1994 JAGUAR XJ6 automatic transmission fluid

Automatic Transmission (V12 & AJ16 Supercharged) Powortrain
Fixing
Drain plug to fliud pan
Fluid pan
to case
Pressure control solenoid bracket
to valve body
Solenoid to valve body
Speed sensor and bracket assembly to case
Valve body
to case 1 lubrication pipe
Valve body to case
I PSM
1. SERVICE TOOLS & EQUIPMENT
No Jaguar service tools are required for the operations covered by this Sub-section.
lightening Torque
(Nm)
34
24
8
8
11
11
11
Description
Tivoli Kay Adhesives No. 5696
sealant
UseS Notes
Exhaust system joints
Description
I To be issued I I
Data
Issue 1 August 1994 ii X300 VSM

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

Automatic Transmission (V12 & AJ16 Supercharged) Powertrain
1.
2.
3.
4.
5. 6.
7.
8.
9. 10.
11.
12.
13.
Torque converter
Turbine shaft
Pressure disk
Converter turbine
Converter stator
Variable force motor
solenoid
Fluid pan
Filter
Interior detent lever
Manual shaft
Control valve
Front band
Parking lock actuator
3 4667 i JU-134
14.
15.
16.
17.
18.
19.
20. 21.
22.
23.
24. 25.
Rear band
Sun gear shaft
Sun gear
Parking lock pawl
Transmission case
Output shaft
Rear extension housing
Rear internal gear
Output planetary carrier
assembly Reaction planetary
carrier assembly
'LO' roller clutch
Main shaft
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
Intermediate clutch Intermediate sprag clutch
Direct clutch
Forward clutch
Overdrive planetary carrier
assembly
Overdrive roller clutch
Overrun clutch
Fourth clutch
Pump assembly
Converter pump
Stator roller clutch
Output speed sensor
Fig.1 Powertrain 4L8O-E automatic transmission
0
0
0
Issue 1 August 1994 2 X300 VSM

Automatic Transmission (V12 & AJ16 Supercharged) Pomrtrain
8.2.2 TRANSMISSION INTERNAL HARNESS, RENEW
SRO 44.15.35
. Open the hood and fit a suitable fender cover.
. Raise the vehicle on a ramp,
. Drain the transmission lubrication system, see Sub-sec-
. Remove the fluid pan, see Subsection 8.2.14 (4,OL SC) or
U: Note the internal harness cable runs for assembly
purposes and remove the transmission internal har- ness multi-pin socket (1 Fig. I), discarding the '0' ring seal (2 Fig. 1); see Sub-section 8.2.19.
. Disconnect the internal harness plug from the 'A' Shift
. Disconnect the internal harness plug from the 'B' Shift
. Disconnect the internal harness plug from the pressure
. Disconnect the internal harness plug from the pulse width
. Disconnect the internal harness plug from the variable
force motor.
. Displace the internal harness from the retaining clips.
Remove the internal harness from the transmission unit.
. Place the harness aside.
. Clean all relevant parts.
. Fit the new internal harness to the transmission unit.
. Secure the internal harness to its retaining clips.
. Connect the internal harness plug to the variable force
. Connect the internal harness plug to the pulse width
. Connect the internal harness plug to the pressure switch
. Connect the internal harness plug to the 'B' Shift solenoid.
. Connect the internal harness plug to the 'A' Shift solenoid.
Fit a new internal harness multi-pin socket '0 ring, refit
the multi-pin socket to the main case and connect the ex- ternal harness, see Subsection 8.2.19.
. Refit the fluid pan, see Subsection 8.2.14 (4,OL SC) or
Sub-section 8.2.15 (6,OL).
. Lower the vehicle on the ramp.
. Refill the transmission unit with fluid, see Subsection 8.2.13.
Remove the fender cover and close the hood.
(4, OL SC AND 6,OL) e
tion 8.2.13.
Sub-section 8.2.15 (6,OL).
solenoid.
solenoid.
switch manifold.
modulator (TCC solenoid).
motor.
modulator.
manifold.
@
2
Fig 1
Issue 1 August 1994 X300 VSM 5

Automatic Transmission (V12 & AJ16 Supercharged) Powertrain
8.2.3
SRO 44.15.39
. Open the hood and fit a suitable fender cover.
9 Raise the vehicle on a ramp.
. Drain the transmission lubrication system, see Subsec-
. Remove the fluid pan, see Sub-section 8.2.14 (4,OL SC) or
. Remove the fluid filter, see Sub-section 8.2.18.
Disconnect the internal harness plug from the pressure
Release and remove the pressure switch manifold to valve
. Remove the manifold from the valve body.
. Retrieve the manifold to valve body '0' ring seals (Fig.1)
Clean the valve body manifold seating area.
. Fit new '0' ring seals to the grooves in a new pressure
Fit the manifold to the valve body.
. Fit and tighten the manifold to valve body securing bolts.
Connect the internal harness plug to the pressure switch
Refit the fluid filter, see Sub-section 8.2.18.
Refit the fluid pan, see Sub-section 8.2.14 (4,OL SC) or
. Lower the vehicle on the ramp.
. Refill the transmission unit with fluid, see Sub-section
. Remove the fender cover and close the hood.
PRESSURE SWITCH MANIFOL D, RENEW
(4,OL SC AND 6,OL)
tion 8.2.13.
Sub
-section 8.2.15 (6,OL).
switch manifold.
body securing bolts.
and discard.
switch manifold.
manifold.
Sub
-section 8.2.15 (6,OL).
8.2.13. Fig.
1
Issue 1 August 1994 6 X300 VSM

Automatic Transmission (V12 & AJ16 Supercharged) Powertrain
8.2.8 TEMPERATURE SENSOR, RENEW
(4,OL SC AND 6,011
The temperature sensor forms part of the internal wiring
harness. Should the sensor require replacement, a new wir- ing harness must be fitted. See Subsection 8.2.2.
8.2.9 VARIABLE FORCE MOTOR, RENEW
SRO 44.15.43
. Open the hood and fit a suitable fender cover.
. Raise the vehicle on a ramp.
. Drain the transmission lubrication system, see Sub-sec-
Remove the fluid pan, see Sub-section 8.2.14 (4,OL SC) or
Remove the fluid filter, see Subsection 8.2.18.
Disconnect the internal harness plug from the variable
Release and remove the motor retaining clamp to valve
. Remove the retaining clamp (2 Fig.1) and remove the
Fit a new variable force motor to the valve body.
CAUTIOI\I: Do not adjust the motor screw and ensure that
the motor filter is not damaged.
. Align the motor.
. Fit the motor to the valve body retaining clamp.
. Fit and tighten the motor retaining clamp securing screw.
Connect the internal harness
plug to the motor.
. Refit the fluid filter, see Sub-section 8.2.18.
. Refit the fluid pan, see Subsection 8.2.14 (4,OL SC) or
. Lower the vehicle on the ramp.
. Refill the transmission unit with fluid, see Subsection
(4,OL SC AND 6,011
tion 8.2.13.
Sub
-section 8.2.15 (6,OL).
force motor.
body securing screw (1
Fig.1).
motor (3 Fig.1) from the valve body and place aside.
Sub
-section 8.2.15 (6,OL).
8.2.13.
m Remove the fender cover and close the hood.
JU 596
Fig. 1
X300 VSM Issue 1 August 1994 10

Powortrain Automatic Transmission (V12 & AJl6 Supercharged)
8.2.10 PULSE WIDTH MODULATOR (TCC
SRO 44.15.44
. Open the hood and fit a suitable fender cover.
. Raise the vehicle on a ramp.
Drain the transmission lubrication system, see Sub-se
. Remove the fluid pan, see Subsection 8.2.14 (4,OL SC) or
. Remove the fluid filter, see Subsection 8.2.18.
. Disconnect the internal harness plug from the pulse width
. Remove the modulator to valve body retaining clip.
. Displace and remove the modulator from the valve body,
. Remove and discard the '0' ring seals from the modulator.
Place the modulator aside.
Fit new '0' ring seals to a new pulse width modulator.
. Lubricate the '0' ring seals.
. Fit and seat the modulator, in the correct orientation, to the
. Fit the pulse width modulator to valve body retaining clip.
. Connect the internal harness plug to the modulator.
. Refit the fluid filter, see Subsection 8.2.18.
. Refit the fluid pan, see Subsection 8.2.14 (4,OL SC) or
. Lower the vehicle on the ramp.
. Refill the transmission unit with fluid, see Subsection 8.2.13.
. Remove the fender cover and close the hood.
SOLENOID), RENEW (4,OL SC AND 6,OL) a
tion 8.2.13.
Subsection 8.2.15
(6,OL).
modulator.
noting the orientation.
valve body using a twisting motion.
Sub
-section 8.2.15 (6,OL).
X300 VSM 11 Issue 1 August 1994

Automatic Transmission (V12 & AJ16 Supercharged)
8.2.11 'A' SHIFT SOLENOID, RENEW
(4,Ol SC AND 6,OL)
SRO 44.15.45
Open the hood and fit a suitable fender cover.
Raise the vehicle on a ramp.
. Drain the transmission lubrication system, see Sub-sec-
Remove the fluid pan, see Sub-section 8.2.14 (4,OL SC) or
= Disconnect the internal harness plug from the 'A' Shift
. Release and remove the 'A' Shift solenoid to valve body
. Remove the solenoid from the valve body (Fig. 1).
= Remove and discard the '0' ring seal from the valve body.
. Place the solenoid aside.
. Fit a new '0 ring seal to a new 'A' Shift solenoid.
. Lubricate the '0' ring seal.
Fit the solenoid to the valve body using a twisting motion.
. Fit and tighten the solenoid to the valve body using a new
. Connect the internal harness plug to the solenoid.
. Refit the fluid pan, see Sub-section 8.2.14 (4,OL SC) or
. Lower the vehicle on the ramp.
. Refill the transmission unit with fluid, see Sub-section
Remove the fender cover and close the hood.
tion
8.2.13.
Sub
-section 8.2.15 (6,OL).
solenoid.
securing screw.
securing screw.
Sub
-section 8.2.15 (6,OL).
8.2.13.
Fin. 1
Issue 1 August 1994 12 X300 VSM