
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
procarmanuals.com

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-0 I Am82 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma)
303-01 Am82
REMOVAL
Lifting Bracket, Engine
303-1 22 (21 -068A)
Engine - Vehicles With: Automatic Transaxle
Special Tool(s) present and may ignite. Failure to follow (.
2. Remove the air cleaner.
622
For additional information, refer to: Air
Cleaner - 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)/l .6L Duratec-1 6V
(Sigma) (303-12 Intake Air Distribution and
Filtering, Removal and Installation).
I I 1 3. Drain the cooling system.
Wrench, Hydraulic Line Union
"-269 (13-027)
I I Remover/lnstaller, Hose I
these instructions may result in personal
injury.
1. Release the fuel system pressure.
For
additional information, refer to: Fuel
System Pressure Release (31 0-00 Fuel
System - General Information, General
Procedures).
General Eaui~ment
I Engine hoist I
I Securing straps I
I Workshop table I
All vehicles
WARNINGS:
A Refer to the Material Safety Data Sheets
for the Automatic Transmission
Fluid
E-AW. Failure to follow this instruction may
result in personal injury. Certain
Transmission and Power Steering fluids
supplied to Ford contain additives which
may cause skin irritation or other skin
reactions after contact.
For
additional information, refer to: Health
and Safety Precautions (1 00-00 General
Information, Description and Operation).
See
- Transmission Fluids.
A Do not smoke or carry lighted tobacco or
open flame of any type when working on
or near any
fuel related components.
Highly flammable vapors are always
For additional information, refer to: Cooling
System Draining, Filling and Bleeding -
1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-1 6V
(Sigma)llm3L Duratec-8V (Rocam) (303-03A,
General Procedures). ,'
4. Remove the front wheels and tires. C'
For additional information, refer to: Wheel
and Tire (204-04 Wheels and Tires, Removal
and Installation).
5. Disconnect the powertrain control module
(PCM) electrical connector.
For
additional information, refer to:
Powertrain
Control Module (PCM) - 1.25L
Duratec-1 6V (Sigma)ll.4L Duratec-1 6V
(Sigma)ll .6L Duratec-1 6V (Sigma) (303-14
Electronic Engine Controls, Removal and
Installation).
6. Loosen the strut and spring assembly top
mount nuts by three turns on both sides.
--
2006.0 Fiesta 1212006 G380458en
procarmanuals.com

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

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
procarmanuals.com

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
procarmanuals.com

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
procarmanuals.com

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

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-1 40 Duratec-1 6V (Sigma)ll .6L
Duratec-1 6V (Sigma) 303-01 A-1 40
INSTALLATION
35. Tighten the engine rear mount center
retaining nut. 38. Connect the power steering pressure (PSP)
switch electrical connector.
,/'
36. Connect the transmission fluid cooler line 39. Attach the selector lever cable retaining
to the transaxle.
bracket to the transaxle.
37. Connect the vehicle speed (VSS) sensor
40. Attach the selector lever cable to the
electrical connector. transaxle.
41. Adjust the selector lever cable.
For additional information, refer to: Selector
Lever Cable Adjustment (307-05
Automatic
Transmission/Transaxle
External Controls - Vehicles With:
4-Speed Automatic Transmission
(AW81-40), General Procedures).
2006.0 Fiesta 1212006 G380459en
procarmanuals.com