oil breather JAGUAR X308 1998 2.G Workshop Manual
[x] Cancel search | Manufacturer: JAGUAR, Model Year: 1998, Model line: X308, Model: JAGUAR X308 1998 2.GPages: 2490, PDF Size: 69.81 MB
Page 302 of 2490
12. R
emove the final dr
ive nose plate.
1. Remove the final drive nose plate bolts (4)
2. Remove the final drive nose plate
13. Position the axle assembly on its LH side and support it on
wooden blocks
14 . Re
move the wishbone
1. Remove the fixing, stabilizer bar link to wishbone
2. Remove the pivot nut
3. Remove pivot
4. Note the position of and remove the front spacer and
rear washers
5. Remove the wishbone
15. Repeat for the opposite hand
16 . R
emove the wishbone tie assembly
1. Remove the wishbone tie to final drive fixings (2)
2. Remove the washers (2)
3. Remove the wishbone tie assembly
4. Remove the washers (2)
17. R
emove the tie rods
1. Remove the tie rod to final drive fixings (2)
2. Remove the tie rods to wide mounting bracket
fixings (2)
3. Remove the tie rods
4. Note the position of and remove the spacers
18. Position the assembly for access to the 'A' frame to final drive
fixings, noting that oil may issue from the breather
19. Remove the 'A' frame assembly
Page 920 of 2490
3.
Fit the hose and tighten the securing bolt.
42 . Conne
ct the transmission
oil cooler upper pipe.
1. Remove the blanking plugs from the pipe and the radiator.
Fit and
fully seat a new O-ring
seal to the pipe. Lubricate
the seal with clean transmission oil
2. Reposition and connect the union nut, upper cooler pipe to radiator.
43 . Conne
ct the transmission oil cooler lower pipe.
1. Remove the blanking plugs from the pipe and the radiator.
Fit and
fully seat a new O-ring
seal to the pipe. Lubricate
the seal with clean transmission oil
2. Reposition and connect the union nut, lower cooler
pipe to radiator.
44. Fit the twin fan and motor assembly. Refer to Operation
26.25.12.
45 . Connect
the radiator breather hose.
Re
po
sition the Quick-Fit hose (radiator to expansion tank)
and connect the hose to the radiator.
46. Fit the expansion tank to the vehicle.
1. Remove the pipe clamp if still in place and connect
the hose to the expansion tank.
Page 922 of 2490
to th
e throttle body.
51 . Co
nnect the intake tube to the throttle body.
1. Fit a new seal and connect the intake tube to the throttle body.
2. Fit the two bolts which secure the intake tube to the throttle body.
52 . Conne
ct the air cleaner cover.
F
it
the five clips which secu
re the air cleaner cover.
53 . Re
connect the breather pipe to the A-Bank camshaft cover.
1. Fit a new O-ring seal to the breather pipe.
2. Connect the breather pipe to the stub pipe.
54. Connect the air flow meter connector.
55. Fit a new Ty-strap to secures the vacuum pipe to the
induction elbow.
56. Refill the cooling system. Refer to Operation 26.10.01.
57. NOTE: When the engine is star ted from cold and run for a
short period only, before being swit ched off, a quantity of oil will
Page 973 of 2490
Engine Cooling - Radiator4.0L NA V8 - AJ27/3.2L NA V8 - AJ26
Re
moval and Installation
Remov
al
1.
O
pen the engine compartment and fit paintwork protection
sheets.
2. Di
sconnect the batt
ery ground cable.
R
emove the battery cover.
3. Drain the coolant from the radiator.
4. Depressurise the climate control system. Refer to Section 412-
03 Observe all safety warnings and precautions stated in that
section.
5. Release both gas struts, set the engine compartment cover
fully forward to the service acce ss position and support with a
wooden (or similar) strut - take care not to damage the engine
compartment cover or the radiator grille.
6. Remove the twin fan and motor assembly. Refer to Operation
26.25.12 in this section.
7. D
isconnect the radiator breather hose.
R
elease the Quick-Fit hose (radiator to expansion tank)
and disconnect the hose from the radiator.
8. Di
sconnect the transmission oil cooler lower pipe.
1. Disconnect and reposition the union nut, lower cooler pipe to radiator. Di sconnect the pipe.
2. Remove and discard the O- ring seal from the pipe
and fit blanking plugs to the pipe and to the union on
the radiator.
9. From above the vehicle, disconne ct the transmission oil cooler
upper pipe.
Page 977 of 2490
conde
nser.
2. Fit a new O-ring seal to the pipe. Lubricate the seal with A/C compressor oil.
3. Reconnect the pipe to the condenser and fit the securing bolt.
6. Conne
ct the transmission
oil cooler upper pipe.
1. Remove the blanking plugs and fit a new O-ring seal to the pipe. Lubricate the seal with automatic
transmission fluid, and re position the pipe and the
union nut to the radiator.
2. Connect and tighten the union nut.
7. Conne
ct the transmission lower cooler pipe to the radiator.
1. Remove the blanking plugs and fit a new O-ring seal to the cooler pipe. Lubricate the seal with automatic
transmission fluid
2. Reposition the pipe and th e union nut to the radiator.
Connect and tighten the union nut.
8. Connect
the radiator breather
hose (radiator to expansion
tank).
Conne
ct the hose to the radiator.
9. Connect the radiator coolant top hose.
1. Reposition and connect the top hose to the radiator.
2. Reposition the hose clip.
Page 980 of 2490
Engine Cooling - Radiator4.0L SC V8 - AJ26
Remo
val and Installation
Remov
a
l
1.
Op
en the engine compartment and fit paintwork protection
sheets.
2. Disc
onnect the batt
ery ground cable.
Re
move the battery cover.
3. Drain the coolant from the radiator.
4. Depressurise the climate control system. Refer to Section 412-
03 Observe all safety warnings and precautions stated in that
section.
5. Release both gas struts, set the engine compartment cover
fully forward to the service acce ss position and support with a
wooden (or similar) strut - take care not to damage the engine
compartment cover or the radiator grille.
6. Remove the twin fan and motor assembly. Refer to Operation
26.25.12 in this section.
7. Di
sconnect the radiator breather hose.
R
e
lease the Quick-Fit hose (radiator to expansion tank)
and disconnect the hose from the radiator.
8. Disc
onnect the transmission oil cooler lower pipe.
1. Disconnect and reposition the union nut, lower cooler pipe to radiator. Di sconnect the pipe.
2. Remove and discard the O- ring seal from the pipe
and fit blanking plugs to the pipe and to the union on
the radiator.
9. From above the vehicle, disconne ct the transmission oil cooler
upper pipe.
Page 1021 of 2490
CAUTI
ON: When probing connectors to take
measurements in the course of the pinpoint tests, use the adaptor kit,
part number 3548-1358-00.
• NOTE: When performing electrical voltag e or resistance tests, always use a digital multimeter (DMM) accurate to 3
decimal places, and with an up-t o-date calibration certificate. When testing resistance, always take the resistance of the
DMM leads into account.
• NOTE: Check and rectify basic faults before beginning diagnostic ro utines involving pinpoint tests.
Sy
mptom Chart
Sy
mptom
Possib
le source
Acti
on
Engine
cranks, but does not fire
Secu
rity system /Immobiliser
engaged
Thr
ottle contaminated
Harness damage
F
uel pump relay
Fue
l system
R
efer to service action S491
Contact dealer techn
ical
support for information
on security system. Chec k bulletins for throttle
cleaning procedure. For fuel pump relay circuit
tests, GO to Pinpoint Test E.
.
Check fuel pressure,
REFER to Section 310
-00
Fuel System
- Gen
eral
Informati
on
.
Chec
k for associated DTCs
. Check service actions.
Engine
cranks and fires, but will
not start
F
uel pump relay
Thr
ottle contaminated
Purge
valve
Fue
l pump
Engine coolan
t temperature
(ECT) sensor
Spark plugs
fouled
Ignition coil
failure(s)
Check f
or water ingress into
spark plug wells
HT sho
rt to ground (tracking)
check rubber boots for cracks/damage
Cyl
inder compression loss
(short-term. Refer to bulletin;
303-52)
R
efer to service action S491
F
or fuel pump relay tests,
GO to Pinpoint Test E.
.
Check bull
etins for throttle cleaning procedure. For
evaporative emissions tests,
REFER to Section 303
-1
3 Evaporative Emissions
. Chec
k fuel pressure,
REFER to Section 310
-00
Fuel System
- Ge
neral
Informati
on
.
F
or ECT sensor circuit tests,
REFER to Section 303
-14 Elec
tronic Engine
Controls.
For ign
ition system,
REFER to Section 303
-07
Engine Ignition
.
Check bulletins an d service
actions.
D
ifficult to start cold
Roc
hester valve
Batt
ery
Thr
ottle contaminated
Fue
l pump
Engine coolan
t temperature
(ECT) sensor
Purge
valve
Cyl
inder compression loss
(short-term. Refer to bulletin;
303-52)
Blocked part-load breather (
service action S474)
R
efer to service action S491
F
or rochester valve tests,
REFER to Section 303
-14 Elec
tronic Engine
Controls.
F
or battery information,
REFER to Section 414
-0
1 Battery, Mounting and
Cables.
Check bull
etins for throttle cleaning procedure.
Check fuel pressure,
REFER to Section 310
-00
Fuel System
- Ge
neral
Informati
on
.
F
or ECT sensor circuit tests,
REFER to Section 303
-14 Elec
tronic Engine
Controls.
For evaporat
ive emissions tests,
REFER to Section 303
-1
3 Evaporative Emissions
. Check bulletins an
d
service actions.
D
ifficult to start hot
Roc
hester valve
Purge
valve
Thr
ottle contaminated
Fue
l pump
Engine coolan
t temperature
(ECT) sensor
Blocked part-load breather (
service action S474)
Injec
tor leak
F
or Rochester
valve test,
REFER to Section 303
-14 Elec
tronic Engine
Controls.
Fo
r injector leak test, REFER to technical service
bulletin, 303-39. Check fuel pressure, For evaporative emissions components,
REFER to Section 303
-1
3 Evaporative Emissions
. F
or ECT sensor tests,
REFER to Section 303
-14 Elec
tronic Engine
Controls. D
ifficult to start after hot soak
(vehicle standing after engine has
reached operating temperature)
Roc
hester valve
Thr
ottle contaminated
Purge
valve
Fue
l pump
Engine coolan
t temperature
Page 1022 of 2490
(ECT) se
nsor
Blocked part-load breather
(s
ervice action S474)
Injec
t
or leak
Engine stalls
soon
after start
F
u
el pump relay
ECM relay Thr
o
ttle contaminated
CMP/CKP sen
s
or
synchronization malfunction
Harness Fuel
pump
MAF
s
ensor malfunction
Engine coolan
t
temperature
(ECT) sensor
Fue l
lines
Air leakage Fu
el pressure regulator
F
o
r fuel pump relay tests,
GO to Pinpoint Test E.
.
F or ECM
relay tests,
REFER to Section 303
-14 Elec tronic En
gine
Controls.
Check bull etins for throttl
e cleaning procedure. For
CMP/CKP sensor tests,
REFER to Section 303
-14 Elec tronic En
gine
Controls.
Chec k fu
el pressure,
REFER to Section 310
-00 Fu
el System
- Ge
n
eral
Informati
o
n
.
F or MAF sensor and
ECT sensor tests,
REFER to Section 303
-14 Electronic En
gine
Controls.
For fuel l
ine information,
REFER to Section 310
-01
Fuel Tank and Lines
.
F or i
ntake system information,
REFER to Section 303
-1 2
Intake Air Distribution
and F
ilt
ering
.
F o
r fuel pressure regulato
r check, GO to Pinpoint
Test D.
.
Engine h e
sitates/poor
acceleration
Fue l
pump
Exhaus
t gas
recirculation
(EGR)
Air leakage Stop lamp swi t
ch
Throttl
e
sensors
Throttl
e
motor
Spark plugs
fouled
Check f
o
r water ingress into
spark plug wells
Ignition coil fail
ure(s)
HT sho
rt to ground (tracking)
check rubber
boots for
cracks/damage
ECM failu r
e
Chec
k fu
el pressure,
REFER to Section 310
-00 Fu
el System
- Ge
n
eral
Informati
o
n
.
F o
r EGR information,
REFER to Section 303
-08 En gin
e Emission
Control.
F or i
ntake system information,
REFER to Section 303
-1 2
Intake Air Distribution
and F
ilt
ering
.
F or stop l
amp switch in
formation, refer to the
wiring diagrams. For throttle position sensor and throttle motor relay tests,
REFER to Section 303
-14 Elec tronic En
gine
Controls.
For ign i
tion system,
REFER to Section 303
-07 En
gine Ignition
.
Contact dealer techn i
cal
support for advice on
possible ECM failure.
Engine ba ckfiresFuel
pump
Air leakage MAF s
e
nsor
HO2 sensors Spark plugs
Check fo
r water ingress into
spark plug wells
HT short to ground (tracking) check rubber
boots for
cracks/damage
Ignition coil fail
ure(s)
Chec
k fu
el pressure,
REFER to Section 310
-00 Fu
el System
- Ge
n
eral
Informati
o
n
.
F or i
ntake system information,
REFER to Section 303
-1 2
Intake Air Distribution
and F
ilt
ering
.
For MAF and HO2
sensor circuit tests,
REFER to Section 303
-14 Electronic En
gine
Controls.
For igni
tion system,
REFER to Section 303
-07 En
gine Ignition
.
Engine
s
urges
Air leakage Fue
l
pump
Stop lamp swi
t
ch
MAF s
e
nsor
Harness Throttl
e
sensors
Throttl
e
motor
Spark plugs
Check fo
r water ingress into
spark plug wells
HT sho rt to ground (tracking)
check rubber
boots for
cracks/damage
ECM failu r
e
F
or i
ntake system information,
REFER to Section 303
-1 2
Intake Air Distribution
and F
ilt
ering
.
Chec k fu
el pressure,
REFER to Section 310
-00 Fu
el System
- Gen
e
ral
Informati
o
n
.
F or stop l
amp switch in
formation, refer to the
wiring diagrams. For MAF se nsor, throttle position
sensor and throttle motor relay tests,
REFER to Section 303
-14 Elec tronic En
gine
Controls.
For ign i
tion system,
REFER to Section 303
-07 En
gine Ignition
.
Contact dealer techn i
cal
support for advice on
possible ECM failure.
Page 1027 of 2490
Ignition coil
failure(s)
HT sho
rt to ground (tracking)
check rubber boots for cracks/damage
Spark plug
failure/fouled/incorrect
gap
Cy
linder compression low
F
uel delivery pressure (low/high)
F
uel injectors restricted/leaking
Fuel contamination
P
AS pulley bolts loose (see Service
Action S462)
W
orn camshaft/broken valve
springs
P
inpoint Test
A.
.
Check fuel
pressure,
REFER to Section 310
-00
Fuel
Sy
stem
- General
Information
.
Chec
k fuel injectors,
REFER to Fuel Injectors
- in t
his
section.
Check service actions.
P0301Misfire
detected, Cyl 1
R
EFER to possible sources for P0300
R
EFER to actions for P0300.
P0302Misfire
detected, Cyl 3
P0303Misfire
detected, Cyl 5
P0304Misfire
detected, Cyl 7
P0305Misfire
detected, Cyl 2
P0306Misfire
detected, Cyl 4
P0307Misfire
detected, Cyl 6
P0308Misfire
detected, Cyl 8
P0460F
uel level sense signal performance
Fue
l level sensor
to instrument
cluster circuits in termittent short
or open circuit
F
uel level sensor failure
Instrument cluster
faul
t (incorrect
fuel level data)
F
or fuel level sensor tests,GO to
Pinpoint Test B.
.
P1224Throttl
e control position error
Thro
ttle adaptations not performed
after battery disconnect
TP se
nsor disconnected
TP se
nsor to ECM sense circuits;
open circuit, hi gh resistance
Throttl
e motor relay failure
Th
rottle motor relay to ECM circuit
fault
Throttl
e motor relay power supply
open circuit
ECM ground circuit faul
t (relay coil
drive)
Throttl
e motor to ECM drive
circuits; open circuit, short circuit, high resistance
Throttl
e motor failure
Throttl
e body failure
Carry
out the throttle adaptation
procedure,
REFER to Section 303
-14
Electronic
Engine
Controls
.
ECM adaptations. For
throttle motor
relay tests, throttle position sensor tests, ECM ground tests,
REFER to Section 303
-14
Electronic
Engine
Controls
.
P1229Throttl
e motor control circuit
malfunction
Throttl
e motor disconnected
Throttl
e motor to ECM drive
circuits; short circuit or open circuit
Throttl
e motor failure
Fo
r throttle moto
r relay tests,
REFER to Section 303
-14
Electronic
Engine
Controls
.
P1250Engine
load malfunction
Air
intake leak
Engine
breather leak
TP se
nsor circuit fault (DTC P0121)
Throttl
e valve spring failure
F
or air intake system,
REFER to Section 303
-12
Intake Air
Distribu
tion and Filtering
.
Chec
k engine breather system for
leaks. For TP sensor tests,
REFER to Section 303
-14
Electronic
Engine
Controls
.
P1313Right-hand cylinders misfire rate
cat
alyst damage (this DTC will flag
only when accompanied by an
individual cylinder misfire DTC: P0300-P0308)
R
efer to possible causes for P0300-P0308
R
efer to actions for P0300-P0308.
P1314L
eft-hand cylinders misfire rate
catalyst damage (this DTC will flag only when accompanied by an
individual cylinder misfire DTC: P0300-P0308)
R
efer to possible causes for P0300-P0308
R
efer to actions for P0300-P0308.
Page 1190 of 2490
CAUTIO
N: When probing connectors to take
measurements in the course of the pinpoint tests, use the adaptor kit,
part number 3548-1358-00.
• NOTE: When performing electrical voltag e or resistance tests, always use a digital multimeter (DMM) accurate to 3
decimal places, and with an up-t o-date calibration certificate. When testing resistance, always take the resistance of the
DMM leads into account.
• NOTE: Check and rectify basic faults before beginning diagnostic ro utines involving pinpoint tests.
Sym
ptom Chart
Sym
ptom
(general)
S y
mptom (specific)
Possib
l
e source
Acti
o
n
No
n
-Start
Engine
does not cran
k
Starter relay ECM relay Batt
ery Park
/Neutral
switch
Starting system
Harness damage
Engine s
iezed
Check r
e
lay dates. Check
for DTCS. For starting
system,
REFER to Section 303
-06 Sta r
ting System
.
F or ECM
relay tests, GO to Pinpoint Test
AD.
.
F o
r battery information,
REFER to Section 414
-0 1
Battery, Mounting and
Cables.
Fo r
Park/Neutral tests, GO to Pinpoint Test AC.
. Fo
r engine information,
REFER to Section 303
-01 En
gine
.
Engine cranks, but does
not fireSecurity
syst
em /Immobiliser
engaged
Thr o
ttle contaminated
Harness damage
Fu
el pump relay
Fue
l
system
R
e
fer to service action
S491
Contact dealer techni
cal
support for information
on security system. For fuel system,
REFER to Section 303
-0 4
Fuel Charging and
Controls.
Check bull etins for throttl
e cleaning procedure.
Check service actions.
Engine cranks an d
fires,
but will not start
F u
el pump relay
Thr
o
ttle contaminated
Purge
val
ve
Fue
l
pump
Engine coolan
t
temperature
(ECT) sensor
Spark plugs
fouled
Ignition coil
fail
ure(s)
Check f
o
r water ingress
into spark plug wells
HT sh o
rt to ground
(tracking) check rubber
boots for cracks/damage
Cyli
nder compression loss
(short-term. Refer to bulletin; 303-52)
Re
fer to service action
S491
Fo
r fuel pump relay tests,
REFER to Section 303
-0 4
Fuel Charging and
Controls.
. Check bulletins for throttl
e cleaning procedure.
Check fuel pressure. Refe r to Technical service
bulletins. For ECT sensor tests, GO to Pinpoint Test C.
. Fo
r ignition system,
REFER to Section 303
-07 En
gine Ignition
.
Check bulletins an d service a
ctions.
Di
f
ficult to
start
D iff
icult to start cold
Roc
h
ester valve
Batt
ery Thro
ttle contaminated
Fue
l
pump
Engine coolan
t
temperature
(ECT) sensor
Purge val
ve
Cyl
i
nder compression loss
(short-term. Refer to bulletin; 303-52)
Blocked part-load breather (s
ervice action S474)
R
e
fer to service action
S491
For R
ochester valv
e test, GO to Pinpoint Test AE.
. Fo
r battery information,
REFER to Section 414
-0 1
Battery, Mounting and
Cables.
Check bull etins for throttl
e cleaning procedure.
Check fuel pressure. For ECT sensor circuit tests,
GO to Pinpoint Test C.
. F
or evaporative
emissions tests,
REFER to Section 303
-1 3
Evaporative
Emiss
i
ons
.
R e
fer to bulletins for co
mpression information,
and service actions for part-load breather procedure and compressions.
Diff
icult to start hot
Roc
h
ester valve
Purge
val
ve
Thr
o
ttle contaminated
F
or R
ochester valv
e test, GO to Pinpoint Test AE.
. F
or evaporative emissions tests,
REFER to Section 303
-1 3
Evaporative