automatic transmission FORD MUSTANG 2003 User Guide

„
Loudness proportional to vehicle speed. Low- frequency noise at high
speeds, noise and loudness increase with speed. GO to Symptom Chart —
Driveline Noise/Vibration .
„ A low- pitched noise (drumming). GO to Symptom Chart — Engine
Noise/Vibration .
„ Vibration occurs at a particular speed (mph) regardless of acceleration or
deceleration. GO to Symptom Chart — Tire Noise/Vibration .
„ Noise varies with wind/vehicle speed and direction. GO to Symptom Chart — Air Leak and Wind Noise .
„ Related to engine speed.
„Noise varies with engine rpm. GO to Symptom Chart — Engine
Noise/Vibration .
„ Vibration occurs at a particular speed (mph) regardless of engine speed
(rpm).
2. Acceleration
„Wide open throttle (WOT)
„Engine induced contact between components. Inspect and repair as
necessary.
„ Noise is continuous throughout WOT. Exhaust system or engine ground
out. GO to Symptom Chart — Engine Noise/Vibration .
„ Light/moderate acceleration
„Tip- in moan. Engine/exhaust noise. GO to Symptom Chart — Engine
Noise/Vibration .
„ Knock-type noise. GO to Symptom Chart — Engine Noise/Vibration .
„ Driveline shudder. GO to Symptom Chart — Driveline Noise/Vibration .
„ Engine vibration. GO to Symptom Chart — Engine Noise/Vibration .
3. Turning noise. GO to Symptom Chart — Steering Noise/Vibration .
4. Braking
„Clicking sound is signaling ABS is active. Acceptable ABS sound.
„ A continuous grinding/squeal. GO to Symptom Chart — Brake Noise/Vibration .
„ Brake vibration/shudder. GO to Symptom Chart — Brake Noise/Vibration .
5. Clutching
„A noise occurring during clutch operation. GO to Symptom Chart — Transmission
(Manual) and Transfer Case Noise/Vibration .
„ Vibration. GO to Symptom Chart — Transmission (Manual) and Transfer Case
Noise/Vibration .
6. Shifting
„Noise or vibration condition related to the transmission (automatic). GO to
Symptom Chart — Transmission (Automatic) Noise/Vibration .
„ Noise or vibration related to the transmission (manual). GO to Symptom Chart —
Transmission (Manual) and Transfer Case Noise/Vibration .
7. Engaged in four- wheel drive. GO to Symptom Chart — Transmission (Manual) and
Transfer Case Noise/Vibration .
8. Cruising speeds
„Accelerator pedal vibration. GO to Symptom Chart — Engine Noise/Vibration .
„ Driveline vibration. GO to Symptom Chart — Driveline Noise/Vibration .
„ A shimmy or shake. GO to Symptom Chart — Tire Noise/Vibration .
9. Driving at low/medium speeds Klj . 11 ba
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port. DISCARD the leaking
parts, and INSTALL a new
component.
z Vehicles with a
plastic intake
manifold. z
Acceptable condition. Some
plastic manifolds exhibit this
noise, which is the effect of
the plastic manifold.
z Automatic
transmission buzz or
hiss z
Incorrect
driveline
angles. z
CHECK for correct driveline
angles. REPAIR as
necessary. REFER to
Section 205 - 00 .
z Worn or
damaged main
control
solenoids or
valves. z
Using a transmission tester,
activate the solenoids to
duplicate sound. INSTALL
new components as
necessary. REFER to
Section 307 - 01 .
z Manual Transmission
Clutch throw- out
bearing whine. A
change in noise pitch
or loudness while
depressing the clutch
pedal z
Worn throw- out
bearing. z
INSTALL a new throw- out
bearing. REFER to Section 308 - 01 .
z Heating, vacuum and
air conditioning
(HVAC) system chirp
— most audible inside
the vehicle. Listen for
a change in noise
pitch or loudness
while changing the
HVAC system blower
speed z
Damaged or
worn HVAC
blower bearing. z
INSTALL a new blower
motor. REFER to Section 412 - 02 .
z Air conditioning (A/C)
clutch ticking —
occurs when the
compressor clutch
engages z
Acceptable
noise.
z Incorrect air
gap. z
LISTEN to the clutch to
determine if the noise occurs
with clutch engagement. A
small amount of noise is
acceptable. If the noise is
excessive, CHECK the A/C
clutch air gap. INSPECT the
A/C clutch for wear or
damage. INSTALL a new
clutch as necessary. REFER
to Section 412 - 03 .
z Intermittent rattle, or
scraping/rubbing
noise z
Loose exhaust
heat shield(s). z
INSPECT the exhaust
system for loose parts using
a glove or clamps to verify
cause. REPAIR as
necessary. REFER to
Section 309 - 00 .
z Wiring, hose or
other part
interfering with
accessory drive
belt or pulley. z
INSPECT accessory drive
system closely verifying
there is adequate clearance
to all rotating components.
REPAIR as necessary.
z Engine ticking or
knocking noise —
occurs during idle or z
Piston noise or
valvetrain noise
(bled down z
Go To Pinpoint Test G . Klj . 30 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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2.
NOTE: Measure the end play with a Dial Indicator with Bracketry and not by feel.
Knock is also caused by excessive end play in the axle shafts. Up to 0.762 mm (0.030 inch) is
allowed in semi- float axles. The frequency of the knock will be less because the axle shaft
speed is slower than the driveshaft.
Clunk
Clunk is a metallic noise heard when the automatic transmission is engaged in REVERSE or DRIVE.
The noise may also occur when throttle is applied or released. It is caused by backlash somewhere in
the driveline or loose suspension components; it is felt or heard in the axle. Refer to Total Backlash
Check in this section.
Additionally, clunk may be heard upon initial drive- away. This occurs as engine torque shifts vehicle
weight, forcing changes in driveline angles, preventing the driveshaft slip- yoke from sliding on the
output shaft. To correct for this condition, lubricate the slip- yoke splines.
Total Backlash Check 1. Raise and support the vehicle. Refer to Section 100 - 02 .
2. Remove the driveshaft. Refer to Section 205 - 01 .
3. Install the special tool. zClamp a rigid bar or pipe to the tool. Clamp the other end of the bar or pipe to the frame
or a body member in order to prevent movement of the rear axle pinion flange.
4. Lower the vehicle so that one rear wheel is resting on a wheel chock to prevent it from turning. The other rear wheel will be used to measure total rear axle backlash.
5. Rotate the free wheel slowly, by hand, until the feeling of driving the rear axle is encountered. Place a mark on the side of the tire, 305 mm (12 inches) from the center of the wheel, with a Klj . 9 ba
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REMOVAL AND INSTALLATION
Switch —
Traction Control
Removal and Installation 1. NOTE: If the vehicle is equipped with an automatic transmission, position the shift lever in the 1
position before detaching the floor console finish panel.
Lifting from both sides, detach the floor console finish panel.
2. Disconnect the electrical connector and position the finish panel out of the way.
3. Reaching behind the center finish panel, push and detach the switch from the finish panel.
4. Disconnect the electrical connector and remove the switch.
SECTION 206-
09B: Anti-Lock Control — Traction Control 2003 Mustang Workshop Manual Klj . 1 ba
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6. Remove the pinch bolt and disconnect the coupling from the steering column.
7. Disconnect the electrical connector.
Vehicles with manual transmission 8. Remove the nuts and the steering column. zDiscard the nuts.
Vehicles with automatic transmission 9. Remove the nuts and lower the steering column. zDiscard the nuts. Klj . 2 ba
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Cylinder Block and Lower End Components 9 18801 Radio ignition interference capacitor
10 12281 Ignition wire set —
LH 11 18696 Tube assembly
12 9424 Intake manifold (lower)
13 9439 Intake manifold gasket —
RH 14 9439 Intake manifold gasket —
LH 15 9A424 Intake manifold seal (rear)
16 6A008 Cylinder head-
to-block dowel 17 6010 Cylinder block
18 6A373 Engine rear plate (automatic transmission)
19 6375 Flywheel (automatic transmission)
20 6375 Flywheel (manual transmission)
21 6A372 Engine rear plate (manual transmission)
22 6723 Oil pan rear seal
23 6675 Oil pan
24 7120 Pilot bushing
25 9278 Oil pressure sensor
26 9B339 Oil pressure sensor fitting
27 9A424 Intake manifold seal (front)
28 18663 Heater water outlet tube
29 8255 Thermostat housing-
to-intake manifold gasket 30 8592 Water outlet connection
31 9875 Water thermostat
32 9D475 EGR valve
33 9H465 Vacuum control solenoid
34 9723 Accelerator cable bracket
35 9E936 Throttle body gasket
36 9J433 EGR transducer
37 9E498 Vacuum hose
38 12280 Ignition wire set —
RH Klj . 5 ba
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Vehicle equipped with automatic transmission
33. Remove the access cover.
34. NOTE: Discard the torque converter nuts.
Disconnect the torque converter (7902). zRemove the four nuts.
35. Remove the oil pan- to-transmission bolts. Klj . 8 ba
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Vehicles equipped with automatic transmission
9. Install the five bellhousing upper bolts.
10. Install the bolts.
11. Install the four torque converter nuts.
All vehicles Klj . 3 ba
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A modular engine is built around four modules:
zthe intake module
z the cylinder head module (RH)
z the cylinder head module (LH)
z the lower engine module
While not all repairs can take advantage of the modular concept, most out-of- vehicle repairs benefit
due to the reduction of necessary time and labor.
The basic engine components consist of the following:
zsingle overhead camshafts
z two valves per cylinder
z sequential multiport fuel injection (SFI)
z aluminum cylinder heads (6049)
z cast iron, 90- degree V-shaped cylinder block
z individual ignition coils for each spark plug
z composite-material intake manifold
z large- bore throttle body N605919 Bolt
174 18663 Heater water tube
175 N806007 Dowel (2 req'd)
176 N807198 Dowel (2 req'd)
177 N806168 Bolt (6 req'd)
178 6375 Flywheel (automatic transmission)
179 6310 Crankshaft oil slinger
180 6701 Crankshaft rear oil seal
181 N806155 Bolt (6 req'd)
182 6K318 Crankshaft rear oil seal and retainer
183 7120 Transmission input shaft pilot bearing
184 N806435 Pipe plug
185 N87836 Dowel (2 req'd) Klj . 8 ba
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