1998 JAGUAR X308 VVT

R
emove fuse F12
1
W

ith EM015, EM014, PI031 or (PI032) disconnected,
measure the voltage between EM015/009 (EM015/008)
and EM014/009
2
0 V?

Yes Reconnect EM015 and EM0 14 and replace fuse F12
GO to B4
No Inspect EM015, PI031 or (PI032) for bent / pushed back
pins or locate and repair the harness / connector
PI001/016 or (PI001/027) Test the system for normal
operation.
B4
: CHECK B+ AT VVT SOLENOID

Pinpoint test C: P1396
VVT solenoid malfunction
W
i
th EM015, EM014 PI031 and PI032 disconnected,
measure the insulation resistance between EM015/009
and EM015/008
1
I s
the resistance > 10 MOHM?
Yes Reconnect all connectors
GO to B7
No Inspect EM015 and PI031 (PI032) for corrosion, bent /
pushed back pins or locate and repair the harness /
connector PI001/016 (PI001/027). Test the system for
normal operation.
B7: EN
D
Perform
a
ppropriate service drive cycle and check for the
presence of DTC
1
Has th
e fault code cleared?
Yes STOP
No Contact Jaguar Service
PINPOINT TES
T C : P1396 VVT SOLENOID MALFUNCTION
T
E
ST CONDITIONS
D
E
TAILS/RESULTS/ACTIONS
C1
: RETRIEVE DTC
S
•
NOTE
: Battery and or ECM disconnection prior to scanning wi
ll erase all data, ensure that the correct DTC is present.

Conne
ct the scan tool
1
Have the DTC(s) and fr

eeze
frame data been recorded?
Yes GO to C2
C2
: CHECK VVT COIL CONTINUITY
Wi

th VVT connector PI032 disconnected, measure the
resistance between the pins 1 and 2 at the VVT actuator
1
I
s the resistance >20 OHM?
Yes Renew the VVT solenoid and te st the system for normal
operation.
No GO to C3
C3
: CHECK SHORT TO B+

Re
move fuse F12
1
W
i
th EM015, EM014, PI031 and PI032 disconnected,
measure the voltage between EM015/008 and
EM014/009
2
0 V?
Yes

Reconnect EM015 and EM0 14 and replace fuse F12
GO to C4
No Inspect EM015, PI001 or PI032 for bent / pushed back
pins or locate and repair the harness / connector. Test the
system for normal operation.
C4 :
CHECK B+ AT VVT SOLENOID

W
ith EM014 disconnected, measure the resistance
between EM014/009 and ground EM016L
1
I
s the resistance < 0.5 OHM?
Yes Reconnect EM014, EM015, PI031 or (PI032)
GO to C10
No Inspect harness / connector EM014, ground stud and
splice EMS037 for corrosion, damage, bent or pushed
back pins and repair as required. Test the system for
normal operation.
C9
: CHECK MECHANICAL CONDITION
R

emove the VVT(s) and ensure
that there is no foreign
matter blocking the oil passageway
1
OK
?
Yes GO to C10
No Rectify as required
C
10: END
Perform

appropriate service drive cycle and check for the
presence of DTC.
1
Has
the fault code cleared?
Yes STOP
No Contact Jaguar Service

Engine - Crankshaft
Inner Sp
rocket4.0L NA V8 - AJ27
In-v
ehicle Repair
Remov

al
S
pecial Tool(s)

Camshaft setting
3

03 - 530

T

iming chain tensioning
303 - 532

Wedges, primary ch
ain
303 - 533

Cranksh
aft setting
303 - 531
1. Open the engine compartment and fit paintwork protection
sheets.
2. Set the engine compartment cover to the service access
position.

3. Di
sconnect the batt
ery ground cable.
R
emove the battery cover.
4. Remove the Timing Co ver. Refer to Operation 12.65.01 in this
Section.
5. Remove the VVT bush carrier from the A-Bank.
1. Remove the three bolts which secure the carrier to the cylinder block.

2.
Release the carrier from
the two ring dowels and
remove it.

6. Re
move the seals from the bush carrier.
1. Remove the sealing ring (scarf jointed) from the
carrier bush groove.
2. Remove the O-ring from the carrier oil-way recess.

7. Re
move the VVT bush carrier from the B-Bank.
1. Remove the two bolts and one nut which secure the carrier to the cylinder block.
2. Release the carrier from the two ring dowels and
remove it.

8. Re
move the seals from the bush carrier.
1. Remove the sealing ring (scarf jointed) from the
carrier bush groove.
2. Remove the O-ring from the carrier oil-way recess.
9. Raise the vehicle on a ramp.
10. Remove the crankshaft position sensor.
1. Remove the bolt which secures the crankshaft position sensor to the flywheel housing.
1. Re move
the sensor and allow it to hang free under
the engine.

18. L
oosen the bolt which secures
the VVT unit to the camshaft.

19 . Re
move the primary ch
ain tensioner bolts.

20 . R
emove the tensioner assembly.
1. Remove the tensioner.
2. Remove the tensioner back-plate.
21. Remove the chain tensioner blade.
1. Remove the pivot bolt which secures the tensioner blade.
2. Remove the tensioner blade.