2007 FORD FIESTA Air con

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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I 00-04-1 2 Noise, Vibration and Harshness I 00=04m12
DIAGNOSIS AND TESTING
Power Steering Hiss Noise
Test Condition
Listen for steering hiss noise with the vehicle
parked, transmission in neutral and all windows
-
closed in the following test conditions.
Power Steering Lock Stop Impact Knock 1. Turn the steering wheel to the left-hand and
Noise right-hand steering locks and listen for the
impact noise.
Test Condition
Listen for steering knock noise with the engine
speed at idle in the following test conditions (noise
also apparent with engine off).
Action
CHECK the installation and
potential damage of the floor seal.
Certain amount of noise level
acceptable, not a safety critical
item.
Certain amount of noise level
acceptable, not a safety critical
item.
Certain amount of noise level
acceptable, not a safety critical
item.
Symptom
N0TE:Engine speed at idle
turning the steering wheel slowly
lock to lock.
Power steering system hiss noise
- a high frequency, continuous
rush or swish noise like escaping
air from a balloon. Hiss occurs
while turning between the steering
lock stops, all steering angles.
Noise does not change with
engine rpm and is worse at high
operating temperatures.
N0TE:Engine speed at idle
holding the steering wheel against
a steering lock for three seconds.
Do not hold for more than five
seconds.
Power steering system hiss noise
- a continuous noise like escaping
air occurs while holding the
steering against a steering lock
stop.
Possible Sources
Floor seal.
Power steering gear valve design.
Power steering system hydraulic
design.
Power pump pressure
relief valve.
Power Steering Mechanical Knock Noise 1. Turn the steering wheel 90 degrees to the right,
(PAS off) hold and then quickly release.
2. Turn the steering wheel 90 degrees to the left, Test Condition hold and then quickly release.
Listen for steering knock noise with the engine off
in the following test conditions (no power assist).
2006.0 Fiesta 1212006 G37349en
Action
Certain amount of noise level
acceptable, not a safety critical
item.
Symptom
Power steering system knock
noise
- a heavy loud sound like a
knock on a door that occurs in
parking condition when hitting the
lock stop.
Possible Sources
Power steering gear mechanical
noise, metal to metal at end of
steering travel.
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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
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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
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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.
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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
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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
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205-04-3 Front Drive Halfshafts 205-04-3
DESCRIPTION AND OPERATION
Front Drive Halfshafts
Drives hafts
Conventional driveshafts are used on the front axle.
For servicing purposes it is important to note that
the inner tripod joints are pressed onto the shaft.
This has made it possible to reduce noise levels
when the vehicle is pulling away from standing.
The outer joint has not been approved for service
repairs, so in the event of a fault it is necessary to
replace the complete shaft and outer joint
assembly. The inner joints are dismantled with the
aid of a puller. The driveshaft needs to be removed
first.
In order to install a new boot on the outer joint, it
is first necessary to remove the driveshaft and then
disassemble the inner joint. A special service kit is
available in service for this purpose, consisting of
the inner and outer boot and the necessary small
parts.
The same amount of grease is used to pack the
inner and outer joints.
- The PAC nut used for securing the driveshaft to ' the wheel hub must not be reused.
Item Description
I 1 I Securing clip for bearings I
Heat shield (only for vehicles with a petrol
1 * 1 engine)
It should also be noted that vehicles with a petrol
engine have an additional heat shield on the bearing of the intermediate shaft of the right-hand
driveshaft. This is required to prevent the grease
in the bearing from overheating as a result of the
closeness to the catalytic converter.
2006.0 Fiesta 1212006 G202088en
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