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
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Page 565 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-89 Duratec-1 6V (Sigma)ll.GL Duratec-1 6V (Sigma) 303-01 A-89
REMOVAL
44m ACAUTION:~~~~ bending of the exhaust Vehicles with air conditioning
I flexible pipe may cause damage resulting 47.
Disconnect the air conditioning (NC)
, in failure. low-pressure cutoff switch electrical
Support the exhaust
flexible pipe with a connector.
suitable support
wrap or suitable splint.
48. Disconnect the NC compressor clutch
45. Detach the exhaust flexible pipe from the electrical connector.
catalytic converter.
Discard the nuts and the gasket.
46. Remove the accessory drive belt.
For additional information, refer to:
Accessory Drive
Belt - I .4L Duratec-I 6V
(Sigma)ll .6L Duratec-1 6V (Sigma),
Vehicles With: Air Conditioning (303-05
Accessory Drive, Removal and
Installation)
I Accessory Drive Belt - I .4L Duratec-I 6V
(Sigma)ll .6L Duratec-1 6V (Sigma),
Vehicles Without: Air Conditioning
(303-05 Accessory Drive,
Removal and
Installation).
49. Disconnect the NC high-pressure cutoff
switch
electrical connector.
2006.0 Fiesta 1212006 G380458en
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Page 566 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 Am90 Duratec-I 6V (Sigma)ll.GL Duratec-1 6V (Sigma) 303-01 A-90
REMOVAL
50. Detach the AIC compressor from the See - Transmission Fluids.
cylinder block and position it to one side.
All vehicles
53. Using the special tool, detach the power
steering line from the power steering pump.
51. Detach the power steering line support For
additional information, refer to: Health
bracket from the engine block. and
Safety Precautions (1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
Allow the fluid to drain into a suitable
container.
52. Disconnect the power steering line from
the steering pump.
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). For
additional information, refer to: Health
and Safety Precautions
(1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
2006.0 Fiesta 1212006 G380458en
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Page 567 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
REMOVAL
54. Disconnect the cooling fan motor and 57. Using the special tool, disconnect the
. cooling fan resistor electrical connectors. coolant
hose from the distribution pipe.
55. Remove the cooling fan motor and shroud. 58. Detach the lower arm from the wheel
1. Release the cooling fan motor and shroud knuckle on both sides.
from the retaining brackets. Remove
the heat shield.
2. Push the cooling fan motor and shroud
upwards and then downwards to remove.
Asupport the halfshaft. The inner joint 56. Using the special tool, disconnect the
must not be bent more than 18 degrees.
coolant hose from the radiator.
The outer joint must not be bent more than
'i
45 degrees.
59. CAUTIONS:
ADO not damage the halfshaft seal.
N0TE:Plug the transaxle to prevent fluid loss or
dirt ingress.
For additional information, refer to: Health and
Safety Precautions
(1 00-00 General Information,
Description and Operation).
See
- Transmission Fluids.
Using a suitable tire lever, detach the
left-hand halfshaft from the transaxle and
secure
it to one side.
2006.0 Fiesta 1212006 G380458en
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Page 568 of 1226

Engine - I .25L Duratec-1 6V (Sigma)llI4L
303-01 Am92 Duratec-1 6V (Sigma)lll6L Duratec-1 6V (Sigma) 303-01 Am92
REMOVAL
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.
Discard the snap ring.
60. CAUTIONS:
Asupport the halfshaft. The inner joint
must not be bent more than
18 degrees.
The outer joint must not be bent more than
45 degrees.
ADO not damage the halfshaft seal.
See - Transmission Fluids.
1 61. Remove the engine support insulator.
N0TE:Plug the transaxle to prevent fluid loss or
dirt ingress.
62m ACAUTION:D~ not support the engine
For additional information, refer to: Health and directly on the oil pan.
Safety Precautions (1 00-00 General Information, N0TE:Using suitable securing straps, secure the
Description and Operation).
enaine and the transaxle on a workshop table. - See - Transmission Fluids. Using suitable wooden blocks, support the
Detach the right-hand halfshaft and the
engine and transaxle assembly.
intermediate shaft from the transaxle and
secure
it to one side.
Discard the center bearing cap and locknuts.
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).
63. Remove the engine rear mount nut. ('- ;!
2006.0 Fiesta 1212006 G380458en
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Page 573 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
DISASSEMBLY
8. Install the engine to the mounting stand. 11. Remove the oil pressure switch.
9. Drain the engine oil. 12. Remove the generator.
Allow the oil to drain into a suitable container.
13. Remove the coolant pump pulley.
10. Using a suitable oil filter strap wrench,
remove the oil filter.
Discard the oil filter.
2006.0 Fiesta 1212006 GI 54224en
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Page 577 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)llI4L
Duratec-1 6V (Sigma)lI.GL Duratec-1 6V (Sigma) 303-01A-101
DISASSEMBLY
32. Remove the crankshaft timing belt pulley. 35. Disconnect the positive crankcase
ventilation (PCV) hose from the PCV cover.
33. Remove the timing belt rear cover.
34m ACAUTION: ~ee~ the camshaft bearing
caps and the camshafts in order for
installation.
36. Detach the oil level indicator and tube from
the intake manifold.
Detach the knock sensor (KS) electrical
connector from the oil level indicator tube.
Remove the camshafts. 37. Remove the intake manifold lower bolt.
Slacken each camshaft bearing cap retaining
bolt in the sequence shown by one turn until
the camshaft is released.
Remove the camshaft bearing caps.
Remove and discard the camshaft seals.
38.
CAUTIONS:
A~~ace the cylinder head on a suitable
soft surface.
A~emove the cylinder head bolts in the
sequence shown.
2006.0 Fiesta 1212006 G 1 54224en
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Page 594 of 1226

Engine - 1.25L Duratec-I 6V (Sigma)ll.4L
303-01 A-1 18 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-01 A-I 18
ASSEMBLY
Carefully turn the crankshaft against the
special tool.
55. Check the valve timing.
If necessary loosen the camshaft pulleys and
correct the camshaft alignment.
56. Remove the special tools.
57. Install the blanking plug.
58. Check the valve clearances, adjust if
necessary.
f:
For additional information, refer to: Valve (.
Clearance Adjustment (303-01 Engine -
1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V
(Sigma), General Procedures).
59. Using the
special tool, install the spark
plugs.
Apply grease to the spark plug threads.
60. 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 I : Tighten bolt 1 by 3 to 4 turns.
Stage
2: Tighten bolts I through 13 to 3 Nm.
Stage
3: Tighten bolts 1 through 13 to 9 Nm.
'Irn CAUTION: Use 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 a depth of 5-10 mm. C
2006.0 Fiesta 1212006 GI 54225en
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