Raise and support vehicle on a four post lift.
- Remove front muffler and attached exhaust pipes.
- Match mark front driveshaft coupling to transmission drive flange.
- Unbolt driveshaft from transmission.
- Remove nuts and bolts connecting flexible coupling to differential driv...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
Starter, Replace
Vehicle: 1990 Jaguar XJ6 Executive 4.0 L6 GAS
- Disconnect battery ground cable.
- Remove bolt securing starter lead and transmission breather tube to starter mounting bracket.
- Disconnect starter lead from starter terminal on firewall.
- Remove top bolt attaching starter mounting b...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
Jaguar -> Check Engine Lamp -> 1990-94
Vehicle: 1990 Jaguar XJ6 Executive 4.0 L6 GAS
The Check Engine lamp will be illuminated when the ignition switch is in the On position and the engine is not running. When the engine is started, the lamp should go out. If it remains lit, a diagnostic trouble ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
Radiator, Replace
Vehicle: 1990 Jaguar XJ6 Sovereign 4.0 L6 GAS
- Drain cooling system into a suitable container.
- Remove fan cowl assembly.
- Remove clip securing upper transmission (if fitted) cooler pipe to lower cooler pipe.
- Displace protective covers from quick fit connectors and using plastic Service Tool JD 182 remove power assisted steering (PAS) and automatic transmission (where fitted) cooling pipe unions as follows:
- Open plastic tool and fit around pipe.
- Turn tool clockwise and anti-clockwise while pushing into radiator boss.
- Push an...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Jaguar XJ6 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Jaguar XJ6 Executive 4.0 L6 GAS
- Install suitable spanner wrench tool, on belt tensioner pulley center bolt.
- Turn tool counterclo...
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COMPONENT LOCATION DIAGRAMS FOR 1990 Jaguar XJ6 AUTOMOBILES
Component location diagrams for most 1990 Jaguar XJ6 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Jaguar XJ6 AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Jaguar XJ6 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Jaguar XJ6 AUTOMOBILES
OEM TSB listings for most 1990 Jaguar XJ6 cars and light trucks sold in the U.S. from 1985+.
Document: REMOVAL OF SEIZED OXYGEN (O2) SENSORS - REVISED Vehicle: 1990 Jaguar XJ6 4.0 L6 GAS Auto Systems: |
Document: SPARK PLUG "BLOW-BY STAIN"/CORONA STAIN - SPARK PLUG FUNCTION NOT AFFECTED - REPLACEMENT UNNECESSARY Vehicle: 1990 Jaguar XJ6 4.0 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Jaguar XJ6 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Jaguar XJ6 cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1990 Jaguar XJ6 cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1990 Jaguar XJ6 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1990 Jaguar XJ6 cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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