2007 FORD FIESTA lock

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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100-04-13 Noise, Vibration and Harshness 100-04-13
DIAGNOSIS AND TESTING
Power Steering Mechanical Knock Noise 1. Turn the steering wheel to a steering lock and
(PAS on) return to center quickly.
2. Turn the steering wheel 90 degrees to the left
Test Condition and then 90 degrees to the right quickly.
Listen for steering knock noise with the engine
speed at idle in the following test conditions (power
assist).
Action
Certain amount of noise level
acceptable, not a safety critical
item.
Certain amount of noise level
acceptable, not a safety critical
item.
Symptom
Power steering system knock
noise - a heavy loud repeating
sound like a knock on a door that
occurs in several driving and
steering conditions.
Power Steering Hammer Knock (Hydraulic) 1. Turn the steering wheel to a steering lock
Noise position and return quickly.
Possible Sources
Power steering system knock
noise
- a damped, metallic knock
noise which only occurs at
steering condition with engine off
(very high efforts),
Tolerances in the steering gear
components.
Test Condition
Action
REFER to Steering System.
REFER to: Steering System (21
1 -
00, Diagnosis and Testing).
Symptom
Power steering system knock
noise - clear knock noise from
steering gear linkage area.
Listen for steering knock noise with the engine
speed at idle in the following test conditions (for
vehicles with hydraulic power assisted steering only, not electro-hydraulic power steering).
Possible Sources
Worn tie-rod ball joints (inner and
outer ball joints).
Symptom Possible Sources Action
hitting the suspension cross- Certain
amount of noise level
by pressure impulse in gear and
return line).
Power Steering Hydraulic KnocWClonk 1. Drive over cobbled roads at low speed 10-30
Noise kmlh (6-20 mph) with and without turning.
2. Drive over straight tar strips road rails or 25 mm
Test Condition tall harshness strips at low speed 10-30 kmlh
Listen for steering knocklclonk noise in the (6-20
mph) both driving straight and with
following test conditions with the windows closed. moderate turning.
2006.0 Fiesta 1212006 G37349en
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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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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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204-01 -3 Front Suspension 204-01 -3
DESCRIPTION AND OPERATION
Front Suspension
Overview
N0TE:During installation of the front wheel bearing
it is important to adhere to the specified installation
position, as the anti-lock brake system
( ABS )
sensor ring is located in the wheel bearing. A
coloured rubber ring is provided to indicate the
correct installation position. If the wheel bearing
were to be installed incorrectly then this would
cause failure of the ABS
.
A newly developed Mc-Pherson front suspension
with L-shaped lower arms is used. These lower
suspension arms are linked via large rubber
mountings to a reinforced and extremely rigid front
axle crossmember.
The ball head between the lower suspension arm
and the suspension strut is secured with three
rivets. Toe-in is adjusted via adjustable track rods.
The lower suspension arms can only be replaced as a complete unit.
2006.0 Fiesta IZIZOO~ GI 67080en
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204-01 -9 Front Suspension 204-0 I -9
REMOVAL AND INSTALLATION
Front Stabilizer Bar(l4 752 0)
i , Special Tool(s1
General Equipment
205524
I Transmission jack 1
Alignment Pins, Subframe
205-524 (1 5-1 22)
I Wooden block I
Removal
1. N0TE:Make sure the road wheels are in the
straight ahead position.
Centralize the steering and lock
it in position.
2. Detach the steering column shaft from the
steering gear pinion.
Discard the retaining bolt.
3. Raise and support the vehicle.
For additional information, refer to: Jacking
(100-02 Jacking and Lifting, Description
and Operation)
I Lifting (1 00-02 Jacking and Lifting,
Description and Operation).
4. N0TE:Use a 5 mm Allen key to prevent the
ball joint from rotating.
Detach the stabilizer bar connecting link from
the stabilizer bar on both sides.
5. Remove the engine support insulator.
2006.0 Fiesta 1212006 GI 83758en
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204-01 -1 0 Front Suspension 204-01 -1 0
REMOVAL AND INSTALLATION
6. Detach the exhaust system from the exhaust 12. Remove the stabilizer bar bushings.
hanger insulator. For additional information, refer to: Front
Stabilizer Bar Bushing
(204-01 Front
Suspension, Removal and lnstallation).
Installation
1. Install the stabilizer bar bushings.
For additional information, refer to: Front
Stabilizer Bar Bushing
(204-01 Front
Suspension, Removal and lnstallation).
2. Position the stabilizer bar on the
crossmember.
3. N0TE:Do not fully tighten the stabilizer bar
7. Using a suitable transmission jack and a clamp
retaining bolts at this stage.
wooden block, support the crossmember.
Install the stabilizer bar clamp on both sides.
8. Remove the crossmember retaining bolts on
both sides.
4' AWARNING:~~~~ installing the stabilizer
bar, the measurement must be taken in a
9. Lower the crossmember to gain access to
the stabilizer bar. vertical plane
between the crossmember and
the stabilizer bar. Failure to follow this
10. Remove the stabilizer bar clamp on both instruction
may result in personal injury.
sides. Set the stabilizer bar to the installation
setting.
11. Remove the stabilizer bar.
Using cable ties, support the stabilizer bar
on both sides.
2006.0 Fiesta 1212006 GI 83758en
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204-01 -1 I Front Suspension 204-01 -1 1
REMOVAL AND INSTALLATION
5. Install the stabilizer bar.
i Tighten the bolts in two stages. Stage 1 : 10 Nm.
Stage 2: 55 Nm.
6. Remove the cable ties.
7. Using the transmission jack and the wooden
block, position the crossmember.
8. N0TE:Use the inner crossmember retaining
bolt to locate the special tools.
Install the special tools on both sides.
&AUTION:W~~I~ tightening the
crossmember retaining bolts, make sure the
crossmember does not move. Install the
crossmember retaining bolts on
both sides.
10. Remove the special tools.
11. Install the crossmember inner retaining
bolts on both sides.
12. Remove the transmission jack and wooden
block.
13. Attach the exhaust system to the exhaust
hanger insulator.
2006.0 Fiesta 12/2006 GI 83758en
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