1998 JAGUAR X308 catalytic converters

Repeat
the above procedure for the other side.

16 . Connect
the driveshaft (propshaft
) flange to the transmission
output flange.
F i
t the three bolts which secure the flange.

17 . F
it the downpipe catalytic converters.
1. Fit a new gasket to the downpipe flange and fit the
downpipe assembly. to the manifold.
F i
t the bolts which secure
the downpipe to the lower
mounting bracket.
Repeat the above operation
s
for the other downpipe
catalytic converter.

18 . F
rom above the vehicle, tighte
n the manifold flange nuts, A-
Bank and B-Bank flanges, to the correct torque.
19. Fit the front muffler assembly.
Locate the front muf fler into the
downpipe catalytic
converters.
20. Move the front muffler forwar d to allow the intermediate
mufflers to be connected.

KS fail
ure
P0335Cranksh
a
ft positi
on (CKP) sensor
circuit malfunction
CK P
sensor disconnected
CKP sensor air gap
i
n
correct/foreign matter on face
CKP sensor sen
s
ing circuit open
circuit, short circuit to ground,
short circuit to high voltage
CKP s e
nsor failure
F
or CKP sensor circ ui
t tests,GO to
Pinpoint Test N.
.
P0340Camshaft position
(CMP) sensor
circuit malfunction
CM P
sensor disconnected
CMP sensor air gap
i
n
correct/foreign matter on face
CMP sensor sen
s
ing circuit open
circuit, short circuit to ground,
short circuit to high voltage
CMP s e
nsor failure
F
or CMP sensor circ ui
t tests,GO to
Pinpoint Test O.
.
P0351Igniti
on coil primary/secondary
circuit malfunction, cyl 1
ECM to ignit
ion module primary
circuit open circuit, short circuit to
ground, high resistance
Igniti
on module to ignition coil
primary circuit open circuit, short
circuit to ground, high resistance
Ignition modu le
ground circuit
open circuit, hi gh resistance
Ignition coil fail
ure
Ignition modul
e
failure
F
o
r ignition circuit tests,
REFER to Section 303
-07 En
gine
Ignition. P0352Ignit
i
on coil primary/secondary
circuit malfunction, cyl 3
P0353Ignit i
on coil primary/secondary
circuit malfunction, cyl 5
P0354Ignit i
on coil primary/secondary
circuit malfunction, cyl 7
P0355Ignit i
on coil primary/secondary
circuit malfunction, cyl 2
P0356Ignit i
on coil primary/secondary
circuit malfunction, cyl 4
P0357Ignit i
on coil primary/secondary
circuit malfunction, cyl 6
P0358Ignit i
on coil primary/secondary
circuit malfunction, cyl 8
P0400Exhaus t gas
recirculation (EGR)
flow malfunction
EGR valve c
onnector pins high
resistance
EGR pipe/exhaust manifol
d leak
EGR pipe blocke

d
EGR valve st

uck open/closed,
blocked
EGR valve fai
lure
For EGR
pinpoint t
ests,
REFER to Section 303
-08 En
gine
Emission Control.
P0405Exhaus
t gas
recirculation (EGR)
drive circuits open circuit
EGR valve power supply circuit
o p
en circuit
EGR valve t
o
ECM drive circuit pair
- EGR pins 1/3, 4/6 open circuit,
high resistance
EGR val v
e failure (stepper motor
open circuit)
For EGR pinpoint t
ests,
REFER to Section 303
-08 En
gine
Emissi
on Control.
P0406Exhaus t gas
recirculation (EGR)
drive circuits short circuit
EGR valve t o
ECM drive circuit pair
- EGR pins 1/3, 4/6 short circuit to
ground or high voltage
EGR val v
e failure (stepper motor
short circuit)
For EGR pinpoint t
ests,
REFER to Section 303
-08 En
gine
Emissi
on Control.
P0420Right-
hand catalytic converter
efficiency below threshold
HO2S di
sconnected.
HO2
S
to ECM wiring fault.
HO2
S
heater to ECM wiring fault.
HO2
S
heater failure.
HO2
S
failure.
Cat
a
lyst monitor sensor failure.
Catal
y
tic converter failure.
R
e
fer to pinpoint tests for components

listed. Visually inspect catalytic
converters.
P0442Evaporati v
e emissions system
(EVAP) leak detected
Fue l
filler cap missing
Fu

el filler cap seal faulty
EVAP system
leak (can
ister
damage, pipework damage)
EVAP v a
lve to ECM drive circuit
open circuit, short circuit, high
resistance
EVAP valve to engine pu rge pipe
damaged/blocked/leaking
EVAP ope r
ating vacuum hose
F
or evaporati
ve emissions pinpoint
tests,
REFER to Section 303
-1 3
Evaporative

Emissi
ons
.

Automatic Transmission/Transaxle - 4.0L SC V8 - AJ26 - Input Shaft Seal
Disassembly and Assembly of Subassemblies


Special Tool(s)

Oil seal replacer
307-378
1. Disconnect the battery ground lead.
2. Remove the air intake / MAFM assembly, refer to Operation
19.10.30.
3. Raise the vehicle for access.
4. Remove the front muffler, 30.10.18
5. Remove the RH and LH catalytic converters, refer to Operation
17.50.09 and 17.50.10.
6. Drain the transmission fluid, refer to Operation 44.24.02.
7. Remove the transmission unit, refer to Operation 44.20.01.
8. Remove the torque converter fro m the transmission unit, refer
to Operation 44.17.07.

9. Remove the front oil seal.
Using a proprietary tool remove the seal, taking care not
to damage the shaft or bore diameters.
10. Installation is the reverse of the removal procedure noting
that:

11. Fit the oil seal.
1. Lubricate the housing seal bore.
2. Lubricate the outside diameter of the seal.
3. Using seal replacer 307 - 379, drive the seal squarely into place.

All vehicles are fitted with a stainless steel exhaust system which features:
Low back-pressure gas flow. Catalytic converters for mark ets having unleaded fuel. Front muffler common to the left-hand and right-hand engine cylinder banks.
Downpipe Catalytic Converter Assembly

Ex
haust System - Front Muffler4.0L
NA V8 - AJ27/3.2L NA V8 - AJ26
Remo
val and Installation
Remov
a
l
Installation
1. Ra
ise the vehicle on a ramp.

2. Move the front muf f
ler forwar
d to allow the intermediate
mufflers to be displaced.
Slac ken t
he clamps (left-hand and right-hand sides),
catalytic converter to front muffler.

3. Slacken the clamps (left-ha nd and right-hand sides),
i
ntermediate mufflers to front muffler.
4. Remove the front muffler.
Di
sconnect the front muffler
from the intermediate
mufflers and then from the downpipe catalytic converters.

5. Clean and inspect al l ex
haust joints.
1. Fit the front muffler.
Fi
t the front muffler fully into the downpipe catalytic
converters and then slide it rearward to engage the
intermediate mufflers.

2. Correctl
y position the front muffl
er in the catalytic converters
to align the correct reference / index indicator ring..
Tigh ten th
e clamps (left-hand
and right-hand sides), front
muffler to catalytic converters.
3. Correctly position the intermedia te mufflers to the front muffler
to align the correct refere nce / index indicator ring.

Ex
haust System - Front Muffler4.0L SC V8 - AJ26
Re
mo
val and Installation
Remov
a
l
Installation
1. Ra
ise the vehicle on a ramp.

2. Separate the front muf f
ler flan
ge joints from the downpipe
catalytic converters.
Slac ken t
he flange nuts (left-hand and right-hand sides),
catalytic converter to front muffler.

3. Slacken the clamps (left-ha nd and right-hand sides),
i
ntermediate mufflers to front muffler.
Move both i
n
termediate mufflers rearwards, as far as
possible.
4. Remove the flange nuts (lef t-hand and right-hand sides),
catalytic converter to front muffler.

5. Re
move the bolts which secure th
e front muffler rear mounting
to the rear of the gearbox.
6. Remove the front muffler.
Di
sconnect the front muffler fr
om each downpipe flange.
Di
sconnect the front muffler
from the intermediate
mufflers and remove it.
7. Remove the gasket from each front flange joint.
8. Clean and inspect al l exhaust joints.
1. Fit the front muffler.

F
it the front muffler fully into
the intermediate mufflers.

2. Con
nect the front muffler flanges to the catalytic converters.
F

it a new gasket to each flange.
Con

nect the front muffler flanges to the catalytic
converters; move the front muffler / intermediate
mufflers assembly forwards.
Tigh
ten the flange nuts (left-hand and right-hand sides),
front muffler to catalytic converters.

3. F
it the bolts which secure the front muffler rear mounting to
the rear of the gearbox.

4. Re
position the intermediate mu
fflers to the front muffler to
align the correct referenc e / index indicator ring.
Ti
ghten the clamps (left-han
d and right-hand sides),
intermediate mufflers to front muffler.
5. Lower the ramp.

Exhaust System - Intermediate Muffler LH4.0L NA V8 - AJ27/3.2L NA V8 -
AJ26
Re mo
val and Installation
Remova

l
1.
Ra
ise the vehicle on a four-post ramp.
2. Raise the rear of the vehicle bo dy and support on two stands,
located under the re ar jacking points.

3. Disc
onnect the intermediate
muffler from the rear muffler.
Slacken the securi
ng clamp, re
ar muffler to intermediate
muffler and separate the in termediate muffler from the
rear muffler.

4. Move the front muf f
ler forwar
d to allow the intermediate
muffler to be removed.
Sl acke
n the securing clamps (left-hand and right-hand
sides) front muffler to downpipe catalytic converters.
Move the front muf f
ler
assembly forward.

5. Re
move the intermediate muffler.
Sl
acken the securi
ng clamp, front muffler to intermediate
muffler and separate the in termediate muffler from the
front muffler.
6. Remove the muffler assembly from the axle carrier and from
the over-axle mounting rubber.