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100-04-9 Noise, Vibration and Harshness 1 00-04-9
DIAGNOSIS AND TESTING
Step 3: According to each identified operating
condition (Column A, B,
C, D, E, F), check each
possible Steering System
NVH concern with the
detail symptom charts below.
Before conducting a vehicle test to identify a
NVH
concern carry out the following checks.
1. Check the tire pressures and adjust to
specification, as necessary.
2. Make sure the steering system fluid is correct,
the system is free of leaks and is operating
correctly.
3. Make sure the vehicle steering system
temperature is the same as described at the
customer interview.
4. All evaluations must take place in a relatively
quiet location.
5. The heating
- air conditioning (AIC) fan and
radio must be turned off during evaluations and
the windows closed.
Symptom Chart
Power Steering Moan Noise
Test Condition
Listen for steering moan noise with the vehicle
parked, transmission in neutral and all windows
closed in the following test conditions.
1. Engine speed at idle with no steering action.
2. Engine speed at idle with slow 90 degrees per
second turning of the steering wheel.
3. Engine speed at 1250 +I- 50 rpm with no
steering action.
4. Engine speed at 1250 +I- 50 rpm with slow 90
degrees per second turning of the steering
wheel.
2006.0 Fiesta 12/2006 G37349en
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Page 553 of 1226

Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
303-01 A-77 Duratec-1 6V (Sigma)ll .6L
Duratec-1 6V (Sigma) 303-01 A-77
REMOVAL
46. Disconnect the cooling fan motor and 49. Using the special tool, disconnect the
cooling fan resistor electrical connectors. coolant
hose from the distribution pipe
47. Remove the cooling fan motor and shroud. 50. Detach the lower arm from the wheel -
1. Release the cooling fan motor and shroud knuckle on both sides (right-hand side
from the retaining brackets. shown).
2. Push the coolingfan motor and shroud Remove the heat shield.
upwards and then downwards to remove.
I I 51. CAUTIONS:
48. Using the special tool, disconnect the Asupport the halfshaft. The inner joint
coolant hose from the radiator.
must not be bent more than
18 degrees.
The outer joint must not be bent more than
45 degrees.
ADO not damage the halfshaft oil seal.
N0TE:PIug the transaxle to prevent oil loss or dirt
ingress.
Using the special tool, detach the left-hand
halfshaft from the transaxle and secure it
to
one side.
Allow the oil to drain into a suitable container.
2006.0 Fiesta 1212006 GI 131 63en
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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 601 of 1226
Engine - 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)/lI6L Duratec-1 6V (Sigma)
INSTALLATION
17. Connect the AIC high-pressure cut-off
. switch electrical connector.
20. Using the special tool, attach the power
steering line to the power steering pump.
18. Install the cooling fan motor and shroud. 21. Connect the power steering line to the
1. Push the cooling fan motor and shroud steering pump.
upwards and then downwards to install.
2. Install the cooling fan motor and shroud to
the retaining brackets.
19. Connect the cooling fan motor and cooling
fan resistor electrical connectors.
22. Attach the power steering line support
bracket to the engine block.
2006.0 Fiesta 1212006 GII 31 64en
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Page 613 of 1226
Engine - 1.25L Duratec-I 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma)
303-01 A-1 37
INSTALLATION
Install the heat shield. 2. Install the cooling fan motor and shroud to
the retaining brackets.
16. Using the special tool, connect the coolant
hose to the distribution pipe.
19. Connect the cooling fan motor and cooling
fan resistor electrical connectors.
17. Using the special tool, connect the coolant
hose to the radiator.
20. Using the special tool, attach the power
steering line to the power steering pump.
18. Install the cooling fan motor and shroud.
1. Push the cooling fan motor and shroud
upwards and then downwards to install.
2006.0 Fiesta 1212006 G380459en
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Page 697 of 1226
303-01 B-75 Engine - 2.OL Duratec-HE (M14) 303-01 B-75
REMOVAL
8. Disconnect the cooling fan motor and 1. Disconnect the EVAP valve electrical
cooling fan resistor electrical connectors. connector. 1 2. Disconnect the low pressure line from the
EVAP valve.
3. Push the EVAP valve from the support
bracket.
9. Remove the cooling fan motor and shroud.
1. Release the cooling fan motor and shroud
from the retaining brackets.
2. Push the cooling fan motor and shroud 13. Disconnect the brake booster vacuum line upwards and then downwards to remove. from the intake manifold.
10. Lower the vehicle. 14. Remove the battery tray support bracket.
11. Using the special tool, disconnect the
coolant hose from the coolant outlet
connector.
12. Detach the evaporative emission (EVAP)
valve from EVAP valve support bracket.
2006.0 Fiesta 1212006 G451290en
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Page 741 of 1226
303-01 B-1/19 Engine - 2.OL Duratec-HE (M14) 303-01 B-119
INSTALLATION
50. Connect the brake booster vacuum line to
53. Tighten the strut and spring assembly top
the intake manifold. mount nuts.
/
51. Attach the evaporative emission (EVAP)
valve from EVAP valve support bracket.
I. Connect the EVAP valve electrical connector.
2. Connect the low pressure line to the EVAP
valve.
3. Push the EVAP valve onto the support
bracket.
52. Using the special tool, connect the coolant
hose to the coolant outlet connector. 54.
Install the right-hand
headlamp assembly.
For additional information, refer to:
Headlamp Assembly (41 7-01 Exterior
Lighting, Removal and Installation).
55. Attach the exhaust flexible pipe to the
exhaust manifold.
For additional information, refer to: Exhaust
Flexible Pipe
- 2.OL Duratec-HE (M14)
(309-00 Exhaust System, Removal and
Installation).
56. Install the cooling fan motor and shroud.
2006.0 Fiesta 1212006 ~451291 en
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Page 742 of 1226

303-01 8-1 20 Engine - 2.OL Duratec-HE (M14) 303-01 B-I 20
INSTALLATION
57. Connect the cooling fan motor and cooling
fan resistor electrical connectors.
58. Install the accessory drive belt.
For additional information, refer to:
Accessory Drive Belt
- 2.OL Duratec-HE
(M14) (303-05 Accessory Drive, Removal
and Installation).
59. Adjust the gearshift cables.
For additional information, refer to:
Gearshift Cable Adjustment (308-00
Manual
Transmission/Transaxle and
Clutch
- General Information, General
Procedures).
60. Bleed the hydraulic clutch system.
For additional information, refer to: Clutch
System Bleeding (308-00 Manual
Transmission/Transaxle and Clutch -
General Information, General Procedures).
61. Install the battery tray.
For additional information, refer to: Battery
Tray
- 2.OL Duratec-HE (M14) (414-01
Battery, Mounting and Cables, Removal
and Installation).
62. Install the air cleaner.
For additional information, refer to: Air
Cleaner
- 2.OL Duratec-HE (M14) (3031 2
Intake Air Distribution and Filtering,
Removal and Installation).
63. Fill and bleed the cooling system.
For additional information, refer to: Cooling
System Draining, Filling and Bleeding
(303-03 Engine Cooling - 2.OL Duratec-HE
(M14), General Procedures).
2006.0 Fiesta 1212006 G451291 en
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