1997 JAGUAR XJ6 Index

3261 Jaguar XJ6
REPAIRS & OVERHAUL
Engine and associated systems
Engine in-car repair procedures Page 2A•1
Engine removal and overhaul procedures Page 2B•1
Cooling, heating and air conditioning systems Page 3•1
Fuel and exhaust systems Page 4•1
Engine electrical systems Page 5•1
Emissions and engine cone control systems Page 6•1
Transmission
Automatic transmissionPage 7•1
DrivetrainPage 8•1
Brakes and suspension
Braking systemPage 9•1
Suspension and steering systems Page 10•1
Body equipment
Bodywork and fittingsPage 11•1
Body electrical systems Page 12•1
Wiring diagramsPage 12•16
REFERENCE
Dimensions and weights Page REF•1
Jacking and vehicle support Page REF•1
Radio/cassette unit anti-theft system - precaution Page REF•1
Conversion factorsPage REF•2
Use of EnglishPage REF•3
Buying spare parts and vehicle identification Page REF•4
General repair procedures Page REF•5
Tools and working facilities Page REF•6
MOT test checksPage REF•8
Fault findingPage REF•12
Glossary of technical terms Page REF•18
IndexPage REF•22
Contents

indexed near the bottom, therefore it will be
necessary to turn the module slightly to unlock
it from the rubber holder mounted on the
bottom of the fuel tank.
14Renew the fuel pump module as a single
unit.
15Refitting is the reverse of removal.
5 Fuel level sender unit- check
and renewal
3
Warning: Petrol is highly
flammable, so take precautions
when you work on any part of
the fuel system. See the
Warning in Section 2.
Note:Some 1994 models may be equipped
with faulty fuel level sender units. A tight float
rod bushing may cause the float to stick and
indicate high fuel levels while the tank is
almost empty.
Check
1Before performing any tests on the fuel
level sender unit, completely fill the tank with
fuel.
2Remove the boot liner (see Chapter 12) to
expose the fuel level sender unit access
cover.
3Disconnect the fuel level sender unit
electrical connector located on the accesscover.Note:1991 to 1994 models are
equipped with a fuel pump module and a
sender unit assembly while 1988 and 1989
models are equipped with only the fuel level
sender unit inside the tank.
4Position the ohmmeter probes on the
electrical connector terminals (see
illustration)and check for resistance. Use the
200 ohm scale on the ohmmeter.
5With the fuel tank completely full, the
resistance should be about 18 to 20 ohms.
6Reconnect the electrical connector and
drive it until the tank is nearly empty.
7Check the resistance. The resistance of the
sender unit should be about 190 to 200 ohms.8If the readings are incorrect, renew the
sender unit. Note:The test can also be
performed with the fuel level sender unit
removed from the fuel tank. Using an
ohmmeter, check the resistance of the sender
unit with the swing arm completely down (tank
empty) and with the arm up (tank full) (see
illustration). The resistance should change
steadily from 200 ohms to around 18 ohms.
Renewal
Warning: The fuel level in the
tank must be less than half full
to safely remove the fuel
pump/sender unit assembly from the fuel
Fuel and exhaust systems 4•5
4
5.4 Connect the probes of the ohmmeter
to the fuel level sender unit terminals and
check the resistance of the float assembly5.8 An accurate check of the sender unit
can be made by removing it from the fuel
tank and observing the resistance with the
float down (empty) and then extended (full)
3261 Jaguar XJ6
4.12 Exploded view of the in-
tank fuel pump and the fuel tank
on 1991 to 1994 models

3261 Jaguar XJ6
Dimensions and weights . . . . . . . . . . . . . . . . . . .REF•1
Jacking and vehicle support . . . . . . . . . . . . . . . .REF•1
Radio/cassette unit anti-theft system . . . . . . . . .REF•1
Conversion factors . . . . . . . . . . . . . . . . . . . . . . .REF•2
Use of English . . . . . . . . . . . . . . . . . . . . . . . . . . .REF•3
Buying spare parts . . . . . . . . . . . . . . . . . . . . . . . .REF•4
Vehicle identification . . . . . . . . . . . . . . . . . . . . . .REF•4General repair procedures . . . . . . . . . . . . . . . . .REF•5
Tools and working facilities . . . . . . . . . . . . . . . . .REF•6
MOT test checks . . . . . . . . . . . . . . . . . . . . . . . . .REF•8
Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . .REF•12
Glossary of technical terms . . . . . . . . . . . . . . . .REF•18
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .REF•22
Dimensions and weights
Note:All figures are approximate, and may vary according to model. Refer to manufacturer’s data for exact figures.
Dimensions
Overall length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4988 mm
Overall width (including mirrors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2015 mm
Overall height (unladen) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1358 mm
Wheelbase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2870 mm
Weights
Kerb weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1770 kg
Maximum gross vehicle weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2190 kg
Maximum towing weight:
Braked trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1500 kg
Unbraked trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750 kg
Maximum axle load:
Front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1050 kg
Rear axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1170 kg
Maximum roof rack load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 kg
ReferenceREF•1
Radio/cassette unit anti-theft system - precaution
Some models are equipped with an audio
system which includes an anti-theft feature, to
deter thieves. If the power source to the unit is
cut, the anti-theft system will activate. Even if
the power source is immediately reconnected,
the radio/cassette unit will not function untilthe correct security code has been entered.
Therefore if you do not know the correct
security code for the unit, do notdisconnect
the battery negative lead, or remove the
radio/cassette unit from the vehicle.The procedure for reprogramming a unit
that has been disconnected from its power
supply varies from model to model - consult
the handbook supplied with the unit for
specific details or refer to your Jaguar dealer. The jack supplied with the vehicle tool kit
should only be used for changing the
roadwheels - see “Wheel changing”at the
front of this manual. When carrying out any
other kind of work, raise the vehicle using a
hydraulic (or “trolley”) jack, and always
supplement the jack with axle stands
positioned under the vehicle jacking points.
To raise the front of the vehicle, place a
block of wood on the jack head and positionthe jack underneath the centre of the front
crossmember. Lift the vehicle to the required
height and support it on axle stands
positioned underneath the vehicle jacking
points on the sills.
To raise the rear of the vehicle, place a
block of wood on the jack head and position
the jack underneath the centre of the rear
crossmember. Lift the vehicle to the required
height and support it on axle standspositioned underneath the vehicle jacking
points on the sills.
The jack supplied with the vehicle locates in
the jacking points on the sills. Ensure that the
jack head is correctly engaged before
attempting to raise the vehicle.
Neverwork under, around, or near a raised
vehicle, unless it is adequately supported in at
least two places.
Jacking and vehicle support

3261 Jaguar XJ6
REF•22Index
AABS fault finding -9•2
Accelerator cable -4•8
Acknowledgements -0•4
Aerial - 12•8
Air cleaner -1•14, 4•7
Air conditioning -3•2, 3•7, 3•10, 3•11, 3•13, 3•14
Air induction system -4•9
Air Injector Reactor (AIR) system -6•8
Air intake plenum -4•13
Airbag - 0•5, 12•14
Alternator -5•6
Amplifier -5•3
Anti-lock Brake system (ABS) -9•2
Anti-roll bar - 10•3
Anti-theft system - REF•1
Antifreeze -0•11, 0•16, 1•2, 1•20, 3•2
Asbestos -0•5
ATF -0•16
Automatic transmission-7•1et seq
fault finding - 7•1, REF•15
fluid - 0•16, 1•2, 1•11, 1•19
filter - 1•19
Auxiliary shaft -2A•8
BBalljoints - 10•4
Battery -0•5, 0•15, 1•9, 5•1, 5•1
Big-end bearings -2B•13, 2B•17
Bleeding
brake system - 9•10
power steering - 10•11
Block -2B•10, 2B•11
Blower motors -3•7
Body corrosion - REF•11
Body electrical system- 12•1et seq
Bodywork and fittings- 11•1et seq
Bonnet - 11•3, 11•4
Boot - 11•7
lid - 11•3, 11•6, 11•7,
Boots (steering) - 10•9
Brake fluid -0•12, 0•16, 1•20
Brake lights - 12•12
switch - 9•13
Brake servo -1•12
Braking system-1•12, 9•1et seq
fault finding - REF•15, REF•16
MOT checks - REF•8 to REF•10
Bulbs -0•15, 12•11
Bumpers - 11•5
Burning -0•5
CCables -4•8, 5•2, 7•2, 7•4, 9•10, 9•11, 11•4, 11•10
Calipers -9•3
Camshafts -2A•9
Capacities -1•2
Carpets - 11•1
Cassette - REF•1
Catalytic converter -6•12
Central locking - 12•13
Centre console - 11•11
Charcoal canister -6•11
Charging -1•10
Charging system -5•5
Circuit breakers - 12•3
CO emissions (mixture) - REF•11
Coil (HT) -5•3
Coil spring - 10•5, 10•6
Compression check -2B•3
Compressor -3•13
Condenser -3•13
Connecting rods -2B•9, 2B•12, 2B•17, 2B•18
Console - 11•11, 11•12
Continuity check - 12•2
Control arms - 10•5, 10•6, 10•8
Conversion factors - REF•2
Coolant -0•11, 0•16, 1•2, 1•20, 3•2
Coolant reservoir -3•4, 3•5
Coolant temperature sensor -6•3
Cooling fans -3•3
Cooling system fault finding - REF•14
Cooling,heating and air conditioning systems-3•1et seq
Courtesy lights - 12•12
Cowl cover - 11•14
Crankcase ventilation system -1•16, 6•11
Crankshaft -2A•5, 2A•17, 2B•10, 2B•13, 2B•16
position sensor - 6•7
Cruise control - 12•13
Crushing -0•5
Cylinder head -2A•13, 2B•6, 2B•7, 2B•8
Cylinder honing -2B•12
DDashboard - 11•13
Dents - 11•2
Differential -8•1, 8•5
oil - 1•2, 1•11, 1•20
Dimensions - REF•1
Direction indicators - 12•4, 12•11, 12•12
Discs -9•4
Distributor -5•4
Doors - 11•7, 11•8, 11•9, 11•10, 11•10, REF•9
Drivebelt -1•16
Driveplate -2A•16
Driveshafts -8•1, 8•4, 8•5, REF•10
Drivetrain-1•14, 8•1et seq
Note:References throughout this index are in the form - “Chapter number” • “page number”

3261 Jaguar XJ6
IndexREF•23
EEarth check - 12•2
ECU -6•2
EGR gas temperature sensor -6•7
Electric shock -0•5
Electric windows - 12•13
Electrical equipment -1•14, REF•9
Electrical system fault finding - 12•1, REF•17
Electronic control system and ECU -4•9, 6•2
Electronic Fuel Injection (EFI) system -4•9, 4•10
Emissions and engine control systems-6•1et seq
Engine electrical systems-5•1et seq
Engine in-car repair procedures-2A•1et seq
Engine fault finding - ref•13,ref•14
Engine oil -0•11, 0•16, 1•2, 1•6
Engine removal and overhaul procedures-2B•1et seq
Environmental considerations - REF•5
Evaporative Emission Control (EVAP) system -6•10
Evaporator and expansion valve -3•14
Exhaust emission checks - REF•11
Exhaust Gas Recirculation (EGR) system -6•9
Exhaust manifolds -2A•4
Exhaust system -1•11, 4•2, 4•14, REF•10
Expansion tank -3•4, 3•5
FFans -3•3
Fault finding- REF•12et seq
ABS -9•2
automatic transmission - 7•1, REF•15
brakes - REF•15, REF•16
cooling system - REF•14
electrical system - 12•1, REF•17
engine - REF•13, REF•14
fuel system - REF•14
suspension and steering systems - REF•16, REF•17
Filling (bodywork repair) - 11•2
Filters
automatic transmission fluid - 1•19
fuel - 1•15
oil - 1•6
Fire -0•5
Fluids -0•16
Fuel and exhaust systems-4•1et seq, REF•11
Fuel filter -1•15
Fuel gauge - 12•7
Fuel pressure relief -4•2
Fuel system fault finding - REF•14
Fume or gas intoxication -0•5
Fuses -0•15, 12•2
GGaiters - 10•9
Gashes - 11•2
Gaskets - REF•5
Glass - 11•3, 11•10, 11•11, 12•13
Glossary of technical terms- REF•3, REF•18et seq
Glove box - 11•13
Grille - 11•5
HHandbrake -1•12, 1•20, 9•1, 9•10, 9•11, REF•8
Handles - 11•9, 11•10
Hazard flasher - 12•4
HC emissions - REF•11
Headlights -1•18, 12•9, 12•10, 12•11
Heated rear window - 12•8
Heater -3•2, 3•7, 3•9, 3•10, 3•11, 3•12
High-mounted brake light - 12•12
Hinges - 11•3
Horn - 12•11
Hoses -1•10
Hub bearings - 1•17, 10•8
Hydraulic system -0•16
Hydrofluoric acid -0•5
IIdle Speed Control (ISC) motor -4•11
Ignition switch - 12•6
Ignition system -1•15
In-tank fuel pumps -4•4
Indicators - 12•4, 12•11, 12•12
Inertia switch -4•1, 12•12
Information sensors -6•3
Injectors -4•12
Instruments - 1•14, 11•12, 12•6, 12•7, 12•12
Intake Air Temperature (IAT) sensor -6•7
Intake manifold -2A•4
Interior lights - 12•12
Introduction -0•4
JJacking - REF•1
Joint mating faces - REF•5
Jump starting -0•7
KKickdown cable -7•2
Knee bolster - 11•13
LLatch - 11•4, 11•7, 11•9
Leaks -0•9, 1•10, 7•2
Locknuts,locktabs and washers - REF•5
Locks - 11•3, 11•7, 11•9, 12•6
Lubricants -0•16
MMain bearings -2B•13, 2B•16
Manifolds -2A•4
Manual valve -7•7
Mass Airflow (MAF) sensor -6•6
Master cylinder -9•6
Mirrors - 11•11, 12•14, REF•8
MOT test checks- REF•8et seq
Mounts -2A•18, 7•8
Multi Point Fuel Injection (MPFI) system -4•1

3261 Jaguar XJ6
NNeutral start switch -7•5
Notes for UK readers -0•4, REF•3
Number plate light - 12•12
OObtaining diagnostic code output -6•3
Oil cooler -3•6
Oil filter -1•6
Oil gauge - 12•7
Oil pump -2A•15
Oil seals -2A•5, 2A•17, 2B•17, 7•7, 8•4, 8•5, REF•5
Oil,differential -1•2, 1•11, 1•20
Oil,engine -0•11, 0•16, 1•2, 1•6
On Board Diagnosis (OBD) system -6•2
Open circuit check - 12•2
Output shaft -7•7
Oxygen sensor -6•4
PPads (brake) -9•1, 9•2
Painting - 11•2
Parking lights - 12•11
Piston rings -2B•15
Pistons -2B•9, 2B•12, 2B•17
Poisonous or irritant substances -0•5
Power hydraulic system -0•16
fluid - 1•9
Power steering - 10•10, 10•11
fluid - 0•13, 0•16
Propshaft -1•18, 8•1, 8•2, 8•3
Punctures- 0•8
RRadiator -3•4
grille - 11•5
Radio - 12•7, REF•1
Rear lights - 12•12
Receiver/drier -3•12
Regulator (window) - 11•10
Relays - 12•3
Repair procedures - REF•5
Reversing lights -7•5, 12•12
Road test -1•14
Roadside repairs-0•6et seq
Routine maintenance and servicing-1•1et seq
Rust holes - 11•2
SSafety first -0•5
Scalding -0•5
Scratches - 11•2Screw threads and fastenings - REF•5
Seat belts -1•13, REF•9
Seats - 11•14, REF•9
Self-levelling rear suspension system - 10•3
Servo -1•12, 9•1, 9•9
Shift cable -7•4
Shock absorber - 10•4, 10•6, REF•9, REF•10
Shoes (brake) -1•20, 9•11
Short circuit check - 12•1
Side marker lights - 12•11
Spare parts - REF•4
Spark plugs -1•7, 1•14
Speakers - 12•7
Speed sensor -6•7
Spoiler - 11•5
Springs - 10•5, 10•6, REF•10
Starter motor -5•7
Steering - See Suspension and steering systems
Steering wheel and column - 11•13, 12•5, REF•8
Sump -2A•14
Sunroof - 12•14
Supplementary air valve -4•13
Suspension and steering systems- 1•12, 10•1et seq, REF•9, REF•10
fault finding - REF•16, REF•17
Switches -4•1, 7•5, 9•13, 12•5, 12•6, 12•12
TTail lights - 12•12
Temperature gauge - 12•7
Temperature sender unit -3•7
Thermostat -3•2
Throttle body -4•10
Throttle potentiometer -6•5
Tie-rod ends - 10•9
Timing chains -2A•6
Tools - REF•5, REF•6, REF•7
Top Dead Centre (TDC) for number one piston -2A•2
Torque converter -7•7
Towing -0•6
Trim panels - 11•7, 11•13
Tyres - 0•14, 10•11, REF•11
UUK readers information -0•4, REF•3
Universal joint -8•1, 8•2, 8•5
Upholstery - 11•1
VVacuum gauge checks -2B•3
Valve cover -2A•3
Valve lifters -2A•9
Valves -2B•8
Vehicle identification - REF•4, REF•9
Vehicle support - REF•1
Vinyl trim - 11•1
Voltage checks - 12•1
REF•24Index

3261 Jaguar XJ6
WWasher fluid -0•12
Water pump -3•6
Weekly checks-0•10et seq
Weights - REF•1
Wheel alignment -1•18, 10•11
Wheel bearings -1•17, 10•8, REF•10
Wheel changing -0•8Wheels - 10•11, REF•11
Windows - 11•10, 11•11, 12•13
Windscreen - 11•3, REF•8
Wing - 11•6
Wiper blades -0•13
Wiper motor - 12•8
Wiring diagrams- 12•15et seq
Working facilities- REF•7
IndexREF•25