cooling JAGUAR X308 1998 2.G Workshop Manual
Page 11 of 2490
Valve
Co
ver
LH (12.29.43)
Valve
Cover RH (12.29.44)
Valve
Cover Gasket LH (12.29.40)
Valve
Cover Gasket RH (12.29.41)
Valve
Springs LH
Valve
Springs RH
Variable
Camshaft Timing Oil Con
trol Unit LH (12.65.71)
Variable
Camshaft Timing Oil Control Unit RH (12.65.70)
Variable
Camshaft Timing Oil Control Unit Housing LH (12.65.52)
Variable
Camshaft Timing Oil Control Unit Housing RH (12.65.51)
303‐03A : Engine Cooling
Descriptio
n and Operation
Engine Cooling
Diagnosis and Testing
Engine Cooling
Related Faults / Codes
DTC P0116 ECT circuit range / performance problem
DTC P0125 Insufficient coolant temperature for closed loop fuel control
DTC P0117 ECT circuit low input
DTC P0118 ECT circuit high input
DTC P1474 Intercooler coolant pum
p relay malfunction
Pinpoint test A: P0116, P0125
Pinpoint test B: P0117
Pinpoint test C: P0118
Pinpoint test D: P1474
General Procedures
Cooling System Draining, Filling and Bleeding ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 –
AJ27
Cooling System Draining, Filling and Bleeding ‐ 4.0L SC V8 ‐ AJ26
Cooling Sy
stem Draining and Vacuum Filling
Removal and Installation
Removal
Engine ‐ Re m
oval
(12.41.01)
Installation
Engine ‐ Installation (12.41.01)
Page 12 of 2490
Coolant E x
pansion
Tank (26.15.01)
Coolant Outlet Pipe (26.31.08)
Cooling Fan Motor (26.25.24)
Cooling Fan Motor and Shroud (26.25.25)
Cooling Fan Motors (26.25.25)
Cooling Fan Shroud (26.25.30)
Engine Coolant Level Switch (26.40.11)
Radiator (26.40.01) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Radiator (26.40.01) ‐ 4.0L SC V8 ‐ AJ26
Radiator Lower Hose (26.30.07) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Radiator Lower Hose (26.30.07) ‐ 4.0L SC V8 ‐ AJ26
Radiator Upper Ho
se (26.30.01) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Radiator Upper Hose (26.30.01) ‐ 4.0L SC V8 ‐ AJ26
Thermostat (26.45.07) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Thermostat (26.45.07) ‐ 4.0L SC V8 ‐ AJ26
Thermostat Housing Cover (26.
45.22) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Thermostat Housing Cover (26.45.22) ‐ 4.0L SC V8 ‐ AJ26
Thermostat Housing Cover Seal (26.45.20) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Thermostat Housing Cover Seal (26.45.20) ‐ 4.0L SC V8 ‐ AJ26
Water Pump (26.50.
01) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Water Pump (26.50.01) ‐ 4.0L SC V8 ‐ AJ26
Water Pump Pulley (26.50.05) ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ27
Water Pump Pulley (26.50.05) ‐ 4.0L SC V8 ‐ AJ26
303‐03B : Supercharger Cooling
Removal and Installation
Water Pump
303‐04: Fu
el Charging and Controls
Diagnosis and Testing
Fuel Charging and Controls
Inspection and Verification
Driver Information Chart
Default mode Definitions
Diagnostic Trouble Code (DTC) index
Pinpoint Tests
Page 17 of 2490
307‐01B : A u
tomatic
Transmission/Transaxle ‐ 4.0L SC V8 ‐ AJ26
Specification
Description and Operation
Transmission Description
Diagnosis and Testing
Diagnostic Strategy
General Procedures
Transmission Fluid Drain and Refill (44.24.02)
In‐Vehicle Repair
Extension Housing Seal (44.20.18)
Main Control Valve Body (44.40.01)
Transmission Fluid Filter (44.24.07)
Transmission Fl
uid Pan Gasket (44.24.05)
Transmission Internal Wiring Harness Electrical Connector O‐Ring Seals
(44.24.20)
Transmission Support Insulator (12.45.04)
Removal
Transmission (44.20.01)
Disassembly and Assembly of Subassemblies
Input Shaft Seal (44.32.07)
Torque Converter (44.17.07)
Installation
Transmission (44.20.01)
307‐02A : Transmission/Transaxle Cooling ‐ 3.2L NA V8 ‐ AJ26/4.0L NA V8 ‐ AJ
27
Description and Operation
Transmission Cooling
307‐02B : Transmission/Transaxle Cooling ‐ 4.0L SC V8 ‐ AJ26
Description and Operation
Transmission Cooling
307‐05A : Automatic Transmission/Transaxle External Controls ‐ 3.2L NA V8 –
AJ26/4.0L NA V8 ‐ AJ27
Description and Operation
External Controls
Page 44 of 2490
Electrically Programmable
R
ead-Only memory
EPROM
Ele
c
tronic Secondary Air
Injection
EAIRA p
ump-driven system for providing seco
ndary air using an electric air pump
Engine C
ontrol Module
ECM
End of dashEODR
e
ferring to a vehicle fascia, eg EOD air vent
Engine
C
oolant Level
ECL
Engine
C
oolant
Temperature
ECT
ECT Sen s
or
ECTSTherm
i
stor which provides engine coolant temperature signal to the ECM to
trigger enrichment circuits which increase injector 'on' time for cold start and
warm-up
Engine s
peed
RP
M
Environ m
ental Protection
Agency
EPA
Evaporative EmissionEVAPSy stem designed to prevent fu
el vapor from escaping into the atmosphere.
Typically includes a charcoal filled canister to absorb fuel vapor
Evaporative Emission
Control ValveEVAPP
Exhaust G
as Recirculation
EGRSys
t
em which reduces NOx emissions by adding exhaust gases to the
incoming fuel/air charge
Exhaus t G
as Recirculation
Solenoid Vacuum Valve
EGRS
Exhaus t G
as Recirculation
Temperature Sensor
EGRT Sen s
or
Exhaus
t G
as Recirculation
Valve
EGRV
F
F a
n Control
FCEngine
cooling fan control
F
e
deral Motor Vehicle
Safety Standard (US)
FMV S
S
Fi
gur
e
Fi
g.Illustrati
on reference
Flash
E
lectrically Erasable
Programmable Read-Only
Memory
FEE PR
OM
Flash
E
rasable
Programmable Read-Only
Memory
FEP R
OM
Flywhee
l
Sensor
CKFSSens
or moun
ted so as to be
triggered by each flywheel ring gear tooth to give
an engine speed signal
Fue l
Injectors
FISol
e
noid operated devices that spray a metered quantity of fuel into the inlet
ports
F u
el Pressure Regulator
Control
FP RCControls fuel pressure regu l
ator; used primarily to
give extra fuel at cold
start-up
Fue l
Pump
FP
Fue
l
Pump Monitor
FP
MMonitors operation of fuel pump
Fue l
Pump Relay
FP
R
Fu
el rich/lean
Q
u
alitative evaluation
of air/fuel ratio based on a ratio known as
stoichiometry, or 14.7:1 (Lambda)
F u
ll Scale Deflection
FSDTh
e
maximum indication point on
an analogue meter or gauge
G
Gene
rator
GENRot
a
ting machine which converts mechanical energy into electrical energy
G
r
amme centimeter
gcm
Gramm
e
(force)
gf
Gramm
e
(mass)
g
GroundGNDEle
c
trical conductor used
as a common return for an electrical circuit or
circuits, and with a relative zero potential
H
Hard f a
ult
A
fau
lt currently present in the system
HeadlampHL
Heat
ed Oxygen
Sensor
HO2SElectrically
h
eated oxygen sensor which induces fueling corrections
Hertz (frequency)HzFrequ
e
ncy, one cycle per second
High
Moun
ted Stoplamp
HMSL
Page 67 of 2490
Front Suspension -
Lubri
cants, Fluids, Sealants and Adhesives
Press-In Loads
Torques
UnitS
pecification
Loctite27
0
Greas
e
Shell Retin
ax 'A'
Greas
e
Castro
l 'NTR'
Com
ponent
Kn
Ball join
t to upper wishbone
25
- 50
B
all joint to lower wishbone
25
- 50
Com
ponent
Nm
N
ut - ball joint, upper wishbone to vertical link.
60
-80
N
ut - ball joint, lower wishbone to vertical link.
60
-80
Nu
t - fulcrum bolt, upper wishbone.
60
-80
N
ut - ball joint, tie rod to steering arm.
71
-85
Bol
t - wheel speed sensor to vertical link.
8-1
0
Bol
t - front mounting to crossbeam.
22
-28
Bolt
- mounting , stabilizer bar.
30
-40
N
ut - link arm ball joint to stabilizer bar.
60
-80
Bolt
- mounting, steering rack to crossbeam.
41
-54
B
olt - front mounting, crossbeam to body.
22
-28
Bol
t - spring pan to lower wishbone.
70
-90
N
ut - shock absorber to upper mounting
(vehicles with adaptive damping).
16
-18
Nu
t - shock absorber to upper mounting (vehicles without adaptive damping).
30
-40
N
ut - shock absorber lower to wishbone.
43
-57
B
olt - engine Hydramount to crossbeam.
34
-46
B
olt - crossbeam rear mounting to body.
13
1-185
Bol
t - generator cooling du
ct deflector to crossbeam.
17
-23
N
ut - lower steering column to pinion shaft.
22
-28
N
ut - hub, speed sensor rotor.
27
0-330
B
olt - shield, brake disc.
9-1
2
Bol
t - lower wishbone, front arm to rear arm.
77
-103
Nu
t - stabilizer bar link arm to wishbone bracket.
41
-54
N
ut - wishbone front
eccentric bolt.
11
3-153
Nu
t - wishbone rear
eccentric bolt.
11
3-153
N
ut - fulcrum shaft, upper wishbone.
60
-80
Bolt -
power steering pi
pes to pinion housing.
9-1
2
Page 117 of 2490
Front Suspension - Fro
nt Stabilizer Bar
Re
moval and Installation
Materials
S
pecification
Cas
trol NTR
Remov
al
Na
me
R
ubber Suspension Insulator Lube
1. Raise front of vehicle and support on stands. Refer to Section
100-02.
2. R
emove generator front cooling duct.
Re
move bolt.
Move duct rea
rwards to rele
ase tang from undertray.
R
elease front duct from rear vertical duct.
3. R
emove scrivets or screws se
curing undertray to bumper
cover. Discard scrivets.
4. R
emove and discard tiestrap securing undertray to crossbeam
brace.
5. At each side of vehicle, remo ve and discard scrivet securing
undertray to wheelarch liner.
Page 122 of 2490
Front Suspension - Front Stabilizer B
ar Bushing
Re
mo
val and Installation
Materials
S p
ecification
Cas
t
rol NTR
Remov
a
l
Na
m
e
R
u
bber Suspension Insulator Lube
1. Raise front of vehicle and support on stands. Refer to Section
100-02.
2. Re
move generator front cooling duct.
Re
mo
ve bolt.
Move duct rea
r
wards to rele
ase tang from undertray.
Re
lease front duct from rear vertical duct.
3. Re
move scrivets or screws se
curing undertray to bumper
cover. Discard scrivets.
4. Re
move and discard tiestrap securing undertray to crossbeam
front brace.
5. At each side of vehicle, remo ve and discard scrivet securing
undertray to wheelarch liner.
Page 340 of 2490
Front Disc Brake - Front Disc Brake
Description and Operation
The brake disc is mounted on the wheel studs and is clamped between the wheel and hub. Cooling ducts run through the
center of the brake disc to provide the required ventilation to keep the disc cool under operating conditions.
The caliper carrier, which is se cured to the vertical link by two bolts, carries the single-pis ton caliper housing. The caliper
housing is secured to the caliper carrier by two guide-pins and an anti-rattle spring. When the brakes are applied the
caliper-housing piston pushes th e brake pad in front of it, towards the brake di sc. This movement forces the caliper housing
to move along the guide-pins, in the oppo site direction of the piston, to apply the second brake pad. The brake disc is
therefore gripped between the two pads. As brake pressure is increased the grip on the brake disc is increased to slow-down
the rotation of the road wheel.
The disc brakes requ ire no adjustment.
It
e
m
Par
t
Number
De
scr
iption
1—B
r
ake Disc
2—Caliper Housin
g
3—Caliper Carrier
4—Brake Pads
5—Guide P i
ns
6—Du
st
Covers
7—An
ti
-rattle Spring
8—Du
st
Shield
9—Brake Hos
e
10—Bleed Nipp
le
Page 341 of 2490
• C
AUTIONS:
The Brembo caliper is aligned to the brak e disc when it is first installed to the vehicle, therefore, care must be taken
not to disturb this alignment. When removi ng the caliper; remove the bolts that secure the anchor bracket to the vertical
link only. DO NOT loosen any other caliper bolts.
Do not loosen bolts securing brake disc to disc mounting.
Brembo calipers and discs provide higher -performance braking using the existing hydraulic braking system. The brakes are
installed to the vehicle using unique vertical links, hubs, hydraulic hoses and disc shields.
The front brake disc consists of a ventilated, cross-drilled disc, bolted to a disc carrier. The disc assemb ly is mounted on the
wheel studs and clamped be tween the wheel and hub.
A unique feature of the front disc is th e slanted (non radial) ventilation webs which lean the opposite-way to the disc's
direction of rotation. This design enables he at generated by the disc to be dispersed by air entering at the disc's center and
being forced outwards through the cooling ducts.
Due to the use of fixed calipers in place of the standard floating caliper, certain lateral dimensions on the vertical link and
It
em
Par
t Number
De
scription
1—B
rake Disc
2—Caliper
3—Anch
or Bracket
4—Anchor Pl
ate to Vertical Link - Bolts
5—Brake Pad
s
6—Guide P
ins
7—Anti-r
attle Spring
8—Di
sc Shield
9—Brake Hos
e
10—Bleed Nipp
les
Front Disc Brake—
Brembo
Page 365 of 2490
Rear
Disc Brake - Rear Disc Brake
Description an
d Operation
The brake disc is mounted on the wheel studs and is clamped between the wheel and hub. Cooling ducts run through the
center of the brake disc to provide the required ventilation to keep the disc cool under operating conditions.
The caliper carrier, which is se cured to the hub carrier by two bolts, carries the single-piston caliper housing. The caliper
housing is secured to the caliper carrier by two guide-pins and an anti-rattle spring. When the brakes are applied the
caliper-housing piston pushes th e brake pad in front of it, towards the brake di sc. This movement forces the caliper housing
to move along the guide-pins, in the oppo site direction of the piston, to apply the second brake pad. The brake disc is
therefore gripped between the two pads. As brake pressure is increased the grip on the brake disc is increased to slow-down
the rotation of the road wheel.
The disc brakes requ ire no adjustment.
It
em
Par
t Number
De
scription
1—B
rake Disc
2—Caliper Housin
g
3—Caliper Carrier
4—Brake Pad
s
5—Guide P
ins
6—Du
st Covers
7—An
ti-rattle Spring
8—Du
st Shield
9—Brake Hos
e
10—Bleed Nipp
le