1994 JAGUAR XJ6 fuel

Fuel, Emission Control 8t Engine Management (V12)
The connectors are released by pushing the tool in to the female half ofthe connector and at the same time disengaging
the latches.
Viton hosing surrounds the tubing, thus preventing any po
- tential damage from fire and other matters.
The conductive anti
-permeation tubing does not return to
its original shape after being deformed. Therefore do not
clamp (eg. for sealing purposes prior to disconnection of
tubes) as this damages the fuel pipes.
The evaporative
loss control system, prevents unprocessed
vapour emitted from the fuel tank from entering the atmos- phere.
The tank pressure control (Rochester) valve is installed be
- tween the fuel tank and the carbon canister. lt is normally
closed, but open during engine operation, venting the va- pours from the fuel tank to the carbon canister.
The purge valve is controlled by the engine control module
(ECM) and is linked to the carbon canister.
Fig.
1 Quick-fit Connector and Release Tool
X300 VSM Issue 1 August 1994 4

Fuel, Emission Control & Engine Management (V12)
9
Fig. 1
Disconnect vacuum hose (1 Fig.1) from cruise control actuator (2 Fig.1).
. Disconnect vacuum hose (3 Fig.1) from fuel pressure regulator.
Disconnect throttle control rods from throttle pulley assembly ball pins (4 Fig.1).
. Reposition throttle control rods to inner wings.
. Disconnect cruise control rod from throttle pulley assembly ball pin (5 Fig.1).
. Undo and remove bolts securing fuel rail.
. Reposition cruise control rod below throttle pulley assembly.
. Remove cruise control actuator / bracket assembly and fixings (6 Fig.1).
. Disconnect injector harness plugs (7 Fig.1).
Disconnect throttle potentiometer multi-plug (8 Fig. 1)
. Remove throttle pulley bracket assembly and fixings (9 Fig.1)
. Remove injector harness plastic clips (IO Fig.1) from fuel rail.
. Remove fuel rail / injector assembly (1 1 Fig.1).
Issue 1 August 1994 6 X300 VSM

Fuel, Em i ssion Control & Engine
Management
J19 L76
Fig. 1
Remove injector to fuel rail retaining clips (1 Fig.1).
. Remove injector (2 Fig.1).
Remove fuel regulator retaining plate and fixings (3 Fig.1).
. Remove fuel regulator (4 Fig. 1 ).
. Remove and discard ‘0’ ring seals.
Refit in the reverse order of the removal procedure.
X300 VSM 7 Issue 1 August 1994

Fuel, Emission Control & Engine Management (V12)
5.2.4 PURGE CONTROL VALVE, RENEW
SRO 17.15.42 'A' BANK
SRO 17.15.43 'B'BANK
SRO 17.15.44 VEHICLE SET
Fig. 1
Remove
. Remove the left-hand headlamp relay cover (1 Fig.l), see Section 15.
. Remove the left-hand air cleaner element (2 Fig.1).
. Remove the right-hand air cleaner assembly (3 Fig.1).
Remove air box mounting bracket (4 Fig.1).
. Disconnect 'A' bank purge valve multi-plug (5 Fig.1).
. Release securing clip (6 Fig.1).
. Disconnect all hoses (7 Fig.1) from valve.
. Remove valve (8 Fig.1).
Refit the purge valve in the reverse order of the removal procedure.
Issue 1 August 1994 8 X300 VSM

Fuel, Emission Control & Engine Management (V12) ~~ ~
5.2.5
SRO
18.30.74 VEHICLE SET
IDLE SPEED CONTROL VALVE/ GASKETS, RENEW
SRO
18.30.73 VALVE- RIGHT HAND
SRO 18.30.76 GASKET
- RIGHT HAND
SRO
SRO 18.30.75 GASKET- LEFT HAND
18.30.72
VALVE
- LEFT HAND
Remove
. Disconnect battery.
. Drain coolant from radiator, see Section 4.2.
. Disconnect idle speed control valve multi-plug.
Disconnect all hoses linked to the idle speed control valve.
. Remove valve.
. Remove gasket.
Refit in the reverse order of the removal procedure.
5.2.6 FUEL CUT-OFF INERTIA SWITCH, RENEW
SRO
18.30.35
Remove
. Disconnect battery.
. Remove the 'A' post lower trim pad.
= Remove the EMS control module, see Section 15.
. Disconnect vehicle harness through-panel connector.
. Disconnect inertia switch multi-plug (Fig. 2).
9 Remove switch.
Refit in the reverse order
of the removal procedure. Fig.
1
Fig. 2
X300 VSM 9 Issue 1 August 1994

Also look for loose and rusted flange connections, loose or damaged exhaust shields
or clamp and loose or broken exhaust outlet pipe brackets.
6.1.2.1 Symptom Chart
I Condition I Possible Cause
Noises and exhaust fumes Exhaust leak.
Misaligned exhaust.
Loose clamps or fasteners.
Restricted exhaust system.
Electronic engine controls.
Fuel System.
Restricted exhaust system.
Engine lacking
power Ignition system.
Exhaust System (AJ16)
6.1.2 DIAGNOSIS AND TESTING
m: THE NORMAL OPERATING TEMPERATURE OF THE EXHAUST SYSTEM IS VERY HIGH. NEVER ATTEMPT
TO SERVICE ANY PART OF THE SYSTEM UNTIL IT HAS COOLED. EXHAUST GASES CONTAIN CARBON
MONOXIDE WHICH CAN BE HARMFUL TO HEALTH AND ARE POTENTIALLY LETHAL. LEAKS MUST BE
REPAIRED IMMEDIATELY.
NEVER OPERATE THE ENGINE
IN ENCLOSED AREAS.
External leaks in the exhaust system are often accompanied by noises and exhaust fumes, therefore a visual inspection
usually detects the location of the leak. When checking for exhaust leakage or noise, inspect the entire system for
burned
-out holes, loose or corroded clamps, muffler or exhaust inlet pipe.
Examine the under body for greyish
-white or black exhaust soot which indicates the exhaust leakage at that point.
The effect of a small leak can be magnified by holding a rag over the tailpipe outlet while listening to the leak.
If this is carried out, ensure that gases are not inhaled
-see WARNING.
When testing for a rattle or vibration condition it is helpful to use a rubber mallet. Tap on the exhaust components to
simulate the bouncing action of the exhaust while watching for exhaust-to-body /chassis contact.
6.1.2.2 Test A, Exhaust Leakage or Noise
Test Step
Step
1A Clamps and Brackets
Check for broken or loose clamps and/or exhaust
outlet pipe frame brackets.
Are clamps and exhaust outlet pipe frame brackets
OK?
Step 2A System Components
Check catalytic converters, muffler.
Are system components OK?
Step 3A Exhaust Manifold
Inspect exhaust manifold for loose fasteners and
cracks.
Is exhaust manifold OK?
Action
Refer to Test Step 1A.
Go to Test Step IB, Restricted exhaust system test. .-
Go to Test Step 1B
Result Action
yes
1
Go to Step 2A
no Service and renew as necessary.
Restart engine.
If noise still exists
go to Step 2
yes Go to step 3A
no Renew exhaust outlet pipe frame brackets, exhaust
inlet pipe and/ or muffler as necessary.
If noise still persists, go to Step 3
yes
no Go to Test Step 1B Restricted exhaust system test.
Tighten fasteners or renew exhaust manifold.
X300 VSM 5 Issue 1 August 1994

Automatic Transmission (V12 & AJl6 Supercharged) Pomrtrain
8.2.1 GENERAL DESCRIPTION
This section provides information relating to the Powertrain 4L80-E transmissions fitted to the 4,O liter supercharged
engine (4,OL SC) and to the 6,O liter engine (6,OL).
The Powertrain 4L80-E is a four-speed, high torque capacity, electronically controlled automatic transmission, which
comprises a torque converter with lock-up direct drive clutch and three planetary gear sets. Five multiple diskclutches,
one intermediate sprag clutch assembly, two roller clutch assemblies and two band assemblies provide the drive el- ements necessary for correct sequential gear engagement and operation.
The torque converter containing
a pump, a turbine (rotor), a stator assembly, and a clutch pressure disksplined to the
turbine, acts as a fluid coupling for smooth torque transmission from the engine. The converter also supplies addi- tional torque multiplication when necessary, and the torque converter clutch (TCC) pressure disk provides a mechan- ical direct drive or 'lock-up' above a certain speed in top gear for greater fuel economy.
Gearshift operations are controlled from the Transmission Control Module (TCM), which governs the electronically
controlled valve body situated within the transmission.
Three planetary gear sets provide reverse and the four forward ratios, the changing of which is fully automatic in rela
- tion to load, vehicle speed and throttle opening. The Transmission Control Module receives and integrates various ve- hicle sensor input signals, and transmits operating signals to the solenoids located in the control valve assembly.
These solenoids govern the transmission operating pressures, up-shift and down-shift gear selection patterns and
also the torque converter clutch operation by pulse width modulated control.
8.2.1.1 Gear Ranges
Selectable gear positions are: P - Park, R - Reverse, N - Neutral, D - Drive, 3, 2.
P - Park position of the shift lever provides a mechanical locking of the output shaft of the transmission, and as such,
must only be engaged when the the vehicle is stationary. In addition, and for
extra safety, the handbrake should also
be applied. It is necessary to have the ignition ON and the footbrake applied to move the shift lever from the Park
position. For ignition key removal the shift lever must be in the Park position. The engine can be started in the Park
position.
R - Reverse enables the vehicle to be operated in a rearwards direction. The engine cannot be started in the Reverse
position.
N
-Neutral position enables the engine to be started and operated without driving the vehicle. It also allows the vehicle
to be moved manually for access, ie for removal of the propeller shaft.
D
-Drive position allows the automatic selection of all four forward gear ratios during normal driving conditions for
maximum efficiency and fuel economy. On acceleration, down-shifts are obtained by depressing the accelerator pedal
or by manual selection. The engine cannot be started in this position.
3
- Manual third position allows automatic operation of the three lower gear ratios but inhibits selection of the fourth
ratio. This position is used for towing a trailer or negotiating hilly terrain when greater engine braking control is re- quired. The engine cannot be started in this position.
2 - Manual second position allows automatic operation of the two lower gear ratios but inhibits selection of the third
and fourth ratios. This position is used for heavy traffic congestion or negotiating hilly terrain when even greater en
- gine braking control is required than is provided by manual third. This ratio may be selected at any vehicle speed - even if the transmission is in third or fourth ratio, the transmission will immediately down-shift to second gear pro- vided the vehicle speed is below 137 km / h (85 mile / h). The engine cannot be started in this position.
N.g!b: With the Performance Mode switch in the NORMAL position, the vehicle will pull away in second gear. How- ever, if more than 75 per cent of throttle is applied when the vehicle speed is between zero and 13 km/ h (8 mile / h), then first gear will be selected. From 13 to 61 km/ h (8 to 38 mile/ h) first gear is obtainable by 'kick-down'.
In 'sport' mode thevehicle pulls away in first gear and the transmission operatesfully in all four forward gears.
X300 VSM 1 Issue 1 August 1994

Body Components & Trim .
SECTION CON TENTS
Sub-Section Tit /e SRO Page
I to V ............ Preliminary Pages ................................................................. i to v
13.1
............. General Description ................................................................. 1
13.2 ............. Doorand Fuel FillerFlap .............................................................. 2
13.2.1
............ Doors. Description ................................................................... 2
13.2.2
............ Front Door Trim Pad Veneer Panel. Renew ......................... 76.47.11 ............. 2
13.2.2.
...........
13.2.3 ............ Rear Door Upper Trim Pad. Remove For Access and Refit ............ 76.34.05/90 .......... 3
13.2.5.
........... Rear Door Window Lift Switch Veneer Panel. Renew ................ 76.47.34 ............. 3
13.2.6.
........... Rear Door Lower Trim Pad, Remove for Access and Refit ............. 76.34.06/90 .......... 4
13.2.7
............ Rear Door Lower Trim Pad, Renew ............................... 76.34.06 ............. 4
13.2.8.
........... Rear Door Armrest. Renew ...................................... 76.34.23 ............. 5
13.2.9 ............ Rear Door Pocket, Renew ....................................... 76.34.28 ............. 5
13.2.10 .......... Front Door Upper Trim Pad, Renew ..................................................... 6
13.2.11 ........... Front Door Lower Trim Pad, Renew ..................................................... 6
13.2.12 .......... DoorLock Barrel, Renew .............................................................. 6
13.2.13 Front
or Rear Door Lock Striker, Renew .................................................. 6
13.2.14
.......... Front or Rear Door Outer Handle Operating Rod, Renew ................................... 6
13.2.15 .......... FrontArmrest, Renew ................................................................. 7
13.2.16 .......... Front or Rear Armrest Support. Renew ................................................... 7
13.2.17 .......... Front Door Pocket. Renew ............................................................. 7
........................................................... 8
Rear
Door Trim
Pad Veneer Panel. Renew .......................... 76.47.12 ............. 2
13.2.4
............ Rear Door Upper Trim Pad, Renew ............................... 76.34.05 ............. 3
..........
13.2.18 .......... Fuel Filler Flap, Description
13.2.19
.......... Filler Flap and Hinge, Renew .......................................................... 8
13.2.20
.......... Filler Cap Retention Magnet. Renew .................................................... 8
.......... Filler Flap Latching Assembly, Renew ................................................... 8
13.2.21
13.3
............. Passenger Compartment ............................................................... 9
13.3.1
............ Console Assembly, Remove for Access and Refit .................... 76.25.01/90 .......... 9
13.3.2
............ Console Assembly, Renew (Daimler/ VDP) ........................ 76.25.07/50 ......... 10
13.3.3
............ Console Assembly, Remove for Access and Refit (Daimler/ VDP) ...... 76.25.01/91 ......... 12
13.3.4
............ Console Assembly, Renew ....................................... 76.25.01 ............ 13
13.3.5
............ Console Rear Extension Finisher, Renew ........................... 76.25.04 14
Selector Trim Finisher, Renew (3.2 Liter)
........................... 76.25.07 ............ 14
Modeswitch Finisher, Renew .................................... 76.25.09 ............ 15
13.3.10
.......... Radio Console, Renew .......................................... 76.25.15 ............ 16
Console Glove Box, Renew
...................................... 76.25.16 ............ 17
Console Glove Box Lid, Renew ................................... 76.25.18 ............ 18
.......... Console Glove Box Lid Hinge, Renew ............................. 76.25.20 ............ 19
13.3.14
.......... Cupholder Trim Panel, Renew .................................... 76.25.21 ............ 19
13.3.15 .......... Cupholder, Renew ............................................. 76.25.22 ............ 20
.......... Cupholder Latch, Renew ........................................ 76.25.23 ............ 20
Fascia Board, Renew ........................................... 76.46.01 ............ 21
13.3.6
............ Console
Rear Extension. Renew .................................. 76.25.05 ............ 14
13.3.7
............
13.3.8. ........... Selector Trim Finisher, Renew (4.0 Liter, 4.0 Liter SC and 6.0 Liter) ..... 76.25.07 ............ 15
13.3.9
............
............
13.3.11 ...........
13.3.12
13.3.13 ..........
13.3.16
13.3.17
..........
13.3.18 .......... Fascia Board. Remove for Access and Refit ......................... 76.46.01/90 ......... 24
X300 VSM i Issue 1 August 1994