2007 FORD FIESTA section 4

Engine Cooling - 1.3L Duratec-8V
(Rocam)llI25L Duratec-1 6V (Sigma)llI4L
303-03A-I 5 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-0344-15
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Cooling fan motor. CHECK the operation of the
cooling fan motor. REFER to
WDS.
Engine. INSPECT
the engine, cylinder
head, cylinder block and
cylinder head gasket.
REFER to: Cylinder Head (303-
01 Engine - 1.25L Duratec-
16V (Sigma)/l.4L Duratec-
16V (Sigma)/l.GL Duratec-
16V (Sigma), In-vehicle
Repair).
, The engine does not reach
normal operating temperature. ECT sensor. CHECK the ECT sensor.
I REFER to WDS.
Temperature gauge. CHECK
the instrument cluster
engine temperature gauge.
REFER to: lnstrument Cluster
- Vehicles Built Up To:
1012005 (41 3-01 lnstrument
Cluster, Diagnosis and
Testing)
I lnstrument Cluster - Vehicles
Built From:
1012005 (41 3-01
lnstrument Cluster, Diagnosis
and Testing).
Thermostat. CARRY OUT the Thermostat
Test Component Test in this
section. INSTALL a new ther-
mostat as necessary.
REFER to: Thermostat
- I .3L
Duratec-8V
(Rocam) (303-03
Engine Cooling
- 1.3L
Duratec-8V (Rocam)ll.25L
Duratec-16V (Sigma)/l.4L
Duratec-1 6V (Sigma)ll .6L
Duratec-16V (Sigma),
Removal and Installation)
I Thermostat - 1.25L Duratec-
16V (Sigma)/l.4L Duratec-
16V (Sigma)ll .6L Duratec-
16V (Sigma) (303-03 Engine
Cooling
- 1.3L Duratec-8V
(Rocam)ll.25L Duratec-1 6V
(Sigma)ll.4L Duratec-1 6V
(Sigma)/l .6L Duratec-I 6V
(Sigma), Removal and
Installation).
2006.0 Fiesta 1212oo6 GI 46258en
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Engine Cooling - I .3L Duratec-8V
(Rocam)llm25L Duratec-1 6V (Sigma)ll.4L
303-03A-17 Duratec-1 6V (Sigma)/lm6L Duratec-1 6V (Sigma) 303-03A-17
DIAGNOSIS AND TESTING
RPM - engine speed
i DSRPM - desired engine speed
The IAT sensor output is useful if the engine being
tested is cold or after an over-night cold soak. The
ECT sensor or CHT sensor and the IAT sensor
should either indicate the same value or be within
1 to 2 degrees Celsius of each other.
The ECT sensor output is important to display as
it indicates the engine warm-up and opening
temperature for the thermostat. It will initially
indicate a slightly higher reading just before the
thermostat opens and then drops back before
settling to a near flat line output (see graphic
below).
Item Description
I A I Thermostat opens I
B Thermostat settles into a cyclic open and
I I closure pattern
A CAUTI0N:lf the ECT sensor output reaches
the
120°C default line under normal cooling
system pressure, internal damage may be
caused to the engine and a diagnostic
trouble code (DTC) will be set in the PCM.
The test should be stopped and the cause
located and corrected. If the cooling
system does not pressurize, the coolant
will boil at
100°C which may also damage
the engine. CARRY OUT the Coolant
Expansion Tank Cap Pressure Test
Component Test in this section.
If the WDS only allows the ECT sensor to be
displayed in volts, refer to the following table for
corresponding Celsius values:
Volts
OCelsius
The CHT sensor output is useful to examine the
cylinder head temperature rise during the warm-up
cycle and later during the normal light throttle cruise
test. This sensor output may vary between vehicles
with manual transmission and vehicles with
automatic transmission and should be used for
reference only.
Volts
0.78
0.60
0.46
0.35
0.27
The
LOAD display is used for reference as it is
necessary to maintain a stable load line during the
test. It is necessary to carry out the test under
normal light throttle cruise driving conditions and
average loads, typically
40% to 70% of the load
value.
OCelsius
80
90
100
11 0
120
The VSS output is used for reference but can help
to identify misfires and sensors which fail during
the warm-up cycle.
The RPM display indicates the engine speed and can be compared with the DSRPM.
The DSRPM is the desired or calculated idle speed
which the PCM commands the engine to reach. If
the thermostat opens too early (before the correct
opening temperature has been reached), the
engine will not reach this value.
When using the WDS in data logger mode, the
signals recorded should remain within the
DEFAULT values set by the WDS.
3m AWARNING:M~~~ sure that the WDS is
placed in the vehicle so that it does not
interfere with the safe operation of the
vehicle. Do not place the WDS in the
deployment path of any air bag. Failure to
follow these instructions may result in personal injury.
N0TE:The road test is best carried out with the
aid of another technician in the vehicle to enable
the vehicle to be driven safely while the sensor
outputs are monitored within datalogger. If there
is only one technician available, the WDS can be
set up (using the
recordlcapture mode camera
icon) before leaving the workshop to record a
16
km (1 0 mile) test.
2006.0 Fiesta 1212006 GI 46258en
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Engine Cooling - 1.3L Duratec-8V
(Rocam)ll.25L Duratec-1 6V (Sigma)ll.4L
303-03A-24 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-O3A-24
REMOVAL AND INSTALLATION
Thermostat - 1.25L Duratec-1 6V (Sigma)/l.4L Duratec-1 6V
(Sigma)/l .6L Duratec-1 6V (Sigma)(24 454 0)
Special Tool(s) 4. Disconnect the heater hose from the
I Removerllnstaller, Cooling I thermostat housing.
Hose Clamp
303-397 (24-003)
Removal
1. Drain the cooling system.
For additional information, refer to Cooling
System Draining, Filling and Bleeding in
this section.
5. Remove the thermostat housing.
2. Remove the generator. For additional
information, refer to Section
414-02
[Generator and Regulator].
3. Using the special tool, disconnect the
radiator lower hose from the thermostat
housing.
6. N0TE:The thermostat is installed with the
jiggle pin at the top.
Remove the thermostat.
I I, '
Installation
I. To install, reverse the removal procedure.
2006.0 Fiesta 1212006 G210040en
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Engine Cooling - 1.3L Duratec-8V
(Rocam)llI25L Duratec-1 6V (Sigma)llI4L
3-03A-26 Duratec-I 6V (Sigma)llm6L Duratec-1 6V (Sigma) 303-03A-26
REMOVAL AND INSTALLATION
Radiator(24 254 0) /'
Special Tool@)
I I Remover/lnstaller, Cooling I
2. Push the cooling fan motor and shroud (.
upwards and then downwards to remove.
24003
Removal
Hose Clamp
303-397 (24-003)
1. Disconnect the battery ground cable. For
additional information, refer to
Section 414-01 [Battery, Mounting and
Cables].
5. Using the special tool, disconnect the
2. Drain the cooling system. radiator
upper hose.
For additional information, refer to Cooling
System Draining, Filling and Bleeding in
this section.
3. Disconnect the cooling fan motor and
cooling fan resistor electrical connectors.
4. Remove the cooling fan motor and shroud.
I. Release the cooling fan motor and shroud
from the retaining brackets.
6. Using the special tool, disconnect the
radiator lower hose.
7. Remove the radiator retainers.
1. Remove the radiator retainer locking screws.
2006.0 Fiesta 1212006 ~210041 en
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303-03B-1 Engine Cooling -- 2.OL Duratec-HE (M14) 303-03B-1
SECTION 303-03B Engine Cooling . 2.OL Duratec-HE
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
SPECIFICATIONS
Specifications
........................................................................\
.............................................. 303-038-2
DESCRIPTION AND OPERATION
Engine Cooling
........................................................................\
...................................... 303-038-3
System Overview
........................................................................\
.................................. 303-038-3
........................................................................\
............................................... Components 303-038-4
........................................................................\
....................................................... Coolant 303-038-7
........................................................................\
....................................... Changing Coolant 303-038-7
Fail-safe Cooling
........................................................................\
........................................ 303-038-8
DIAGNOSIS AND TESTING
........................................................................\
........................................... , Engine Cooling 303-038-9 ........................................................................\
.......................... , Inspection and Verification 303-038-9
Symptom Chart ........................................................................\
........................................... 303-038-9
........................................................................\
........................................ Component Tests 303-038-1 3
GENERAL PROCEDURES
.............................................. Cooling System Draining. Filling and Bleeding (24 1 22 0) 303-038-1
7
Draining
........................................................................\
...................................................... 303-038-1 7
Filling and Bleeding
........................................................................\
.................................... 303-038-1 7
REMOVAL AND INSTALLATION
Coolant Pump
........................................................................\
....................... (24 404 0) 303-038-19
Thermostat Housing
........................................................................\
................................ 303-038-21
Coolant Outlet Connector
........................................................................\
........................... 303-038-24
........................................................................\
.................................. Radiator (24 254 0) 303-038-26
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303-03B-9 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-9
DIAGNOSIS AND TESTING
.Engine Cooling
' . Special Tool(s)
Pressure Tester, Cooling
System
303-396 (24-001 A)
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
( I or electrical damage. Visual
lns~ection Chart
I Mechanical I Electrical I
Coolant leak(s)
Coolant
level
Gasket(s) or seal(s)
Core plug(s)
Hose(s) or hose
joints
Coolant expansion
tank cap and seal
Coolant expansion
tank
Radiator
Coolant pump
Thermostat housing
Heater core
Accessory drive belt
Coolant outlet
connector
Fuse(s)
Relay(s)
Wiring harness
Electrical
connector(s)
Engine coolant
temperature (ECT) sensor
Cooling fan motor
Powertrain control
module (PCM)
3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step
4. If the cause is not visually evident, verify the
symptom and refer to the Symptom Chart.
Symptom Chart
Symptom Chart
Symptom
Loss of coolant Possible Sources
Action
Hose(s) or hose joint(s).
Radiator. INSPECT
the hoses and hose
joints. INSTALL a new
hose(s)
as necessary.
INSPECT the radiator for leaks.
CARRY OUT the Pressure Test
Component Test in this section.
INSTALL a new radiator as
necessary.
REFER to: Radiator (303-03
Engine Cooling
- 2.OL
Duratec-H E (M 14), Removal
and Installation).
2006.0 Fiesta 1212006 G426582en
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Engine Cooling - 2.OL Duratec-HE (M14)
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Coolant
pump.
Thermostat housing.
Coolant expansion tank cap or
seal(s).
- -
Coolant expansion tank.
Heater core.
Engine. INSPECT the
coolant pump
leaks. CARRY OUT the Pres-
sure Test Component Test in
this section. INSTALL a new
gasket as necessary.
REFER to: Coolant Pump (303-
03 Engine Cooling
- 2.OL
Duratec-HE (M14), Removal
and Installation).
INSPECT the thermostat
housing for leaks. CARRY OUT
the Pressure Test Component
Test in this section. INSTALL
a new thermostat housing and
thermostat housing gasket as
necessary.
REFER to: Thermostat Housing
(303-03 Engine Cooling
-
2.OL Duratec-HE (M14),
Removal and Installation).
CHECK the coolant expansion
tank cap for tightness and
damage. INSTALL a new
coolant expansion cap as
necessary.
INSPECT the coolant expan-
sion tank for damage. INSTALL
a new coolant expansion tank
as necessary.
CHECK the heater core for
leaks.
INSPECT the engine, cylinder
head, cylinder block and
cylinder head gasket.
REFER to: Cylinder Head (303-
01 Engine
- 1.3L Duratec-8V
(Rocam), In-vehicle Repair).
2006.0 Fiesta lu2006 G426582en
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303-03B-12 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-I 2
DIAGNOSIS AND TESTING
Symptom Possible
Sources Action
Coolant level or condition.
Radiator grille.
Coolant pump.
Thermostat. CHECK
the coolant level.
REFILL the cooling system as
necessary.
REFER to: Cooling System
Draining, Filling and Bleeding
(303-03 Engine Cooling
-
2.OL Duratec-HE (M14),
General Procedures).
CHECK the coolant condition
and concentration
REFER to: Specifications (303-
03 Engine Cooling
- 2.OL
Duratec-HE (M14), Specifica-
tions).
If the coolant is contaminated
or the concentration is below
specifications, drain and refill
with new coolant.
REFER to: Cooling System
Draining, Filling and Bleeding
(303-03 Engine Cooling
-
2.OL Duratec-HE (M14),
General Procedures).
INSPECT the radiator grille for
air restrictions or damage.
REPAIR or INSTALL new parts
as necessary.
CARRY OUT the Pressure Test
Component Test in this section.
INSPECT the coolant pump for
leaks. INSTALL a new coolant
pump or coolant pump gasket
as necessary.
REFER to: Coolant Pump (303-
03 Engine Cooling
- 2.OL
Duratec-HE (M14), Removal
and Installation).
CARRY OUT the Thermostat
Test Component Test in this
section. INSTALL a new ther-
mostat housing and thermostat
housing gasket as necessary.
2006.0 Fiesta 1212006 G426582en
REFER to: Thermostat Housing
(303-03 Engine Cooling
-
2.OL Duratec-HE (M14),
Removal and Installation). ,,
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