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
2006.0 Fiesta 1212006 G421219en
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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).
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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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303-03B-14 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-14
DIAGNOSIS AND TESTING
4. Observe the cooling system pressure tester make sure the pressure test reading
is
gauge reading for approximately two minutes. repeatable
and within acceptable gauge reading
The pressure should not drop during this time. limits of
the coolant expansion tank cap.
( If the system holds Pressure, proceed to Step 5. If the pressure test gauge readings are not 7. If the system does not hold pressure, check
within the acceptable gauge reading limits,
it thoroughly for coolant leaks.
INSTALL a new coolant expansion tank cap.
5. Check the engine for coolant leaks. Drain the
cooling system, repair any coolant leaks found
and fill and bleed the cooling system as
Thermostat Test
necessaw.
REFER to: Cooling System Draining, Filling and
Bleeding (303-03 Engine Cooling
- 2.OL
Duratec-HE (M14), General Procedures).
.Recheck the system by repeating Steps 3 and
4 at least twice.
Radiator Leak Test, Removed From Vehicle
CAUTI0N:Radiator internal pressure must
not exceed
130 kpa (20 psi) or damage may
result.
Clean the radiator thoroughly before leak testing
it, to prevent contamination of the water in the test
tank. Leak test the radiator in clean water with 138
kpa (20 psi) air pressure. Check it thoroughly for
air leaks. INSTALL a new radiator if necessary.
REFER to: Radiator (303-03 Engine Cooling
- 2.OL
Duratec-HE (M14), Removal and Installation).
Coolant Expansion Tank Cap Pressure Test
A WARNING:When releasing the system
pressure, cover the expansion tank cap
with a thick cloth to prevent the possibility
of coolant scalding, Failure to follow this
instruction may result in personal injury.
1. Remove the coolant expansion tank cap.
2. Use water to clean the area of the rubber seal
and pressure relief valve. Install the pressure
tester and adapter and immerse the coolant
-
expansion tank cap in water.
N0TE:lf the plunger of the pump is depressed too
quickly, an erroneous pressure reading will result.
3. Slowly depress the plunger of the pressure test
pump until the pressure gauge reading stops
increasing, and note the highest pressure
reading obtained.
4. Release pressure by turning the pressure relief
screw counterclockwise. Tighten the pressure
relief screw and repeat step 3 at least twice to
I. Connect the WDS to the data link connector
(DLC).
2. Using the WDS datalogger function, SELECT
the following sensors (as applicable to the
application):
IAT
- intake air temperature (IAT) sensor
ECT
- engine coolant temperature (ECT) sensor
CHT
- cylinder head temperature (CHT) sensor
LOAD
- engine load
VSS
- vehicle speed sensor (VSS)
RPM
- engine speed
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 1'. .
) A 1 Thermostat opens I\
B Thermostat settles into a cyclic open and
I I closure pattern
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303-03B-17 Engine Cooling - 2.OL Duratec-HE (M14) 303=03B-17 --
GENERAL PROCEDURES
Cooling System Draining, Filling and Bleeding(24 122 0)
Draining
, Special Tool(s) Allow the coolant to drain into a suitable
Im AWARNING:~~~~ releasing the cooling
system pressure, cover the coolant
expansion tank cap with a thick cloth to
prevent the possibility of scalding. Failure
5. Install the radiator lower hose.
to follow this instruction may result in
personal injury.
6. Lower the vehicle.
Release the cooling system pressure by
slowly turning the coolant expansion tank
Filling and Bleeding
cap a quarter of a turn. 1. Fill the coolant expansion tank to the MAX
mark.
container.
24003
2. Remove the coolant expansion tank cap.
3. Raise and support the vehicle.
For additional information, refer to: Lifting
(1 00-02 Jacking and Lifting, Description
and Operation).
4. Using the special tool, disconnect the
radiator lower hose to drain the cooling
system.
Removerllnstaller, Cooling
Hose Clamp
303-397 (24-003)
2. N0TE:Do not allow the engine to reach
normal operating temperature.
Start the engine, run the engine briefly at
2500 revolutions per minute (RPM) for 10
seconds to prime the heater circuit.
3. Switch the engine off.
4. Fill the coolant expansion tank 15 mm over
the MAX mark.
5. Install the coolant expansion tank cap.
6. Start the engine, maintain the engine speed
at
2500 RPM for eight minutes or until the
engine reaches normal operating
temperature.
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303-03B-22 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-22
REMOVAL AND INSTALLATION
Item Description Item Description
I 1 coolant hose
Removal Details
2
2006.0 Fiesta 1212006 G426583en
1
3
Thermostat housing to coolant expansion
tank and heater core return coolant hose
See Removal Detail
Radiator lower to thermostat housing See
Removal Detail
Thermostat housing
5. To install, reverse the removal procedure.
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303-03B-23 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-23
REMOVAL AND INSTALLATION
Item 1 Thermostat housing to coolant expansion
tank and heater core return coolant hose
' . I. Using the special tool, disconnect the
thermostat housing to coolant expansion
tank and heater core return coolant hose.
Item 2 Radiator lower to thermostat housing
coolant hose
1. Using the special tool, disconnect the
radiator lower to thermostat housing coolant
hose.
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303-03B-25 Engine Cooling - 2.OL Duratec-HE (M14) 303-03B-25
REMOVAL AND INSTALLATION
7. Disconnect the radiator hose and the heater Discard the gasket.
hose from the coolant outlet connector. ,
Installation
8. Disconnect the coolant expansion tank hose
from the coolant outlet connector. 1. N0TE:lnstall a new coolant outlet connector
gasket.
9. Disconnect the thermostat housing coolant
hose from the coolant outlet connector. To
install, reverse the removal procedure.
10. Remove the coolant outlet connector.
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