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303-00-7 Engine System - General Information 303-00-7
DIAGNOSIS AND TESTING
Svm~tom Possible Sources Action
Coolant consumption Cooling system components.
Oil cooler.
CHECK the coooling system.
REFER to:
Engine
Cooling (303-03 Engine
Cooling - 1.3L Duratec-8V
(Rocam)/l.25L Duratec-1 6V
(Sigma)/l.4L Duratec-1 6V
(Sigma)ll .6L Duratec-1 6V
(Sigma), Diagnosis and
Testing),
Engine
Cooling (303-03 Engine
Cooling - 2.OL Duratec-HE
(M14), Diagnosis and
Testing),
Engine
Cooling (303-03 Engine
Cooling - 1.4L Duratorq-TDCi
(DV)
Diesel, Diagnosis and
Testing),
Engine
Cooling (303-03 Engine
Cooling - 1.6L Duratorq-TDCi
(DV)
Diesel, Diagnosis and
Testing).
INSTALL a new oil cooler.
Damaged gaskets or warped
mating faces. CHECK the cylinder head
gasket for damage. CHECK the
cylinder head for distortion. - -- - -
Cracks or fractures in engine
components surrounded by
coolant, such as cylinder liners
and cylinder head combustion
chamber.
- - - - - - - -
DETERMINE the damaged
engine
component(s) and
install new component(s) as
necessary.
Engine will not crank Battery or cables. CHECK the battery, bracket
and
cables.
REFER to: Battery (41 4-01
Battery, Mounting and
Cables, Diagnosis and
Testing).
Starter motor or cables. I CHECK the starting system.
REFER to: Starting System
(303-06 Starting System,
Diagnosis and Testing).
2006.0 Fiesta 1212006 GI 52554en
I Engine cranks but will not start Fuel tank is empty. CHECK the fuel level.
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303-00-1 4 Engine System - General Information 303-00-1 4
DIAGNOSIS AND TESTING
Symptom
Possible Sources
Action
Timing belt or timing chain
incorrectly tensioned.
CHECK the timing belt or
timing chain tension. INSTALL
a new timing belt or timing
chain as necessary. REFER to:
Timing Belt (303-01 Engine
-
I .25L Duratec-1 6V
(Sigma)/l.4L Duratec-1 6V
(Sigma)/l .6L Duratec-1 6V
(Sigma), In-vehicle Repair),
Timing Chain (303-01 Engine
- 1.3L Duratec-8V (Rocam),
In-vehicle Repair),
Timing Chain (303-01 Engine
- 2.OL Duratec-HE (M14), In-
vehicle Repair),
Timing Belt
(303-01 Engine -
1.4L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair),
Timing Belt (303-01 Engine
-
I .6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
Noisy running or engine noise
Engine components
- Pistons
- Piston rings
- Connecting rod big end,
main bearing or thrust
bearing journals
- Connecting rods bent or
damaged.
CHECK the engine compon-
ents for wear or damage. Make
sure all components are within
specification. INSTALL new
components as necessary.
Engine - Oil Leaks
NOTE: Before installing new gaskets or seals, make
sure that the fault is clearly established.
If the oil leak cannot be identified clearly by a visual
inspection, carry out an ultraviolet
(UV) test:
Ultraviolet (UV) Testing
1. Clean the engine and transmission with a
suitable cleaning fluid.
2. Pour the UV-test fluid in accordance with the
quantity specified by the manufacturer through
the oil filler neck into the engine and install the
oil filler cap.
A WARN1NG:Vehicles with manual transaxle,
shift the transaxle into Neutral. Failure to
follow this instruction may result in
personal injury.
3. Start the engine and let it run for about five
minutes. 4.
Switch off the engine.
N0TE:lf no leak can be found, road test the vehicle
under various loads and check the engine for leaks
again.
5. Check the engine for oil leaks using a suitable
UV lamp.
'
6. Rectify any leaks found and check the engine
for oil leaks.
Measure the compression pressure
N0TE:The powertrain control module (PCM)
receives an error message when the fuel pump
relay is removed or electrical components are
disconnected. This error message must be deleted
from the fault memory using WDS after completing
the compression test.
(' ,
'I N0TE:Valve clearance must be set correctly before
performing a compression test. Make sure the
engine is at the normal operating temperature.
2006.0 Fiesta 1212006 GI 52554en
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303-00-52 Engine System - General Information 303-00-52
GENERAL
PROCEDURES
Exhaust Manifold Cleaning and Inspection
I. Inspect the cylinder head joining flanges of
the exhaust manifold for evidence of exhaust
gas leaks.
2. Inspect the exhaust manifold for cracks,
damaged gasket surfaces, or other damage
that would make it unfit for further use.
2006.0 Fiesta 1212006 GI 7640en
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Engine - 1.25L Dura
303-01 A-23 Duratec-1
6V (Sigma)ll .(
:ec-I 6V (Sigma)llm4L
L
Duratec-1 6V (Sigma)
303-01 Am23
IN-VEHICLE REPAIR
Discard the gaskets.
Installation
3. Attach the wiring harness and the coolant
hose to the intake manifold.
4. N0TE:lnstall new injector O-ring seals.
1. N0TE:lnstall new intake manifold gaskets. N0TE:Coat the 0-rina seals with clean enaine oil.
Install the intake manifold. V "
Install the fuel supply manifold.
2. Attach the wiring harness to the intake
manifold. 5. Connect the fuel return line quick release
coupling. For additional information, refer to
Section
31 0-00 [Fuel System - General
Information].
2006.0 Fiesta 1212006 GI 83728en
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Engine - I .25L Duratec-1 6V (Sigma)llm4L
303-01 A-28 Duratec-1 6V (Sigma)llm6L Duratec-1 6V (Sigma) 303-01 A-28
IN-VEHICLE REPAIR
Valve Cover(21 141 0)
Materials 4. Remove the valve cover. (. ,
Name Specification
I Silicone grease IESE-MlC171-AA I
Removal
A WARNING:Do not smoke or carry lighted
tobacco or open flame of any type when
working on or near any fuel related
components. Highly flammable mixtures
are always present and may ignite. Failure
to follow these instructions may result
in
personal injury.
1. Disconnect the battery ground cable. For
additional information, refer to
Section
414-01 [Battery, Mounting and
Cables].
2. Remove the air cleaner. For additional
information, refer to Section
303-12 [Intake
Air Distribution and Filtering].
3. Disconnect the spark plug electrical
connectors and detach the wires from the
valve cover.
Installation
1. N0TE:Check the valve cover gasket for
damage and install a new valve cover gasket
if necessary.
N0TE:lnstall the stud bolts to positions 5 and 6.
Install the valve cover.
Tighten the bolts in the sequence shown in
three stages.
Stage 1: Tighten bolt 1 by 3 to 4 turns.
Stage 2: Tigthen bolts 1 through 13 to 3 Nm.
Stage 3: Tigthen bolts 1 through 13 to 9 Nm.
2m ACAUTION:~~~ a suitable blunt object to
avoid damage to the spark plug connector
gasket. Coat the inside of the spark plug
connector with silicone grease to depth of
5-10 mm.
- - --
2006.0 Fiesta 1212006 GI 83729en
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Engine - 1.25L Duratec-1 6V (Sigma)llI4L
303-0 1 A-47 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-01 A-47
IN-VEHICLE REPAIR
Exhaust Manifold(21 187 0)
i Special Tool(s1 2. Remove the air cleaner.
--
Adapter for 303-290A
303-290-01 (21 -1 40-01
)
Adapter for 303-290A
303-290-02 (21 -1 40-02)
21 14002
General Equipment
21 14003
I Exhaust wrap I
Adapter for 303-290A
303-290-03A (21
-1 40-03A)
Removal
For additional information, refer to: Air
Cleaner - 1.25L Duratec-1 6V (Sigma)llm4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V
(Sigma) (303-12 Intake Air Distribution and
Filtering, Removal and Installation).
3. Raise and support the vehicle.
For additional information, refer to: Lifting
(100-02 Jacking and Lifting, Description
and Operation).
4m ACAUTION:~~~~ bending of the exhaust
flexible pipe may cause damage resulting in
failure.
Support the exhaust flexible pipe with a
support wrap or
suitable splint.
5. Detach the exhaust flexible pipe from the
catalytic converter.
Discard the gasket and the nuts.
1. Disconnect the battery ground cable. - -
For additional information, refer to: Battery 6.
Detach the exhaust system insulators from
Disconnect
(414-01 Battery, Mounting and the
exhaust brackets and position it to one
Cables, General Procedures). side.
2006.0 Fiesta 12/2006 GI 83739en
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Engine - 1.25L Duratec-I 6V (Sigma)llm4L
303-01 A-50 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
303-01 A-50
IN-VEHICLE REPAIR
Discard the nuts. Stage 2: 55 Nm.
21. Raise and support the vehicle. 5. Tighten the exhaust manifold lower retaining
For additional information, refer to: Lifting bolts.
(1 00-02 Jacking and
Lifting, Description
and Operation).
22. Remove the exhaust manifold.
Discard the gasket.
Installation
1. N0TE:lnstall a new exhaust manifold gasket.
Attach the exhaust manifold to the cylinder
head.
2. Lower the vehicle.
3. N0TE:lnstall a new exhaust manifold gasket 6. Install the exhaust manifold upper heat
and new exhaust manifold retaining nuts.
shield.
N0TE:Do not fully tighten the nuts and bolt at this
stage.
Install the exhaust manifold.
4. Tighten the exhaust manifold upper retaining
nuts and bolt in the sequence shown in two
stages.
Stage 1 : 20 Nm.
2006.0 Fiesta 1212006 GI 83739en
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Page 528 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-52
Duratec-1 6V (Sigma)ll.GL Duratec-1 6V (Sigma)
303-0 1 A-52
IN-VEHICLE REPAIR
13. Connect the catalyst monitor sensor
17. Install the exhaust manifold lower heat
electrical connector.
shield left-hand retaining bolts.
I I 'b -
14. Connect the heated oxygen (HO2S) sensor
18. Install the engine support insulator
electrical connector. retaining bolt.
15. Raise and support the vehicle. 19. Attach the exhaust system insulators to the
For additional information, refer to: Lifting exhaust
brackets.
(1 00-02 Jacking and Lifting, Description
20. N0TE:lnstall a new exhaust manifold gasket
and Operation). and new nuts.
16. Position the exhaust manifold lower heat
Attach the exhaust flexible pipe to the
shield and install the right-hand retaining
catalytic converter.
bolt.
21. Remove the exhaust flexible pipe support
wrap or splint.
2006.0 Fiesta 1212006 GI 83739en
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