height FORD MUSTANG 2003 Workshop Manual

Clonk
A hydraulic knocking sound. Sound occurs with air pockets in a hydraulic system. Also described as
hammering.
Clunk/Driveline Clunk
A heavy or dull, short-
duration, low-frequency sound. Occurs mostly on a vehicle that is accelerating or
decelerating abruptly. Also described as a thunk.
Coast/Deceleration
Releasing the accelerator pedal at cruise, allowing the engine to reduce vehicle speed without
applying the brakes.
Coast/Neutral Coast
Placing the transmission range selector in NEUTRAL (N) or depressing the clutch pedal while at
cruise.
Constant Velocity (CV) Joint
A joint used to absorb vibrations caused by driving power being transmitted at an angle.
Controlled Rear Suspension Height
The height at which a designated vehicle element must be when driveline angle measurements are
made.
Coupling Shaft
The shaft between the transfer case and the front drive axle or, in a two- piece rear driveshaft, the front
section.
CPS
Cycles per second. Same as hertz (Hz).
Cracks
A mid- frequency sound, related to squeak. Sound varies with temperature conditions.
Creak
A metallic squeak.
Cruise
Constant speed on level ground; neither accelerating nor decelerating.
Cycle
The process of a vibrating component going through a complete range of motion and returning to the Klj . 4 ba
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glass
zAir traveling up
windshield molding
along A- pillar. z
INSTALL foam rope the
full length of the A- pillar.
z Windshield/backlite
misaligned or not
installed correctly. z
REINSTALL the
windshield/backlite.
z Rear hood seal at base
of windshield
misaligned/damaged. z
REALIGN or INSTALL a
new seal as necessary.
z Air leak at cowl zCowl gasket
misaligned/damaged. z
REALIGN or INSTALL a
new seal as necessary.
z Air leak around
liftgate perimeter z
Loose fit seal. zPINCH the seal carrier to
improve retention on the
seal flange or INSERT
foam in the carrier.
z Seal misaligned. zREINSTALL the seal.
z Liftgate misaligned. zREALIGN the liftgate.
CHECK the liftgate fit in
the body opening and
ADJUST as necessary.
z Scuff plate misaligned. zREINSTALL the scuff
plate.
z Seal or seal push pins
damaged. z
INSTALL a new seal.
z Air leak around
the liftgate flip
window
perimeter z
Loose fit seal. zPINCH the seal carrier to
improve the retention to
the seal flange.
z Seal misaligned. zREINSTALL the seal.
z Glass misaligned. zREALIGN the glass.
z Seal damaged. zINSTALL a new seal.
z Wind noise from
antenna z
Shape of antenna. zINSTALL an antenna boot
or a spiral antenna.
z Air leak around
antenna cable access
hole. z
INSPECT the antenna
access hole grommet.
REPAIR as necessary.
z Air leak from
closed roof
opening panel z
Seal installed
incorrectly. z
REINSTALL the seal.
z Roof opening panel
glass/door misaligned. z
REALIGN the roof
opening panel glass/door.
z Roof opening panel
damaged. z
INSTALL a new roof
opening panel.
z Buffeting from an
open roof
opening panel z
Wind deflector
inoperative/damaged. z
REPAIR or INSTALL a
new wind deflector as
necessary.
z Wind deflector height
incorrect. z
ADJUST the wind
deflector higher.
z Wind noise
created by
airflow over or
behind body
panels z
Fender splash shield
misaligned. z
REALIGN the fender
splash shield. Klj . 14 ba
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z
Loose rear
spring U- bolts. z
INSPECT the U- bolts.
TIGHTEN the U- bolt nuts to
specification. REFER to
Section 204 - 02 .
z Incorrect or high
CV joint
operating angle. z
CHECK vehicle ride height
is within limits. REPAIR as
necessary. REFER to
Section 206 - 00 .
z Damaged or
worn front
suspension
components. z
CHECK for a loose stabilizer
bar, damaged or loose
strut/strut bushings or loose
or worn ball joints. INSPECT
the steering linkage for wear
or damage. REPAIR or
INSTALL new components
as necessary.
z Driveline angles
out of
specification. z
CHECK for correct driveline
angles. REPAIR as
necessary. 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 Binding,
damaged or
galled splines
on the driveshaft
slip- yoke z
CLEAN and INSPECT the
splines of the slip- yoke,
driveshaft and coupling
shaft for a worn, damaged
or galled condition.
INSTALL a new slip- yoke or
driveshaft assembly as
necessary. REPAIR as
necessary. REFER to
Section 205 - 01 .
z Driveline vibration—
occurs at cruising
speeds z
U-joints are
worn. z
CHECK for wear or incorrect
seating. INSTALL new U-
joints as necessary. REFER
to Section 205 - 01 .
z Worn or
damaged
driveshaft center
bearing support. z
CHECK the insulator for
damage or wear. ROTATE
the driveshaft and CHECK
for rough operation.
INSTALL a new center
bearing support as
necessary. REFER to
Section 205 - 01 .
z Loose axle
pinion flange
bolts. z
INSPECT the axle pinion
flange. TIGHTEN the pinion
flange bolts to specification.
REFER to Section 205 - 01 .
z Excessive axle
pinion flange
runout. z
CARRY OUT a Runout
Check. REPAIR as
necessary. REFER to
Section 205 - 01 .
z Driveshaft is
out-of- balance. z
CHECK the driveshaft for
damage, missing balance
weights or undercoating.
CHECK driveshaft balance. Klj . 22 ba
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acceleration from a slow
speed or stop
assembly
mispositioned. and the rear suspension
for damage or wear.
REPAIR as necessary.
z Incorrect or high
CV joint
operating angle. z
CHECK vehicle ride
height is within limits.
REPAIR as necessary.
z Damaged or
worn front
suspension
components. z
CHECK for a loose
stabilizer bar, damaged
or loose strut/strut
bushings or loose or
worn ball joints.
INSPECT the steering
linkage for wear or
damage. REPAIR or
INSTALL new
components as
necessary.
z Shimmy—most
noticeable on
coast/deceleration. Also
hard steering condition z
Excessive
positive caster. z
CHECK the caster
alignment angle.
CORRECT as
necessary. REFER to
Section 204 - 00 .
Symptom Chart—
Tire Noise/Vibration Condition
Possible Sources Action
z Tire noise— hum/moan
at constant speeds z
Abnormal wear
patterns. z
SPIN the tire and CHECK
for tire wear. INSTALL a
new tire as necessary.
INSPECT for
damaged/worn suspension
components. CARRY OUT
wheel alignment.
z Tire noise— noise tone
lowers as the vehicle
speed is lowered z
Out-of- balance
tire. z
BALANCE the tire and
road test. INSTALL a new
tire as necessary. REFER
to Section 204 - 04 .
z Tire noise — ticking
noise, changes with
speed z
Nail puncture or
stone in tire
tread. z
INSPECT the tire. REPAIR
as necessary.
z Wheel and tire—
vibration and noise
concern is directly
related to vehicle
speed and is not
affected by
acceleration, coasting
or decelerating z
Damaged or
worn tire. z
Go To Pinpoint Test J .
z Tire wobble or
shudder — occurs at
lower speeds z
Damaged wheel
bearings. z
SPIN the tire and CHECK
for abnormal wheel
bearing play or roughness.
ADJUST or INSTALL new
wheel bearings as
necessary. REFER to
Section 204 - 01 .
z Damaged wheel. zINSPECT the wheel for
damage. INSTALL a new
wheel as necessary.
REFER to Section 204 -Klj . 38 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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Toe
Positive Toe (Toe In)
Negative Toe (Toe Out)
The vehicle toe setting affects tire wear and directional stability.
Ride Height
Front Ride Height Measurement Klj . 2 ba
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Rear Ride Height Measurement —
GT and Base Item Description
1 Ride height = B -
A 2 Measurement A
3 Measurement B Klj . 3 ba
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Wheel Track
Dogtracking
Dogtracking or thrust angle is the condition in which the rear axle is not square to the chassis. Heavily
crowned roads can give the illusion of dogtracking.
Wander
Wander is the tendency of the vehicle to require frequent, random left and right steering wheel (3600)
corrections to maintain a straight path down a level road. Item Description
1 Body reinforcement
2 Ride height (shortest distance)
3 Rear axle
Item Part Number Description
1 — Front track
2 — Rear track
Item Part Number Description
1 — Vehicle centerline
2 — Axle centerline
3 — Thrust angle Klj . 4 ba
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6. If an obvious cause for an observed or reported condition is found, correct the cause (if
possible) before proceeding to the next step.
7. If the fault is not visually evident, determine the symptom and GO to Symptom Chart .
Symptom Chart z
Front wheel bearing(s)
z Loose or damaged front or rear suspension components
z Loose, damaged or missing suspension fastener(s)
z Damaged spring(s)
z Damaged or leaking strut and spring assemblies
z Damaged or leaking shock absorber(s)
z Worn or damaged suspension bushing(s)
z Loose, worn or damaged steering system components
z Damaged axle components
Symptom Chart Condition
Possible Sources Action
z Dogtracking zExcessive rear
thrust angle. z
CHECK the wheel alignment.
ADJUST as necessary.
z Front or rear
suspension
components. z
INSPECT the front and rear
suspension system. REPAIR
or INSTALL new suspension
components as necessary.
REFER to Section 204 - 01 or
Section 204 - 02 .
z Drive axle
damaged. z
REPAIR as necessary. Refer
to the appropriate section in
Group 205 for the procedure..
z Drift/pull zUnequal tire
pressure. z
ADJUST tire pressure.
z Excessive side-to-
side difference in
caster or camber. z
CHECK the wheel alignment.
ADJUST as necessary.
z Tire forces. zROTATE tires front to rear.
z Unevenly loaded or
overloaded vehicle. z
NOTIFY the customer of
incorrect vehicle loading.
z Steering
components. z
REFER to Section 211 - 00 .
z Brake drag. zREFER to Section 206 - 00 .
z Front bottoming
or riding low z
Strut(s). zINSTALL new strut(s) as
necessary. REFER to Section 204 - 01 .
z Front coil springs
(5310). z
CHECK ride height. INSTALL
new springs as necessary.
REFER to Section 204 - 01 .
z Incorrect tire
wear z
Incorrect tire
pressure (rapid
center rib or inner
and outer edge
wear). z
ADJUST tire pressure. Klj . 2 ba
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REFER to
Section 204 - 04 .
z Strut(s). zINSTALL new strut(s) as
necessary. REFER to Section 204 - 01 .
z Shock absorber(s). zINSTALL new shock absorber
(s) as necessary.
z Loose front
stabilizer bar (5482)
or rear stabilizer
bar (5A772). z
TIGHTEN to specification.
REFER to Section 204 - 01 or
Section 204 - 02 .
z Worn stabilizer
assembly bushing
(s). z
INSTALL new bushing(s) as
necessary. REFER to Section 204 - 01 or
Section 204 - 02 .
z Front coil spring(s)
or rear spring(s). z
INSTALL new front coil
springs or rear springs as
necessary. REFER to Section 204 - 01 or
Section 204 - 02 .
z Vehicle leans to
one side z
Unevenly loaded or
overloaded vehicle. z
NOTIFY the customer of
incorrect vehicle loading.
z Front or rear
suspension
components. z
INSPECT the front and rear
suspension system. REPAIR
or INSTALL new suspension
components as necessary.
REFER to Section 204 - 01 or
Section 204 - 02 .
z Front coil springs or
rear springs. z
INSTALL new front coil
springs or rear springs as
necessary. REFER to Section 204 - 01 or
Section 204 - 02 .
z Incorrect ride
height. Lateral tilt
out of specification. z
CHECK ride height. INSTALL
new front coil springs or rear
springs as necessary. REFER
to Section 204 - 01 or
Section 204 - 02 .
z Vibration/noise zTire or wheel
runout.
z Tire flatspotting.
z Wheel bearings.
z Wheel hubs.
z Brake components.
z Suspension
components.
z Steering
components. z
REFER to Section 100 - 04 .
z Wander zUnevenly loaded or
overloaded vehicle. z
NOTIFY the customer of
incorrect vehicle loading.
z Ball joint(s). zGO to the Ball Joint Inspection
component test in this section.
z Front wheel bearing
(s). z
REFER to Wheel Bearing Inspection in this section.
z Loose, worn or
damaged
suspension
components(s). z
INSTALL new suspension
components as necessary.
REFER to Section 204 - 01 or
Section 204 - 02 .
z Loose suspension
fasteners. z
TIGHTEN to specification.
REFER to Section 204 - 01 or
Section 204 - 02 . Klj . 4 ba
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