1998 JAGUAR X308 Ground

be 'hun
g up' within the engine because it is not up to operating
temperature.
Should the oil level subsequently be topped-up, the level could
become too high, causing oil burning.
Typically, 0.875L is hung up.
Refill the engine with the correct specification engine oil.
58. Refill the automatic transmission. Refer to Section 307-01A,
Operation 44.24. 02.
59. Refill and bleed the power stee ring system. Refer to Section
211-02 General Procedures.
60. Repressurise the air conditioni ng system. Refer to Operation
82.30.30 and note all Wa rnings and Cautions.

61
.
Fit the engine covers.

62
.
With assistance, reposition the engine compartment cover
(bonnet) and fit the si x bolts; reconnect the ground lead to the
original location on the left hand hinge.
Re
connect the gas struts.
R

emove the masking tape from the front edge.
63. Remove the paintwork protection sheets and close the engine
compartment cover.
64. Reconnect the battery ground cable and fit the battery cover.
Re
set the clock and the radio information.

Pinpoint test
A: P0116, P0125
Connector
loose or corroded
*
D
TC P0118 ECT circuit high input
Sensor short
Harness open circui

t
Harness short
Connector loose or corroded
*
*
*
*
GO to Pinpoint

Test C
*
D
TC P1474 Intercooler coolant pump relay malfunction
Intercooler pump relay
failure
Intercooler pump relay to ECM drive circuit
fault Intercooler pump relay coil ground circuit
fault Harness fault
Connector loose or corroded
Connector pins(s) bent or tracking between
connections ECM power supply fault
*
*
*
*
*
*
*
GO to Pinpoint

Test D
*
P
INPOINT TEST A : P0116, P0125
T
EST CONDITIONS
D
ETAILS/RESULTS/ACTIONS
A1

: RETRIEVE DTCS
•

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 A2
A2: ENGINE
COOLANT SYSTEM CHECK
•

NOTE: Do not use the instrument display, if th
e ECT has failed this will not operate correctly.
Chec
k engine temperature rise using a thermocouple or
similar device.
1
Engine
temperature increasing?
Yes GO to A3
No Check coolant level
Check coolant for contamination
Check/test thermostat

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

eeze
frame data been recorded?
Yes GO to C2
C2
: CHECK ECT SENSOR SHORT
I

gnition switch to position 0
1
D

isconnect PI004
Re

ar of top hose
2
Meas

ure the resistance between sensor pins 1 and 2.
3
Re

sistance < 100 OHM?
Yes Renew sensor and proceed to C5
No GO to C3
C3
: CHECK FOR SHORT TO GROUND

I
gnition switch to position 0
1
Re

move engine management fuse F2
2
Meas

ure the resistance between relay socket pin 3 and
the load side of fuse F2.
3
I
s the resistance < 0.5 OHM?
Yes GO to D5
No Inspect harness / connectors EM020 and EM041 (relay
socket) for corrosion, damage, bent or pushed back pins.
Repair as required and te st the system for normal
operation.
D5:
CHECK RELAY SOCKET
GROUND CONTINUITY

Ig
nition switch to position 0
1
Meas
ure re
sistance between relay socket pin 1 and
ground EM017.
2
I s
the resistance < 0.5 OHM?
Yes GO to D6
No Inspect harness / connec tors EM020, EM041 (relay
socket) and splice EMS11 for corrosion, damage, bent or
pushed back pins. Repair as required and test the system
for normal operation.
D6: CHECK
RELAY COIL SUPPLY VOLTAGE
• NO

TE: Renew relay.

Ignition switc
h to position II
1
Meas

ure voltage between relay socket between pin 2 and
ground EM017.
2
B+ ?
Yes

GO to D8
No GO to D7
D7: C
HECK ECM SUPPLY TO RELAY CONTINUITY

Engine Cooling - Cooling Fan Motor and Shroud
Re
moval and Installation
Remov

al
Installation


1.
Di
sconnect the batt
ery ground cable.
R
emove the battery cover.
2. Open the engine compartment and fit paintwork protection
sheets.

3. Disc
onnect the harness multip
lug from each cooling fan.
Cut an
d remove the ratchet st
rap which secures each fan
harness to the fan moto r lower support leg.
1. Disconnect the mult iplug from each fan.
Di
sconnect each harness
from the clip on the fan
mounting frame and repo sition the harness.

4. R
emove the two bolts which
secure the fan and motor
assembly to the radiator.
5. Carefully remove the fan and mo tor assembly from the vehicle.

6. Re
move the mounting grommets
and spacer tubes from the
assembly.
1. Installation is the reverse of the remova l procedure. Ensure
that the fan and motor assembly locate into the lower
mountings.
2. Connect the battery and fit the battery cover. Reset the clock
and the radio.

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.