Page 526 of 1226
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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Page 530 of 1226

Engine - I .25L Duratec-1 6V (Sigma)llI4L
303-01 A-54 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma)
303-01 A-54
IN-VEHICLE REPAIR
Cylinder Head(21 163 0)
1 I Socket, Cylinder Head Bolts I
Discard the gasket and the nuts. (
Removerllnstaller, Hose
Clamp
303-397 (24-003)
I 24003 1 1 5. Raise and support the vehicle.
Removal
I I 1 For additional information, refer to: Lifting
(100-02 Jacking and Lifting, Description
1. Release the fuel system pressure.
Materials
For
additional information, refer to: Fuel
System Pressure Release (31 0-00 Fuel
System - General Information, General
Procedures). and
Operation).
2. Drain the
cooling system.
For
additional information, refer to: Cooling
System Draining, Filling and Bleeding
(303-03 Engine Cooling - 1.4L
Duratorq-TDCi (DV) Diesel, General 7. Remove the exhaust manifold lower heat
Procedures). shield left-hand retaining bolts.
3. Remove the camshaft.
Name
Specification
6. Using a suitable splint or wrap support the
For
additional information, refer to:
Camshafts
(303-01 Engine - 1.25L
Duratec-1 6V (Sigma)ll.4L Duratec-1 6V
(Sigma)ll.GL Duratec-1 6V (Sigma),
In-vehicle Repair).
Engine oil I WSS-M2C912-A1
4. Detach the exhaust flexible pipe from the
catalytic converter. exhaust
flexible pipe.
8. Remove the exhaust manifold lower heat
shield right-hand retaining bolts.
2006.0 Fiesta 1212006 GI 83740en
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Page 539 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-63 Duratec-1 6V (Sigma)/l.6L Duratec-1 6V (Sigma) 303-01 A-63
IN-VEHICLE REPAIR
23. Connect the brake booster vacuum line to 27. Install the
exhaust manifold lower heat
the intake manifold. shield
left-hand retaining bolts.
24. Raise and support the vehicle. 28.
N0TE:lnstall a
new flexible pipe gasket and
For
additional information, refer to: Lifting new
nuts.
(1 00-02 Jacking and Lifting, Description Attach the flexible pipe to the catalytic
and Operation). converter
25.
Install the intake manifold retaining bolt.
29. Remove the exhaust flexible pipe support.
26. Position the exhaust
manifold lower heat . 30, Install the camshaft.
shield and install the right-hand retaining
For additional information, refer to:
bolts. Camshafts (303-01 Engine
- 1.25L
Duratec-1 6V (Sigma)ll.4L Duratec-1 6V
(Sigma)ll.GL Duratec-1 6V (Sigma),
In-vehicle Repair).
31.
N0TE:lnstall a new oil filter.
Change the engine oil.
32. Fill and bleed the cooling system.
For
additional information, refer to: Cooling
System Draining, Filling and Bleeding
(303-03 Engine Cooling - 1.4L
Duratorq-TDCi (DV) Diesel, General
Procedures).
2006.0 Fiesta 1212006 GI 83740en
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Page 540 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)lla4L
303-01 A-64 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-01 A-64
IN-VEHICLE REPAIR
Oil Pan(21 154 0)
Special Tool(s)
Adapter for 205-047
303-633 (2
1 -227)
1501 1
General Equipment
Slide Hammer
205-047 (1 5-0 1 1 )
I Five M8 x 20 mm studs I
Materials
Name
S~ecification
3m CAUTION:^^ order to prevent damage to
the sealing surfaces, only use the designated
special tool to remove the oil pan. Do not
use a chisel or a screwdriver for removal.
N0TE:Tighten the lock nut against the oil pan and
use several taps to release the oil pan from the
cylinder block.
Using the special tool, remove the oil pan.
Installation
1. CAUTIONS:
n~he oil pump gasket projects over the
cylinder block sealing surface and must not
Removal be damaged.
I. Raise and support the vehicle. For additional ADO not damage the rubber sealing surface
information, refer to Section 100-02 [Jacking of
the crankshaft rear oil seal carrier.
and Lifting].
I Using Loctite 7070, clean the engine cylinder
2. Drain the engine and remove the oil pan block and
oil pan mating faces.
retaining bolts.
1. Remove the oil drain plug. 2m ~CAUTION:T~~ crankcase may be
damaged
if sealant enters the blind holes. 2. Remove the oil pan retaining bolts.
I I Install five M8 x 20 mm studs into the blind
holes where shown.
2006.0 Fiesta 1212006 GI 83741 en
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Page 550 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll.GL Duratec-1 6V (Sigma)
REMOVAL
26. Remove the engine wiring harness support
29. Detach the power steering line support
bracket. bracket from the cylinder head.
f
27. Disconnect the engine coolant temperature
30. Detach the power steering line from the
(ECT) electrical connector.
power steering pump mounting bracket.
28. Disconnect the electronic ignition (El) coil
31. Disconnect the engine ground cable.
electrical connector.
32. Raise and support the vehicle.
For additional information, refer to: Lifting
(100-02 Jacking and Lifting, Description
and Operation).
2006.0 Fiesta 1212006 GII 31 63en
procarmanuals.com
Page 564 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)llI4L
303-01 Am88 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303101 A-88
REMOVAL
38. Disconnect the vehicle speed (VSS) sensor
40. Disconnect the oil pressure switch
electrical connector. electrical connector.
/
39. N0TE:Mark the position of the transmission
fluid cooler supply line and the
transmission fluid cooler return line.
Disconnect the transmission fluid cooler
lines from the transaxle.
For additional information, refer to: Health
and Safety Precautions
(1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
Allow the fluid to drain into a suitable
container.
For additional information, refer to: Health and Safety Precautions
(1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
41. Raise and support the vehicle.
For additional information, refer to: Lifting
(1 00-02 Jacking and Lifting, Description
and Operation).
42. Disconnect the crankshaft position (CKP)
sensor electrical connector.
43. Disconnect the ignition switch to starter
motor solenoid and battery to starter motor
solenoid cables.
2006.0 Fiesta la2006 G380458en
procarmanuals.com
Page 599 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01A-123 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-01 A-I 23
INSTALLATION
5. Install the starter motor and the transaxle Install the engine rear mount.
left-hand retaining bolt.
/'
10. lnstall the battery tray support bracket.
6. Raise and support the vehicle.
For additional information, refer to: Lifting
(1 00-02 Jacking and Lifting, Description
and Operation).
7. Position the engine and transaxle assembly
in the engine compartment.
Carefully lower the vehicle.
8.
N0TE:lnstall new engine front mount
, retaining nuts. ' I ' N0TE:Do not tighten the engine front mount
retaining bolts and nuts at this stage.
Install the engine front mount. 11. Install the engine rear support insulator.
9.
N0TE:lnstall new engine rear mount 12. CAUTIONS:
retaining nuts.
Asupport the halfshaft. The inner joint N0TE:Do not tighten the engine rear mount center must not be bent more than 18 degrees. retaining nut at this stage. The outer joint must not be bent more than
45 degrees.
ADO not damage the halfshaft oil seal.
N0TE:lnstall a new center bearing cap and
locknuts.
2006.0 Fiesta 1212006 GII 31 64en
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