
303-03B-7 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-7
DESCRIPTION AND OPERATION
Oil Cooler
Item Description
I I I Oil cooler I
1 2 1 Oil filter adaptor I
1 3 1 Oil filter I
The oil cooler is an oil to water type and is a full
flow system.
The oil cooler and oil filter are fitted to an adaptor
which is mounted on the cylinder block.
The coolant supply for the oil cooler is through the
thermostat by-pass hose.
Coolant Recovery System
A pressurized coolant expansion tank system is
used which continuously separates the air from the
cooling system and replenishes the system through
the coolant expansion tank outlet hose.
A continuous vent from the engine and radiator to
I the coolant expansion tank prevents air locks from
forming in the cooling system.
No manual bleed points are provided on the
system. The coolant expansion tank serves
as the location
for:
Service fill.
Coolant expansion during warm-up.
Air separation during operation.
System pressurization by the coolant pressure
cap.
Coolant
A WARN1NG:Coolant contains monoethylene
glycol and other constituents which are
toxic if taken internally and can be
absorbed into the skin after prolonged
contact. Failure to follow this instruction
may result in personal injury.
Coolant concentration should be checked through
the neck of the expansion tank with a hydrometer.
The acceptable range of specific gravity (sg) of
correctly balanced fluids is between
1.06 and
1.07kg/l, which represents a coolant concentration
between 40% and 55%. If the concentration falls
below 40% there is insufficient low temperature
protection and the corrosion resistance will be
inadequate. In such cases the concentration must
be brought back to specification.
The coolant used is the orange-colored Motorcraft
Super Plus 2000. Motorcraft Super Plus 2000 is a
non silicated organic acid technology (OAT)
coolant, and must not be mixed with other coolant
types. For cooling system top up, only use coolant
which meets the correct specification and is
compatible with the existing coolant.
Changing Coolant
A WARN1NG:When releasing the cooling
system pressure, cover the coolant
expansion tank cap with a thick cloth to
prevent the possibility of coolant scalding.
Failure to follow this instruction may result
in personal injury.
A CAUTI0N:When draining the coolant or
changing any cooling system components,
it is imperative that no coolant comes into
contact with the camshaft drive belt or
accessory drive belt. If necessary the belt
should be removed. Contamination of the
belt may result in premature belt failure.
N0TE:Providing the coolant has not been
contaminated with other fluids or foreign matter,
the robust corrosion resistance properties of this
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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).
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303-03B-11 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-1 I
DIAGNOSIS AND TESTING
Symptom
The engine overheats (signs of
coolant boiling)
Possible Sources Action
Cooling system does not hold
pressure. INSPECT
the coolant expan-
sion tank for damage. INSTALL
a new coolant expansion tank
as necessary. INSPECT the coolant pump or
coolant pump gasket for
damage. 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).
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). -
Air in cooling system. BLEED the cooling system.
REFER to: Cooling System
Draining, Filling and Bleeding
(303-03 Engine Cooling
-
2.OL Duratec-HE (M14),
General Procedures).
Coolant expansion tank cap or
seal(s).
CHECK the coolant expansion
tank cap for tightness and damage. INSTALL a new
coolant expansion cap as
necessary.
Coolant expansion tank. INSPECT
the coolant expan-
sion tank for damage. INSTALL
a new coolant expansion tank
as necessary.
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Engine Cooling - 2.OL Duratec-HE (M14)
DIAGNOSIS AND TESTING
Symptom Possible Sources
Action
I Accessory drive belt. CHECK the condition of the
accessory drive belt.
REFER to: Accessory Drive
(303-05 Accessory Drive,
Diagnosis and Testing).
Cooling fan.
CHECK the operation of the
I cooling fan. REFER to WDS.
Engine. INSPECT the engine, cylinder
head, cylinder block and
cylinder head gasket.
REFER to: Cylinder Head
(303-
01 Engine - I .3L Duratec-8V
(Rocam), I n-vehicle Repair).
The engine does not reach
normal operating temperature. 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, Removal
and Installation).
Thermostat. CARRY OUT the Thermostat
Test Component Test in this
section. INSTALL a new ther-
mostat housing and thermostat
housing gasket as necessary.
REFER to: Thermostat Housing (303-03 Engine Cooling
-
2.OL Duratec-HE (M14),
Removal and Installation).
Component Tests
Pressure Test
A WARNING:When releasing the cooling
system pressure, cover the coolant
expansion tank cap with a thick cloth to
- prevent the possibility of coolant scalding.
Failure to follow this instruction may result
in personal injury.
N0TE:lf the coolant expansion tank cap is rotated
counterclockwise by 1 12 a full turn, the pressurized
coolant will be vented to the underside of the
coolant expansion tank cap.
1. Remove the coolant expansion tank cap.
2. Install the special tools 303-396 and 303-396-01
to the coolant expansion tank.
3. Pressurize the system to the coolant expansion
tank cap release pressure.
REFER to: Specifications (303-03 Engine
Cooling
- 2.OL Duratec-HE (M14),
Specifications).
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303-03B-15 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-15
DIAGNOSIS AND TESTING
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
1 OO°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:
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
1.33
1.02
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
60
70
80
90
100
110
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.
N0TE:The results from the test are more
conclusive if the engine is cold when the test is
started.
Carry out a road test.
REFER to:
RoadIRoller Testing (1 00-00 General
Information, Description and Operation).
4. Drive the vehicle at a constant throttle opening
and set speed until the ECT value settles into
a shallow rise and fall signal, close to a straight
line. This indicates that the thermostat is
functioning correctly.
N0TE:Some thermostats indicate the
temperature(s) in Celsius and Fahrenheit.
The graphic below shows the location and an
example of the opening temperature
(88OC) and
fully open temperature (1
02OC) of a thermostat.
The graphic below shows an alternative method used to show the opening temperature
(88OC) and
fully open temperature
(112OC) of a thermostat.
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Fuel Charging and Controls - 1.25L
Duratec-1 6V (Sigma)llI4L Duratec-1 6V
(Sigma)llI6L Duratec-1 6V (Sigma)
REMOVAL AND INSTALLATION
Fuel Charging Wiring Harness(36 437 0)
Removal
1. Remove the air cleaner. For additional
5. N0TE:lt is necessary to lift the red locking
tab before the electrical connector can be
disconnected.
information, refer to Section
303-12 [Intake the throttle body electrical Air Distribution and Filtering].
connector.
2. Disconnect the spark plug wires from the
ignition coil.
6. Disconnect the fuel charging wiring harness
electrical connector.
3. Disconnect the engine coolant temperature
(ECT) sensor electrical connector.
(
7. Remove the positive crankcase ventilation
(PCV) hose.
4. Disconnect the camshaft position (CMP)
sensor electrical connector.
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Fuel Charging and Controls - 2.OL
303-04B-9 Duratec-HE (M14) 303-04B-9
DIAGNOSIS AND TESTING
Symptom Chart
Symptom Chart
Symptom
Possible Sources Action
Engine does not crank
Engine cranks but does not
start PATS. CHECK
the PATS LED extin-
guishes within 3 seconds when
the ignition is turned on.
REFER to: Anti-Theft
- Passive
(41 9-01
8, Diagnosis and
Testing).
Starting system.
REFER to: Starting System
(303-06, Diagnosis and
Testing).
Ignition switch. REFER to the Wiring
Diagrams.
Powertrain control module
(PCM).
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Low fuel system pressure.
Inertia fuel shutoff (IFS) switch.
Check the fuel system pres-
sure.
REFER to: Fuel System Pres-
sure Check (31
0-OOA,
General Procedures).
RESET the IFS switch.
Fuel lines damaged or blocked.
INSPECT the fuel lines.
INSTALL new components as
necessary. TEST the system
for normal operation.
I Fuel filter blocked. I INSTALL a new fuel filter. I
Fuel pump module. REFER to: Fuel System - 1.3L
Duratec-8V (Rocam)/l.25L
Duratec-1 6V (Sigma)/2.OL
Duratec-HE (M14)/1.4L
Duratec-1 6V (Sigma)/l .6L
Duratec-1
6V (Sigma) (31 0-00
Fuel System
- General
Information, Diagnosis and
Testing).
Crankshaft position (CKP)
sensor. Carry out a
full engine
diagnosis using the guided
diagnostic menu in WDS.
Camshaft position (CMP)
sensor. Carry out a
full engine
diagnosis using the guided
diagnostic menu in WDS.
PCM. Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
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Fuel Charging and Controls - 2.OL
303-04B-21 Duratec-HE (M14) 303-04B-21
DIAGNOSIS AND TESTING
Symptom
Engine knock at idle
Possible Sources Action
Fuel injectors.
INSPECT the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
Fuel rail fuel pressure sensor.
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
Low cylinder compression.
CHECK the engine compres-
sion.
Worn or damaged
valve(s),
tappet(s) or camshaft(s).
REMOVE the cylinder head.
INSPECT the cylinder head,
valves, tappets and camshafts
for signs of wear or damage.
REFER to: Cylinder Head (303-
01 C, In-vehicle Repair).
Damaged cylinder head gasket. REMOVE the cylinder head.
INSPECT the cylinder head
gasket and cylinder bores for
wear or damage.
REFER to: Cylinder Head (303-
01 C, In-vehicle Repair).
Low engine oil level.
CHECK the engine oil level.
REFILL as necessary.
Incorrect or contaminated fuel.
-
KS. CHECK
for signs of contamina-
tion such as strange odors from
the fuel tank.
If contaminated fuel is found,
DRAIN the complete fuel
system. FLUSH the fuel system
through with clean gasoline.
REFER to: Fuel Tank Draining
(31
0-OOA, General Proced-
u res).
INSTALL a new fuel filter.
INSPECT the fuel injectors.
CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out. INSTALL a new fuel rail.
REFER to: Fuel Injection
Supply Manifold
(303-04C,
Removal and Installation).
Carry out a full engine
diagnosis using the guided
diagnostic menu in WDS.
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