2007 FORD FIESTA steering

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.
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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=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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204-00-4 Suspension System - General Information 204-00-4
DIAGNOSIS AND TESTING
Suspension System
I I Alignment Pins, Subframe I
lnspection and Verification
Mechanical
Wheel knuckles
Tie-rod ends
Front suspension lower arm ball joints
Front suspension lower arm bushings
Front strut and spring assemblies
Front stabilizer bar and connecting links
Rear springs
Rear shock absorbers
Rear suspension beam axle and bushings
1.
Verify the customer concern.
I
2. Visually inspect for obvious signs of mechanical
damage.
3. If an obvious cause for an observed or reported Visual Inspection Chart concern is found, correct the cause (if possible)
I I Wheels and tires
Mechanical
Tire pressure(s)
Symptom Chart
before proceeding to the next step.
4. If the cause is not visually evident, verify the
symptom and refer to the Symptom Chart.
Symptom Chart
Symptom
Drift left or right
Possible Sources Action
Steering System (Diagnosis
and Testing),
Steering System
- 1.6L
Duratorq-TDCi (DV) Diesel
(Diagnosis and Testing).
Vehicle attitude incorrect (front
or rear is high or low).
Steering gear or linkage worn
or damaged.
I Brake system. I CHECK the brake system. I
CHECK for abnormal loading,
spring sag or non-standard
springs.
CHECK the steering system.
REFER to: (21 1-00 Steering
System
- General Information)
REFER to: Brake System (206-
00 Brake System
- General
Information, Diagnosis and
REFER to: Specifications (204-
'!
00 Suspension System -
i
General Information,
Specifications).
Incorrect wheel alignment.
2006.0 Fiesta 1212006 GI 49885en
Testing).
ADJUST the wheel alignment. ,'-
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204-00-5 Suspension System - General Information 204-00-5 --
DIAGNOSIS AND TESTING
Symptom Possible
Sources -
l ncorrect front crossmem ber
alignment.
Action
Using the special tool, CHECK
the front crossmember align- ment.
Worn front wheel bearings. CHECK
the wheel bearings.
REFER to: Wheel Bearing
lnspection (204-00 Suspen-
sion System
- General
Information, General Proced-
ures).
I Wheels and tires. I . GO to Pinpoint Test A. I
Steering wheel off-center Vehicle attitude incorrect (front
or rear is high or low).
Tracks incorrectly CHECK for abnormal loading,
spring sag or non-standard
springs.
-
Steering gear or linkage worn
or damaged. CHECK the steering system.
REFER to: (21 1-00 Steering
System
- General Information)
Steering System (Diagnosis and Testing),
Steering System
- 1.6L
Duratorq-TDCi (DV) Diesel
(Diagnosis and Testing).
Suspension lower arm ball
joint. CARRY
OUT the Ball Joint
lnspection component test in
this procedure.
lncorrect wheel alignment. ADJUST
the wheel alignment.
REFER to: Specifications (204-
00 Suspension System
-
General Information,
Specifications).
lncorrect front suspension toe,
castor or camber angles. CHECK
the wheel alignment.
REFER to: Specifications (204-
00 Suspension System
-
General Information,
Specifications).
INSTALL new suspension
components as necessary.
~ncorrecGar suspension toe
or camber angles. CHECK
the wheel alignment.
REFER to: Specifications (204-
00 Suspension System
-
General Information,
Specifications).
INSTALL new suspension
components as necessary.
2006.0 Fiesta 1212006 Gl49885en
Front or rear suspension
damage. INSTALL new
suspension
components as necessary.
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204-00-7 Suspension System - General Information 204-00-7
DIAGNOSIS AND TESTING
Possible Sources Action
1. Worn front wheel bearings I GO to Pinpoint Test B. I
I Wheels and tires I GO to Pinpoint Test B. I
Front or rear suspension
damage. CHECK and INSTALL new
suspension components as
necessary.
lncorrect wheel alignment. ADJUST the wheel alignment.
REFER to: Specifications (204-
00 Suspension System
-
General Information,
Specifications).
Damaged or worn front wheel
bearings. CHECK
the front wheel bear-
ings.
REFER to: Wheel Bearing
Inspection (204-00 Suspen-
sion System
- General
Information, General Proced-
ures).
Wheels and tires. CHECK the tires. BALANCE or
INSTALL new tires as neces-
sary.
I Incorrect wheel alignment. I ADJUST the wheel alignment.
REFER to: Specifications (204-
00 Suspension System
-
General Information,
Specifications).
Steering gear or linkage worn
or damaged. CHECK the steering system.
REFER to: (2
11 -00 Steering
System
- General Information)
Steering System (Diagnosis
and Testing),
Steering System
- I .6L
Duratorq-TDCi (DV) Diesel
(Diagnosis and Testing).
Front strut and spring assem-
1 blies. CARRY OUT
the Strut or
Shock Absorber Testing
component test in this
procedure.
CHECK and INSTALL new
suspension components as
necessary.
REFER to: Front Strut and
Spring Assembly (204-01
Front Suspension, Disas-
sembly and Assembly).
2006.0 Fiesta 1212006 G149885en
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204-00-8 Suspension System - General Information 204-00-8
DIAGNOSIS AND TESTING
Symptom Possible
Sources Action
Pinpoint Tests
Damaged front suspension
lower
arm(s).
PINPOINT TEST A : DRIFT LEFT OR RIGHT
TEST CONDITIONS
DETAILSIRESU LTSIACTIONS
INSTALL a new lower arm(s).
REFER to: Lower Arm (204-01
Front Suspension, Removal
and installation).
I
A WARNING:To avoid personal injury due to the loss of vehicle control, the inspection should
be carried out by two people to maintain safe driving conditions. Adequate grip should
always be maintained oh the steering wheel. Failure to follow these instructions may result
in personal injury.
N0TE:The following conditions must be met when evaluating the vehicle.
N0TE:The tire swapping procedures are for bi-directional rotating tires only.
Al: SWAP THE FRONT WHEEL AND TIRE ASSEMBLIES
Raise and support the vehicle. REFER to: (1 00-
02 Jacking and Lifting)
Jacking (Description and Operation), Lifting (Description and Operation).
- Swap the front left-hand wheel and tire
assembly with the front right-hand wheel and
tire assembly.
- Road test the vehicle.
Does the vehicle drift?
+ Yes
GO to A2.
+ No
Vehicle condition corrected.
2006.0 Fiesta 12/2006 G149885en
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204-00-1 7 Suspension System - General Information 204-00-1 7
GENERAL PROCEDURES
Front Toe Adjustment(l4 11 7 0)
I
N0TE:Make sure that the vehicle is standing on a 4. Rotate the tie-rods an equal amount in either
level surface. a clockwise or a counterclockwise direction
1. Centralize the steering and lock it in position. to
adjust the toe setting.
For additional information, refer to:
Specifications
(204-00, Specifications).
2. Loosen the tie-rod end locknuts.
3. Remove the steering gear boot outer clamps.
5. Tighten the tie-rod end locknuts.
For additional information, refer to: Tie Rod
End (21
1-03 Steering Linkage, Removal and
Installation).
6. Install the steering gear boot outer clamps.
2006.0 Fiesta 1212006 GI 7387en
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