FORD FIESTA 2007 Manual PDF

100-04-15 Noise, Vibration and Harshness 100-04-15
DIAGNOSIS AND TESTING
Power Steering Grinding Noise 1. Slowly turn the steering wheel from lock to lock.
Test Condition
Action
Certain amount of noise level
acceptable, not a safety critical
item.
Symptom
Power steering system toc-toc
noise - a metallic noise created
when changing direction of
steering wheel rotation during
parking manoeuvre or at stand-
still.
2. Tilt and extend the steering column in various
positions and slowly turn the steering wheel
Possible Sources
gear (design tolerance
in steering rack).
Listen for steering grinding noise with the engine from lock to lock.
speed at idle and the vehicle parked, automatic
transmission in "P" (PARK) or manual transmission
in neutral and the windows closed.
Power Steering Zip Noise
Symptom Possible Sources Action
Power steering system grinding
noise
- an abrasive noise (like
sand paper rubbing against wood)
occurs between moving compon-
ents such as steering wheel and
the steering column shroud.
2006.0 Fiesta 1212006 G37349en
Steering wheel to shroud interfer-
ence.
Steering column bearing.
Foreign material in contact with
the steering column
shaft.
Clockspring.
Action
Certain amount of noise level
acceptable, not a safety critical item.
BLEED the power steering
system.
REFER
to: Power Steering
System Bleeding
(21 1-00
Steering System
- General
Information, General Proced-
ures).
Symptom
Power steering system zip noise
- occurs when hydraulic fluid
does not flow freely through the
power steering pump supply hose
from steering fluid reservoir to
power steering
pump causing
cavitation
at the pump. Zip is
primarily a cold weather start-up
phenomenon (below -1 0°C). Certain amount
of noise level
acceptable, not a safety critical
item.
Certain amount of noise level
acceptable, not a safety critical
item.
CHECK if floor covering is
obstructing the steering gear
pinion.
CHECK the installation of the floor
seal.
CHECK the clockspring and
secure if necessary.
REFER to: Clockspring (501
-208,
Removal and Installation).
Possible Sources
steering
Aeration of the power steering
fluid.
procarmanuals.com

100-04-16 Noise, Vibration and Harshness 100-04-1 6
DIAGNOSIS AND TESTING
Driveline Noise and Vibration
Suspension Noise and Vibration
Action
GO to Pinpoint Test A.
GO to Pinpoint Test
B.
GO to Pinpoint Test C.
Symptom
Shake and vibration while driving
Tip-in moan
Idle boomlshake/vibration/
shudder
Pinpoint Tests steps necessary to correct the condition. Then
check the operation of the system to make sure
N0TE:These Pinpoint Tests are designed to take the
condition has been corrected.
the technician through
a step-by-step diagnosis ~fi~~ verifying that the condition has been procedure to determine the cause of a condition. corrected, make sure all components removed It may not always be necessary to follow the chart have been installed. to its conclusion. Carry out only the pinpoint test
PINPOINT TEST A : SHAKE AND VIBRATION WHILE DRIVING
TEST CONDITIONS
DETAILSIRESU LTSIACTIONS 1
Possible Sources
Wheel end vibration.
. Engine/transmissiOnm
Air cleaner.
Power assisted steering.
Powertrain.
Powertrainldrivetrain mounts.
Exhaust system.
Cable(s)lhose(s).
Powertrainldrivetrain mounts.
Exhaust system.
Belt/ pulleys.
I A1 : NEUTRAL COAST I
Action
GO to Pinpoint Test D.
GO to Pinpoint Test E,
Symptom
Wheel end vibration analysis
Nan-axle noise
Carry out the neutral coast test.
Does the vibration disappear during the neutral
coast test?
+ Yes
GO to A2.
+ No
GO to Pinpoint Test D.
Possible Sources
Suspension.
. Wheel bearings,
Trim panels.
Air conditioning (A/C) system.
Accessories.
- --
2006.0 Fiesta 1212006 G37349en
procarmanuals.com

100-04-1 7 Noise, Vibration and Harshness 100-04-17
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESULTSIACTIONS
A2: CHECK THE POWERTRAINIDRIVETRAIN MOUNTS
Carry out the
powertrainldrivetrain mount neut-
ralizing procedure
Are the mounts OK?
-+ Yes
Vehicle condition corrected. ROAD TEST as
necessary.
+ No
INSTALL new
powertrainldrivetrain mounts
as necessary. ROAD TEST as necessary.
PINPOINT TEST B
: TIP-IN MOAN
TEST CONDITIONS
DETAILSIRESU LTSIACTIONS
B1: CHECK THE AIR CLEANER
Check the condition of the air cleaner mounts,
inlet tube, outlet tube, resonators and all other
components associated with the air induction
system for correct installation and tightness of
all connections.
Are the components OK?
+ Yes
GO to
B2.
-+ No
REPAIR or INSTALL new components as
necessary. ROAD TEST as necessary.
82: CHECK THE EXHAUST SYSTEM
Carry out the exhaust system neutralizing
procedure.
REFER to: Exhaust System Neutralizing
(1 00-
04, General Procedures).
Is the exhaust system
OK?
-+ Yes GO to
B3.
+ No
REPAIR as necessary. ROAD TEST as
necessary.
- -
2006.0 Fiesta 1212006 + G37349en
procarmanuals.com

100=04=18 Noise, Vibration and Harshness 100-04-18
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESU LTSIACTIONS
--
2006.0 Fiesta 1212006 G37349en
B3: CHECK THE POWER STEERING
B4: CHECK THE POWERTRAINIDRIVETRAIN
rn Remove the accessory drive belt and test for
tip-in moan. REFER to: (303-05 Accessory
Drive)
Accessory Drive Belt
- 1.8L Duratec-HE
(M14)/1.8L Duratec-SCi (M14)/2.OL Duratec-HE
(M14) (Removal and Installation),
Accessory Drive Belt
- 3.OL Duratec-SE
(VE6)/2.5L Duratec-VE (VE6)/3.OL Duratec-ST
(VE6) (Removal and Installation),
Accessory Drive Belt
- 2.OL Duratorq-DilTDDi
(Puma) Diesell2.0L Duratorq-TDCi (Puma)
Diesel12.2L Duratorq-TDCi (Puma) Diesel
(Removal and lnstallation).
Is the tip-in moan OK?
-+ Yes
REPAIR the power steering as necessary.
REFER to: Steering System (21 1-00 Steering
System
- General Information, Diagnosis
and Testing).
-+ No
GO to B4.
MOUNTS
rn Carry out the powertrainldrivetrain mount neut-
ralizing procedure
Are the
powertrainldrivetrain mounts OK?
-+ Yes
Vehicle condition corrected. ROAD TEST as
necessary.
-+ No
l NSTALL new powertrainldrivetrain mounts
as necessary. ROAD TEST as necessary.
procarmanuals.com

I 00-04-1 9 Noise, Vibration and Harshness 100-04-19
DIAGNOSIS AND TESTING
PINPOINT TEST C : IDLE BOOMISHAKENIBRATIONISHUDDER
1 TEST CONDITIONS DETAILSIRESU LTSIACTIONS
C1: CHECK THE CABLEIHOSES
rn Check the engine compartment for any
component that may have a touch condition
between the engine and body or chassis. For
example: control cable, air conditioning
(AIC)
hoses, acceleration cable.
Are the components OK?
-+ Yes
GO to C2.
+ No
REPAIR or INSTALL new components as
necessary. ROAD TEST as necessary.
C2: CHECK THE ENGINE COOLING RADIATOR
rn Check the engine cooling radiator mountings
and bushings for security and condition. Check
the radiator installation for any component that
may have a touch condition.
Is the installation and bushings OK?
+ Yes
GO to C3.
-+ No
REPAIR or INSTALL new components as
necessary. ROAD TEST as necessary.
C3: CHECK THE EXHAUST SYSTEM
rn Carry out the exhaust system neutralizing
procedure.
REFER to: Exhaust System Neutralizing
(1 00-
04, General Procedures).
Is the exhaust system OK?
+ Yes
GO to C4.
+ No
REPAIR as necessary. ROAD TEST as
necessary.
2006.0 Fiesta 1212006 G37349en
procarmanuals.com

100-04-20 Noise, Vibration and Harshness 100-04-20
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESULTSIACTIONS
C4: CHECK THE POWERTRAINIDRIVETRAIN MOUNTS
Carry out the powertrainldrivetrain mount neut-
ralizing procedure
Are the powertrainldrivetrain mounts OK?
+ Yes
Vehicle condition corrected. ROAD TEST as
necessary.
+ No
INSTALL new powertrainldrivetrain mounts
as necessary. ROAD TEST as necessary.
PINPOINT TEST D
: WHEEL END VIBRATION ANALYSIS
TEST CONDITIONS
DETAILSIRESU LTSIACTIONS
Dl: INSPECT THE WHEELS AND TIRES
Inspect the wheels and tires.
REFER to: Wheels and Tires (204-04 Wheels
and Tires, Diagnosis and Testing).
Are the wheels and tires OK?
+ Yes
GO to D2.
+ No
INSTALL new wheels or tires as necessary.
REFER to: Wheel and Tire (204-04 Wheels
and Tires, Removal and Installation).
ROAD TEST as necessary.
2006.0 Fiesta 1212006 G37349en
procarmanuals.com

100-04-21 Noise, Vibration and Harshness 100-04-21
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESULTSIACTIONS
I D2: INSPECT THE WHEEL BEARINGS
lnspect the wheel bearings.
REFER to: Wheel Bearing Inspection (204-00
Suspension System
- General Information,
General Procedures).
Are the wheel bearings OK?
+ Yes
GO to D3.
+ No
INSTALL new wheel bearings as necessary.
REFER to:
Wheel Bearing (204-01 Front Suspension,
Removal and lnstallation),
Wheel Bearing
- 2.OL Duratorq-DiITDDi (Puma)
Diesel12.0L Duratorq-TDCi (Puma) Diesel,
Vehicles With: 5-Speed Automatic Transaxle
(5F31 J) (204-01 Front Suspension, Removal
and lnstallation),
Wheel Hub (204-02 Rear Suspension, Removal
and lnstallation). ROAD TEST as necessary.
I D3: INSPECT THE WHEEL AND TIRE RUNOUT I
lnspect the wheel and tire runout.
Is the wheel and tire runout OK?
+ Yes
Balance the wheels and tires. Refer to the
wheel balance equipment manufacturer's
instructions. ROAD TEST as necessary.
+ No
INSTALL new wheels or tires as necessary.
REFER to: Wheel and Tire (204-04 Wheels
and Tires, Removal and Installation).
ROAD TEST as necessary.
2006.0 Fiesta 1212006 G37349en
procarmanuals.com

100-04-22 Noise, Vibration and Harshness I 00-04-22
DIAGNOSIS AND TESTING
PINPOINT TEST E : NON-AXLE NOISE
TEST CONDITIONS
DETAILSIRESULTSIACTIONS
I El : INSPECT THE VEHICLE TRIM I
Check the radiator grille and trim panels to see
if they are the source of the noise.
Are the vehicle trim components causing the
noise?
+ Yes INSTALL new trim components or REPAIR
as necessary. ROAD TEST as necessary.
I E2: CHECK THE AIR CONDITIONING (AIC) SYSTEM FOR NOISE I
I Ignition switch in position Ill. I
I lgnition switch in position II.
Check the NC system components for noise by
turning the
NC system on and off.
Is the
NC system causing the noise?
+ Yes
INSPECT the
NC system. REFER to: (412-
00 Climate Control System - General Informa-
tion)
Climate Control System (Diagnosis and Testing),
Climate Control System (Diagnosis and Testing).
ROAD TEST as necessary.
I E3: CHECK NO~FACTORY FITTED ACCESSORIES I
rn Check any non-factory installed accessories for
being the source of the noise. For example:
touch condition body-to-frame, antennas, deflectors and fog lights.
Are the accessories the cause of the noise?
+ Yes
ADJUST, REPAIR, or INSTALL new
accessories or fasteners as required. ROAD
TEST as necessary.
+ No
VERIFY the customer concern.
2006.0 Fiesta iuzoos G37349en
procarmanuals.com

100-04-23 Noise, Vibration and Harshness 100-04-23
GENERAL PROCEDURES
PowertrainIDrivetrain Mount Neutralizing(l4 001 0)
N0TE:There is no procedure for neutralizing the
powertrainldrivetrain mounts. To check the
alignment of the powertrain mounts visually,
proceed as follows.
I. Loosen the rear support insulator retaining
bolts (if equipped).
2. Loosen the powertrainldrivetrain mount
retaining bolts.
3. N0TE:Support the powertrainldrivetrain in
an approximate position and height.
N0TE:Make sure that the right-hand mount and
left-hand insulator align over the studs on the
powertrain and drivetrain to allow the fixings to be
assembled through the large holes in the support
insulator bracket without overstraining.
Check the powertrainldrivetrain mount
alignment.
4. Tighten the powertrainldrivetrain mount to
powertrainldrivetrain mount bracket retaining
bolts.
5. Tighten the powertrainldrivetrain mount to
body retaining bolts.
6. Tighten the rear support insulator retaining
bolts (if equipped).
2006.0 Fiesta 1212006 GI 7382en 1
procarmanuals.com

procarmanuals.com