2003 FORD MUSTANG lock

NOTE:
A serpentine drive belt decreases the usefulness of this test. In these cases, use a
vibration analyzer, such as the VA, to pinpoint accessory vibrations. An electronic listening
device, such as an EngineEAR, will also help to identify noises from specific accessories.
Remove the accessory drive belts.
z Increase the engine rpm to where the concern occurs.
z If the vibration/noise is duplicated when carrying out this test, the belts and accessories are not
sources.
z If the vibration/noise was not duplicated when carrying out this test, install each accessory belt,
one at a time, to locate the source.
Vehicle Cold Soak Procedure
To carry out this procedure, proceed as follows:
zTest preparations include matching customer conditions (if known). If not known, document the
test conditions: gear selection and engine rpm. Monitor the vibration/noise duration with a watch
for up to three minutes.
z Park the vehicle where testing will occur. The vehicle must remain at or below the concern
temperature (if known) for 6- 8 hours.
z Before starting the engine, conduct a visual inspection under the hood.
z Turn the key on, but do not start the engine. Listen for the fuel pump, anti- lock brake system
(ABS) and air suspension system noises.
z Start the engine.
z CAUTION: Never probe moving parts.
Isolate the vibration/noise by carefully listening. Move around the vehicle while listening to find
the general location of the vibration/noise. Then, search for a more precise location by using a
stethoscope or EngineEAR.
z GO to Symptom Chart — Idle Noise/Vibration to assist with the diagnosis.
6: Check OASIS/TSBs/Repair History
After verifying the customer concern, check for OASIS reports, TSBs and the vehicle repair history for
related concerns. If information relating to a diagnosis/repair is found, carry out the procedure(s)
specified in that information.
If no information is available from these sources, carry out the vehicle preliminary inspection to
eliminate any obvious faults.
7: Diagnostic Procedure
Qualifying the concern by the particular sensation present can help narrow down the concern. Always
use the "symptom" to "system" to "component" to "cause" diagnosis technique. This diagnostic method
divides the problem into related areas to correct the customer concern.
zVerify the "symptom".
z Determine which "system(s)" can cause the "symptom".
„If a vibration concern is vehicle speed related, the tire and wheel rpm/frequency or
driveshaft frequency should be calculated.
„ If a vibration concern is engine speed related, the engine, engine accessory or engine
firing frequencies should be calculated. Klj . 9 ba
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z
No contact with side
glass. z
ADJUST the door glass.
z No contact with glass
runs at both ends of
belt line seal. z
ADJUST the belt line seal
or ADD foam at the seal
ends.
z Belt line seal damaged. zINSTALL a new seal.
z Air leak at outer
belt line z
Belt line seal installed
incorrectly on flange
(no glass contact). z
ADJUST the seal.
z Belt line seal does not
contact the glass. z
ADJUST the door glass.
z No contact with glass
runs at both ends of
belt line seal. z
ADJUST the belt line
seal/ADD foam at the seal
ends.
z Belt line seal damaged. zINSTALL a new seal.
z Draft at inner
door
handle/speaker
opening z
Hole in watershield. zSEAL the hole with a
suitable tape.
z Watershield
misaligned. z
REALIGN the watershield.
INSTALL a new
watershield if the pressure
sensitive adhesive fails.
z Exterior door handle
seal
misaligned/damaged. z
REALIGN or INSTALL a
new seal as necessary.
z Wind noise from
side view mirror z
Outside mirror housing
misaligned. z
REALIGN with the edges
shingled correctly and no
gaps.
z Mirror sail gasket
folded/misaligned. z
REINSTALL with the
gasket unfolded and
aligned correctly.
z Mirror housing trim cap
installed incorrectly. z
REINSTALL with the
edges shingled to the air
flow.
z Air leak through mirror
housing hinge. z
Fully ENGAGE the mirror
into its operating
position/USE foam to
block the air path through
the hinge.
z Inner sail trim installed
incorrectly. z
REINSTALL the sail
trim/ADJUST the door
trim.
z Inner sail gasket/barrier
installed incorrectly. z
REINSTALL the trim
cover with the
gasket/barrier aligned
correctly.
z Air path through wiring
bundle/fastener access
holes. z
BLOCK the air path(s)
with foam/tape.
z Exposed fastener
access hole on mirror
housing/sail. z
INSTALL a new cap if it is
missing.
z Air leak around
perimeter of fixed z
Gaps in the sealant
bead. z
APPLY approved sealant. Klj . 13 ba
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Section 204 - 01 .
z Damaged or
worn wheel
bearings z
CHECK for abnormal wheel
bearing play or roughness.
Refer to Wheel Bearing Check in this section.
ADJUST or INSTALL new
wheel bearings as
necessary.
z Clicking or
snapping— occurs
when accelerating
around a corner z
Damaged or
worn outboard
CV joint. z
INSPECT the outboard CV
joint and boot. REPAIR or
INSTALL a new CV joint as
necessary.
z High pitched
chattering— noise
from the rear axle
when the vehicle is
turning z
Incorrect or
contaminated
lubricant. z
CHECK the vehicle by
driving in tight circles (5
clockwise, 5
counterclockwise). FLUSH
and REFILL with the
specified rear axle lubricant
and friction modifier as
necessary.
z Damaged or
worn differential
(differential side
gears and pinion
gears). z
DISASSEMBLE the
differential assembly.
INSPECT the differential
case, pin and gears for wear
or damage. REPAIR or
INSTALL a new differential
as necessary. REFER to
Section 205 - 02A for Ford
7.5 rear axles or Section 205 - 02B for Ford 8.8
integral axles.
z Buzz—buzzing noise
is the same at cruise
or coast/deceleration z
Damaged or
worn tires. z
CHECK for abnormal tire
wear or damage. INSTALL a
new tire as necessary.
REFER to Section 204 - 04 .
z Incorrect
driveline angles. z
CHECK for correct driveline
angles. REPAIR as
necessary. REFER to
Section 205 - 00 .
z Rumble or boom—
noise occurs at
coast/deceleration,
usually driveshaft
speed related and
noticeable over a
wide range of speeds z
Driveshaft is
out-of- balance. z
CHECK the driveshaft for
damage, missing balance
weights or undercoating.
CHECK the driveshaft
balance. CARRY OUT a
driveline vibration test.
REFER to Section 205 - 00 .
z U-joints binding
or seized. z
ROTATE the driveshaft and
CHECK for rough operation
or seized U- joints. INSTALL
new U- joints as necessary.
REFER to Section 205 - 01 .
z Excessive
pinion flange
runout. z
CARRY OUT a runout
check. REPAIR as
necessary. REFER to
Section 205 - 00 .
z Grunting— normally
associated with a
shudder experienced
during acceleration z
Driveshaft slip
yoke binding. z
CLEAN and LUBRICATE
the male and female
splines. Klj . 20 ba
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flange runout.
Symptom Chart—
Transmission (Automatic) Noise/Vibration Condition
Possible Sources Action
z Rattle— occurs
at idle or at
light
acceleration
from a stop z
Damaged engine or
transmission mounts. z
CHECK the
powertrain/drivetrain mounts
for damage. REPAIR or
INSTALL new mounts as
necessary.
z A loose front exhaust
pipe heat shield. z
REPAIR or INSTALL a new
heat shield as necessary.
z Loose inspection
plate or dust cover
plate. z
CHECK for loose bolts.
TIGHTEN to specifications.
REFER to Section 307 - 01 .
z Loose flex plate to
converter nuts. z
CHECK for loose nuts.
TIGHTEN to specifications.
REFER to Section 307 - 01 .
z Whine— pitch
increases with
vehicle speed.
Starts in first
and second
gear,
decreases or
goes away at
higher gears z
Damaged or worn low
one- way clutch.
z Damaged or worn
intermediate one- way
clutch.
z Friction elements.
z Damaged or worn
planetary or sun gear. z
INSPECT the transmission
for wear or damage. REPAIR
or INSTALL new components
as necessary. REFER to
Section 307 - 01 .
z Whine— the
pitch changes
with engine
speed z
A worn or damaged
accessory drive
component. z
CARRY OUT the Engine
Accessory Test. REPAIR or
INSTALL new components as
necessary.
z Incorrect fluid level. zCHECK that the transmission
is filled to the correct level.
ADD fluid as necessary.
REFER to Section 307 - 01 .
z Partially blocked filter. zINSPECT the filter. CLEAN or
INSTALL a new filter as
necessary. REFER to Section 307 - 01 .
z Worn or damaged
torque converter. z
CARRY OUT the torque
converter service and
replacement check. REFER
to Section 307 - 01 .
z Worn or damaged
front pump. z
INSPECT the front pump.
INSTALL a new front pump
as necessary. REFER to
Section 307 - 01 .
z Whine— pitch
changes with
vehicle speed z
Speedometer cable
or gears. z
REPAIR or INSTALL new
cables or gears as necessary.
z Whine/moan
type noise—
pitch increases
or changes
with vehicle
speed z
Damaged engine or
transmission mount. z
CHECK the
powertrain/drivetrain mounts
for damage. CARRY OUT
Powertrain/Drivetrain Mount Neutralizing in this section.
z U-joints worn or zINSPECT the U- joints for Klj . 45 ba
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PINPOINT TEST G: ENGINE TICKING, KNOCKING OR CONTINUOUS
RATTLE
PINPOINT TEST H: FRONT SUSPENSION NOISE CONDUCT diagnosis of
other suspect components.
Test Step Result / Action to Take
G1 CHECK FOR NOISE AT THE VALVE COVERS
AND THE FRONT COVERS (OHC ENGINES) z
Carry out the Vehicle Cold Soak Procedure in
this section.
z Key in START position.
z NOTE: For a short- duration ticking noise,
multiple engine starts may be necessary.
z Using an EngineEAR, listen closely at the valve
covers and the front covers (OHC engines) by
placing the probe near the surface of the valve
cover and then on the surface front cover.
z Key in OFF position.
z Is the noise source apparent? Yes
REMOVE the appropriate cover and
INSPECT for loose, worn/broken
components. REPAIR as necessary.
TEST the system for normal operation.
No
GO to
G2 .
G2 CHECK FOR NOISE AT THE CYLINDER
BLOCK z
Key in START position.
z Using an EngineEAR, listen closely at the
cylinder block by placing a probe on or near
each freeze plug.
z Key in OFF position.
z Is the noise source apparent? Yes
REPAIR or INSTALL new components
as necessary.
No
GO to
G3 .
G3 CHECK FOR NOISE WHILE DISCONNECTING
EACH FUEL INJECTOR ELECTRICAL
CONNECTOR, ONE AT A TIME z
Key in START position.
z Disconnect each fuel injector electrical
connector, one at a time, to decrease piston
force and listen for the noise.
z Key in OFF position.
z Is the noise reduced or eliminated? Yes
INSTALL a new fuel injector. TEST the
system for normal operation.
No
INSPECT accessory drive system or the
transmission as a possible source.
Test Step Result / Action to Take
H1 ROAD TEST THE VEHICLE
z
Test drive the vehicle.
z NOTE: An assistant will be needed for this road test.
z During the road test, drive the vehicle over a rough road.
Using ChassisEARs, determine from which
area/component the noise is originating.
z Is there a squeak, creak or rattle noise? Yes
GO to
H2 .
No
The suspension system is
OK. CONDUCT a diagnosis
on other suspect systems. H2 INSPECT THE STEERING SYSTEM
Yes Klj . 53 ba
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SPECIFICATIONS
SECTION 204-
00: Suspension System — General Information 2003 Mustang Workshop Manual Alignment Specifications
Item LH RH Total/Split
Front
Caster 3.2° ± 0.75° 3.2° ± 0.75° 0° ±
0.75° Camber—
GT and Base -
0.50° ± 0.75° -
0.50° ± 0.75° 0° ±
0.75° Camber—
Cobra -
0.90° ± 0.40° -
0.90° ± 0.40° 0° ±
0.40° Toe (positive value is toe-in, negative value is toe-
out) — — 0.25° ± 0.25°
Rear, Cobra
Caster — — —
Camber -0.8° ± 0.2° -
0.8° ± 0.2° 0° ±
0.50° Toe (positive value is toe-in, negative value is toe-
out) — — 0.20° ± 0.15°
General Specifications Item Specification
Front Ride Height
Front 4 mm ±
7.6 mm (0.2 in. ± 0.3 in.) Rear Ride Height
Rear —
GT and Base 128 mm (5 in.)
Rear — Cobra 18 mm ±
7.6 mm (1.4 in. ± 0.3 in.) Vehicle Lean (Side-
to-Side Differences) Front —
maximum 13 mm
(0.5 in.) Rear —
maximum 13 mm
(0.5 in.) Dogtracking
Maximum 13 mm (0.5 in.)
Clear vision (negative value is counterclockwise) -
2° ± 3° Ball Joint End Play
Lower ball joint —
maximum 0.8 mm
(1/32 in.)
Torque Specifications Klj . 1 ba
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SPECIFICATIONS
SECTION 204-
01: Front Suspension 2003 Mustang Workshop Manual Torque Specifications
Description Nm lb-
ft lb-
in Front shock absorber upper nut 100 74 —
Front shock absorber-
to-spindle nuts 200 148 —
Shock absorber upper mount-
to-body nuts 40 30 —
Shock absorber upper mount-
to-body bolt 40 30 —
Wheel hub and bearing retainer nut 350 258 —
Stabilizer bar bracket nuts 70 52 —
Stabilizer bar link nuts 19 14 —
Anti-
lock brake sensor bolt 6 — 53
Anti-
lock brake sensor wire bracket nut 28 21 —
Ball joint-
to-front wheel spindle nut 175 129 —
Front suspension lower arm-
to-body nuts 200 148 —
Tie-
rod- to-spindle nuts 55 41 —
Steering gear-
to-crossmember nuts 70 52 —
Wheel nuts 129 95 — Klj . 1 ba
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5.
CAUTION: Use care not to damage the tie- rod end dust boot.
Using the special tool, disconnect the tie- rod from the spindle.
6. Disconnect the front stabilizer bar link (5K483) from the front suspension lower arm (3078). 1. Remove the nut and bushing.
2. Disconnect the link.
7. CAUTION: Do not allow the intermediate shaft to rotate while it is disconnected
from the gear or damage to the clockspring can occur. If there is evidence that the
intermediate shaft has rotated, the clockspring must be removed and recentered. For
additional information, refer to Section 501 - 20B .
Remove the bolt and disconnect the intermediate shaft from the gear. zDiscard the bolt. Klj . 2 ba
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