Page 523 of 1226

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
procarmanuals.com
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
procarmanuals.com
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
procarmanuals.com
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
procarmanuals.com
Page 552 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-76 Duratec-1 6V (Sigma)lll6L Duratec-1 6V (Sigma) 303-01 A-76
REMOVAL
Support the exhaust flexible pipe with a
suitable support wrap or suitable splint. 43.
Detach the power steering line support
bracket from the engine block.
/' -
40. Detach the exhaust flexible pipe from the
44. Disconnect the power steering line from
catalytic converter. the steering pump.
Discard the nuts and the gasket.
Allow the fluid to drain into a suitable
container.
41. Remove the accessory drive belt.
For additional information, refer to: 45.
Using the special tool, detach the power
Accessory Drive Belt
- I .4L Duratec-16V steering line from the power steering pump.
(Sigma)ll.GL Duratec-1 6V (Sigma), Allow the fluid to drain into a suitable
Vehicles With: Air Conditioning (303-05 container.
Accessory Drive, Removal and
Installation).
42. Detach the
AIC compressor from the
cylinder block and position
it to one side.
2006.0 Fiesta 1212006 GII 31 63en
procarmanuals.com
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
procarmanuals.com
Page 603 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-I 27 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
303-01 A-I 27
INSTALLATION
Attach the exhaust flexible pipe to the
33. Attach the gearshift cables to the bracket
catalytic converter.
and turn the abutment sleeves
counterclockwise.
31. Remove the exhaust flexible pipe support.
Vehicles without automated gearshift
32m ACAUTION:H brake fluid is spilt on the
paintwork, the affected area must be
immediately washed down with cold water.
N0TE:Make sure the spring clip is correctly seated.
Connect the clutch slave cylinder supply
line.
Install the spring clip.
34. N0TE:Do not install the air cleaner at this
stage.
Adjust the gearshift cable.
For additional information, refer to: Gearshift Cable Adjustment (308-00 Manual
Transmission/Transaxle and Clutch
General Information, General Procedures).
35.
N0TE:Do not install the air cleaner at this
stage.
Bleed the hydraulic clutch system.
For additional information, refer to: Clutch
System Bleeding (308-00 Manual
Transmission/Transaxle and Clutch -
General Information, General Procedures).
Vehicles with automated gearshift
36. Connect the gearshift actuator electrical
connector (colored grey).
2006.0 Fiesta 1212006
procarmanuals.com
Page 614 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
303-01 A-1 38
INSTALLATION
21. Connect the power steering line to the 25. Connect the ignition switch to starter motor
steering pump.
solenoid and battery to starter motor
solenoid cables.
22. Attach the power steering line support
bracket to the engine block.
26. Connect the crankshaft position (CKP)
sensor electrical connector.
23. N0TE:lnstall new exhaust flange nuts and
a new exhaust flange gasket.
27. Connect the oil pressure switch electrical
Attach the exhaust flexible pipe to the connector.
catalytic converter.
24. Remove the exhaust flexible pipe support.
2006.0 Fiesta 1212006 G380459en
procarmanuals.com