stop start FORD MUSTANG 2003 Owner's Manual

Component Tests
Drive Belt Noise/Flutter
Drive belt chirp occurs due to pulley misalignment or excessive pulley runout. It can be the result of a
damaged pulley or an incorrectly aligned pulley.
To correct, determine the area where the noise comes from. Check each of the pulleys in that area
with a straightedge to the crankshaft pulley, looking for accessory pulleys out of position in the fore/aft
direction or at an angle to the straightedge.
Drive belt squeal is an intermittent noise that occurs when the drive belt slips on a pulley during certain
conditions, such as: engine start up, rapid engine acceleration, or A/C clutch engagement.
Drive belt squeal can occur:
zif any of the accessories are damaged, have a worn or damaged bearing, internal torsional
resistance above normal. All accessories should be rotatable by hand in the unloaded condition.
If not, inspect the accessory.
z if fluid gets on the drive belt. This includes power steering fluid, engine coolant, engine oil or air
conditioning system lubricant. If fluid does get on the drive belt during service, clean the drive
belt with soap and water and thoroughly rinse with clean water.
z NOTE: The drive belt tensioner arm should rotate freely without binding.
if the drive belt is too long. A drive belt that is too long will allow the drive belt tensioner arm to
go all the way to the arm travel stop under certain load conditions, which will release tension to
the drive belt. If the drive belt tensioner indicator is outside the installation wear range window,
install a new drive belt.
z if the drive belt tensioner is worn or damaged.
Belt Tension
NOTE: Drive belt tension is not adjustable.
The drive belt tensioner automatically adjusts drive belt tension. Symptom Chart Condition
Possible Sources Action
z Drive belt
noise, chirping,
flutter z
Defective/worn drive
belt.
z Misaligned pulley.
z Pulley runout.
z Damaged
accessories.
z Fluid contamination
of drive belt. z
GO to Component Tests, Drive
Belt, Noise/Flutter.
z Damaged or worn
drive belt tensioner. z
GO to Component Tests, Belt
Tensioner, Automatic.
z Premature
drive belt wear z
Defective drive belt.
z Misaligned pulley.
z Pulley runout.
z Damaged
accessories.
z Incorrectly installed
drive belt. z
GO to Component Tests, Drive
Belt Noise/Flutter and Drive
Belt Misalignment diagnosis. Klj . 2 ba
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C1 VERIFY DIAGNOSTIC TROUBLE CODES
z
Select PARK.
z Key in OFF position.
z NOTE: DTC codes P0705 and P0708 cannot be set by
an incorrectly adjusted digital TR sensor.
z Carry out on board diagnostic test.
z Are only DTC codes P0705, P0708 present? Yes
GO to
C4 .
No
GO to C2 .
C2 VERIFY DIGITAL TRANSMISSION RANGE SENSOR
ALIGNMENT z
Check to make sure the digital TR sensor harness
connector is fully seated, pins are fully engaged in
connector and in good condition before proceeding.
z Apply the parking brake.
z Select NEUTRAL.
z Disconnect the shift cable/linkage from the manual lever.
z Verify that the digital TR Sensor Alignment Tool fits in
the appropriate slots.
z Is the digital TR sensor adjustment OK? Yes
GO to
C3 .
No
ADJUST the digital TR sensor.
PLACE transmission range
selector lever in P and CLEAR
DTCs. REPEAT OBD Tests.GO
to C3 .
C3 VERIFY SHIFT CABLE/LINKAGE ADJUSTMENT
z
Place the manual lever in the overdrive position.
z Select DRIVE.
z Reconnect the shift cable/linkage.
z Verify that the shift cable/linkage is adjusted OK. Refer
to Section 307 - 05 .
z Is the shift cable/linkage adjusted OK? Yes
GO to
C4 .
No
ADJUST the shift cable/linkage.
REFER to Section 307 - 05 .
C4 CHECK ELECTRICAL SIGNAL OPERATION
z
Select PARK.
z Disconnect: Digital TR Sensor.
z CAUTION: Do not pry on connector. This will
damage the connector and result in a transmission
concern.
z Press the button and pull out on the digital TR harness
connector.
z Inspect both ends of the connector for damage or
pushed- out pins, corrosion, loose wires and missing or
damaged seals.
z Are the connector, pins and harness damaged? Yes
REPAIR as required. CLEAR
DTCs and REPEAT OBD
Tests.
No
If diagnosing a DTC, GO to
C5
.
If diagnosing a starting concern
or a reversing lamp concern,
GO to C10 .
C5 CHECK ELECTRICAL SYSTEM OPERATION (DIGITAL
TR AND PCM) z
Key in OFF position.
z Connect the diagnostic tool.
z Connect: Digital TR Sensor.
z Key in ON position.
z Enter the following diagnostic mode on the diagnostic
tool: TR PIDS TR, TR_D, TR_V.
z Move transmission range selector lever into each gear
and stop.
z Observe any of the following PIDs, TR and TR_D, TR_V
(vehicle dependent) while wiggling harness, tapping on
sensor, or driving the vehicle. Use PIDs TR, and TR_D
for DTCs P0705, P1704, and P1705. Use PIDs TR, and
TR_V for DTC P0708.
z Compare the PIDs to the Digital Transmission Range
(TR) Sensor Diagnosis Chart.
z Do the PIDs TR, TR_D and TR_V match the Digital
Transmission Range (TR) Sensor Diagnosis chart,
and does the TR_D PID remain steady when the Yes
The problem is not in the digital
TR sensor system. REFER to
Diagnosis By Symptom
in this
section for further diagnosis.
No
If TR_D changes when wiggling
harness, tapping on the sensor,
or driving the vehicle, the
problem may be intermittent.
GO to C6 . Klj . 10 ba
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DIAGNOSIS AND TESTING
Transmission Fluid Cooler
CAUTION: Whenever a transmission has been disassembled to install new parts, the
cooler bypass valve (CBV), all transmission fluid coolers (in tank and auxiliary) and
transmission fluid cooler lines must be cleaned and backflushed. Use a suitable the torque
converter/fluid cooler cleaner.
NOTE: Cleaning and backflushing the transmission fluid cooling system along with following all the
normal cleaning and inspection procedures in this section during disassembly and reassembly will
keep contamination from reentering the transmission and causing a repeat repair.
When internal wear or damage has occurred in the transmission, metal particles, clutch plate material,
or band material may have been carried into the torque converter and transmission fluid cooler. These
contaminants are a major cause of recurring transmission troubles and must be removed from the
system before the transmission is put back into use.
Transmission Fluid Cooler Flow Test
NOTE: The transmission linkage/cable adjustment, fluid level and line pressure must be within
specification before carrying out this test. Refer to Section 307 - 05 for adjustments.
1. Remove fluid level indicator from fluid filler tube.
2. Place funnel in fluid filler tube.
3. Position the vehicle on a hoist. For additional information, refer to Section 100 - 02 .
4. Remove the cooler return line (top fitting) from the fitting on the transmission case.
5. Connect one end of a hose to the cooler return line and route other end of the hose up to a point where it can be inserted into the funnel at the fluid filler tube.
6. Remove the safety stands and lower the vehicle. Insert end of hose into the funnel.
7. Start the engine and run it at idle with the transmission in NEUTRAL.
8. When fluid flows from the hose in a steady stream, a liberal amount of fluid should be observed. "Liberal" is about 1 liter (1 quart) delivered in 15 seconds. If a liberal flow is observed, the test is
complete.
9. If the flow is not liberal, stop the engine. Disconnect the hose from the cooler return line and connect it to the converter outlet fitting (bottom fitting) on the transmission case.
10. Repeat steps 6 and 7. If flow is now approximately 1 liter (1 quart) in 15 seconds, refer to Transmission Fluid Cooler — Backflushing and Cleaning in this section. If the flow is still not
approximately 1 liter (1 quart) in 15 seconds, repair or install pump and or converter.
For the installation of new transmission fluid cooler or tubes, refer to Section 307 - 02 .
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Klj . 1 ba
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PINPOINT TEST D: CLUTCH PEDAL PULSATION clutch disengaged and engine idling, move
the shift lever to a position halfway between
REVERSE and NEUTRAL.
z Slowly engage clutch. The transmission will
behave as if it is in NEUTRAL.
z Gear clash can now be heard if an attempt
is made to shift into REVERSE with the
clutch engaged. Reserve can now be
measured.
z While maintaining light pressure on the shift
selector, slowly press the clutch pedal to the
floor. The gear clash will stop and the shift
selector will slide into the REVERSE
position.
z Is there a minimum 19.05 mm (0.750 inch)
clutch pedal reserve? CHECK the clutch pressure plate and clutch
disc. INSTALL a new clutch pressure plate
or clutch disc if necessary. REFER to
Section 308
- 01 . TEST the system for
normal operation. Test Step Result / Action to Take
D1 CHECK THE CLUTCH PEDAL
PULSATION z
Key in START position.
z With the transmission in NEUTRAL,
slowly press the clutch pedal.
z Does the clutch pedal pulsate while
being pressed? Yes
GO to
D2 .
No
VERIFY customer concern. GO to Symptom Chart if necessary.
D2 INSPECT PRESSURE PLATE BOLTS
z
Inspect the pressure plate- to-flywheel
bolts.
z Are any of the pressure plate- to-
flywheel bolts loose? Yes
TIGHTEN or INSTALL new bolts. REFER to
Section 308
- 01 . TEST the system for normal
operation.
No
GO to D3 .
D3 INSPECT THE CLUTCH PRESSURE
PLATE z
Remove the clutch pressure plate.
Refer to Section 308 - 01 .
z INSPECT the clutch pressure plate for
damage. Refer to Pressure Plate Check .
z Are there any signs of damage
present on the clutch pressure plate? Yes
INSTALL a new clutch pressure plate. REFER
to
Section 308 - 01 . TEST the system for normal
operation.
No
GO to D4 .
D4 INSPECT THE CLUTCH DISC
z
Carry out the clutch disc inspection
procedure. Refer to Disc Check .
z Is the clutch disc OK? Yes
GO to
D5 .
No
INSTALL a new clutch disc. REFER to Section 308 - 01 . TEST the system for normal operation.
D5 INSPECT THE FLYWHEEL Klj . 9 ba
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PINPOINT TEST E: CLUTCH RELATED VIBRATIONS z
Inspect the flywheel for damage and
runout. Refer to Flywheel Runout Check .
z Is flywheel OK? Yes
GO to
D6 .
No
TIGHTEN, RESURFACE or INSTALL a new
flywheel as necessary. REFER to Section 308 -
01 . TEST the system for normal operation.
D6 INSPECT RELEASE LEVER
INTERFACE TO PIVOT STUD z
Inspect the release lever and the pivot
stud for damage or misalignment.
z Are there any signs of damage
present or misalignment between the
release lever and pivot stud? Yes
INSTALL a new pivot stud and release lever.
REFER to
Section 308 - 01 . TEST the system
for normal operation.
No
VERIFY customer concern. GO to Symptom Chart if necessary.
Test Step Result / Action to Take
E1 CHECK FOR ENGINE COMPONENT
GROUNDING z
Raise the vehicle on a hoist. Refer to
Section 100 - 02 .
z Check the engine and transmission
mounts for grounding.
z Check for exhaust manifolds or other
engine component grounding on the
body or frame.
z Is there evidence of grounding on
the body or frame? Yes
REPAIR the components as necessary. TEST the
system for normal operation.
No
GO to
E2 .
E2 CHECK FOR ACCESSORY DRIVE
VIBRATIONS z
Key in START position.
z Remove the accessory drive belt.
z Does the vibration stop when the
accessory drive belt is removed
from the engine? Yes
REFER to
Section 303 - 05 to diagnose the
accessory drive belt components.
No
STOP the engine and INSTALL the drive belt. GO
to E3 .
E3 CHECK FOR RELEASE BEARING
NOISE z
Key in START position.
z Depress and hold the clutch pedal.
z Is a whirring, grating, or grinding
noise present only when pedal is
pushed? Yes
INSTALL a new clutch release hub and bearing.
REFER to
Section 308 - 01 .
No
GO to E4 .
E4 INSPECT THE FLYWHEEL
z
Key in OFF position.
z Remove the transmission. Refer to
Section 308 - 03A or
Section 308 - 03B .
z Carry out a flywheel check. Refer to
Flywheel Runout Check . Yes
VERIFY customer concern. GO to
Symptom Chart if necessary.
No Klj . 10 ba
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z
Pull the tape measure up to the steering wheel. Position it
through the steering wheel opening.
z Depress the clutch fully and start the vehicle.
z Shift the transmission into reverse gear, then move the shift
lever forward to the position in between reverse gear and
neutral. Slowly release the clutch pedal (if the vehicle creeps
rearward, move the shift lever forward a little more). The
transmission will behave as if in neutral, but the reverse gear
synchronizer will be bypassed.
z With the clutch pedal up, gently pull the shift lever toward the
reverse gear position. Gear clash can now be heard.
z Slowly depress the clutch pedal. Using the steering wheel
inner seam as a reference, note the measurement when the
gear clash stops or the shift lever slides into reverse gear.
Depress the clutch pedal to the downstop. The difference
between the measurement taken when the gear clash Klj . 12 ba
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PINPOINT TEST G: EXCESSIVE NOISE contamination, REPAIR as
necessary. TEST the
system for normal
operation. If the
transmission is still hard to
shift, GO to
F9 .
No
TIGHTEN the bolts to 80
Nm (59 lb- ft). TEST the
system for normal
operation. If the
transmission is still hard to
shift, GO to F9 .
F9 INSPECT THE TRANSMISSION
z
Remove the transmission.
z Disassemble the transmission. Refer to Section 308 - 03B .
z Carry out the following:
zinspect all the shift rails for excessive scuffing or
wear.
z check the interlock pins on the shift rail.
z make sure the interlock bolts are tighten to 31 Nm (23
lb-ft).
z inspect the shift pads for wear or cracking.
z inspect the shift forks for wear or damage.
z check the synchronizer rings (of the affected gear[s])
for wear or damage.
z check the synchronizer hubs (of the affected gear[s])
for wear or damage.
z inspect the clutching teeth of the affected gear.
z Are there any internal components worn or damaged? Yes
INSTALL new components
or REPAIR as necessary.
TEST the system for
normal operation.
No
ASSEMBLE and INSTALL
the transmission. TEST the
system for normal
operation.
Test Step Result / Action to Take
G1 TRANSMISSION NEUTRAL GEAR ROLLOVER TEST
z
Start the engine and let it idle with the transmission in
neutral and the clutch engaged (pedal up). If noise is
excessive, depress the clutch pedal to stop the
transmission input shaft from rotating.
z Does the noise stop when the clutch pedal is
depressed? Yes
INSPECT the clutch component
for damage. REFER to General
Procedures in this section.
No
GO to
G2 .
G2 CHECK THE PILOT BEARING
z
Inspect the pilot bearing for damage. Refer to Bearing .
z Is the pilot bearing OK? Yes
GO to
G3 .
No
INSTALL a new pilot bearing.
REFER to Section 308 - 01 .
G3 CHECK TORSION SPRINGS
z
Inspect the torsion springs for fatigue or breakage.
z Are there any signs of fatigue or breakage? Yes
INSTALL a new clutch disc.
REFER to
Section 308 - 01 .
TEST the system for normal
operation. Klj . 14 ba
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A/C Evaporator/Condenser Core—
On-Vehicle Leak Test
1. Discharge and recover the refrigerant. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section.
2. NOTE: DO NOT leak test an A/C evaporator core with the suction accumulator/drier (19C836)
attached to the core tubes.
Disconnect the suspect A/C evaporator core or A/C condenser core from the A/C system. For
additional information, refer to Section 412 - 03 .
3. Clean the spring lock couplings. For additional information, refer to Spring Lock Coupling in this
section.
4. Connect the appropriate test fittings from the A/C Test Fitting Set to the evaporator or condenser tube connections.
5. NOTE: The automatic shut- off valves on some gauge set hoses do not open when connected to
the test fittings. If available, use hoses without shut- off valves. If hoses with shut-off valves are
used, make sure the valve opens when attached to the test fittings or install an adapter which
will activate the valve. The test is not valid if the shut- off valve does not open.
Connect the red and blue hoses from the manifold gauge set to the test fittings on the A/C
evaporator core or A/C condenser core. Connect the yellow hose to a known good vacuum
pump.
6. Open both gauge set valves and start the vacuum pump. Allow the vacuum pump to operate for a minimum of 45 minutes after the gauge set low pressure gauge indicates 101 kPa (30 in- Hg).
The 45- minute evacuation is necessary to remove any refrigerant from oil left in the A/C
evaporator core or A/C condenser core. If the refrigerant is not completely removed from the oil,
outgassing will degrade the vacuum and appear as a refrigerant leak.
7. If the low pressure gauge reading will not drop to 101 kPa (30 in- Hg) when the valves on the
gauge and manifold set are open and the vacuum pump is operating, close the gauge set
valves and observe the low pressure gauge. If the pressure rises rapidly to zero, a large leak is
indicated. Recheck the test fitting connections and gauge set connections before installing a
new A/C evaporator core or A/C condenser core.
8. After evacuating for 45 minutes, close the gauge set valves and stop the vacuum pump. Observe the low pressure gauge; it should remain at the 101 kPa (30 in- Hg) mark.
z If the low pressure gauge reading rises 34 or more kPa (10 or more in- Hg) of vacuum
from the 101 kPa (30 in- Hg) position in 10 minutes, a leak is indicated.
z If a very small leak is suspected, wait 30 minutes and observe the vacuum gauge.
z If a small amount of vacuum is lost, operate the vacuum pump with gauge valves open
for an additional 30 minutes to remove any remaining refrigerant from the oil in the A/C Klj . 39 ba
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6. Correctly oil match the system. For additional information, refer to
Refrigerant Oil Adding in this
section.
7. Evacuate and charge the system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section.
8. Check all refrigerant system hoses, lines and the position of the newly installed filters to be sure they do not interfere with other engine compartment components. If necessary, use tie straps to
make adjustments.
9. Provide adequate airflow to the front of the vehicle (with a fan, if necessary). Select MAX A/C operation and set the blower motor speed to maximum. Start the engine and let it idle briefly.
Make sure the A/C system is operating correctly.
10. Gradually bring the engine up to 1,200 rpm by running it at lower rpms for short periods (first at 800 rpm, then at 1,000 rpm). Set the engine at 1,200 rpm and run it for one hour with the A/C
system operating.
11. Stop the engine.
12. Recover the refrigerant from the system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section.
13. Remove the fittings, flexible hoses and pancake filter from between the and the condenser to evaporator tube.
14. Discard the pancake filter. It can be used one time only.
15. Reconnect the condenser to evaporator tube to the A/C condenser core.
16. Evacuate and charge the system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section. Klj . 2 ba
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Odometer
Display Description
GAGE Activates gauge sweep of all gauges, then displays present gauge values. Also
carries out the checksum tests on ROM and EE. All segments
illuminated Illuminates all odometer segments.
bulb Illuminates all micro-controlled indicators and LEDs. Install a new indicator or LED as
necessary. r Returns to normal operation of all micro-
controlled indicators and LEDs and displays
hexadecimal value for ROM level (used when requesting assistance from the hotline). EE Displays hexadecimal value for EE level (used when requesting assistance from the
hotline). dt Displays hexadecimal coding of final manufacturing test date (used when requesting
assistance from the hotline). dtc Displays continuous DTCs in hexadecimal format. Pressing the SELECT/RESET
button will display any DTCs stored before proceeding to the next step. enG Displays the English speed in mph. Speedometer will indicate present speed within
tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if speed is 0. m Displays the metric speed data (km/h). Speedometer will indicate present speed
within tolerances. Display will show 0 if input is not received, if input received is invalid for one second or more, or if speed is 0. tAc Displays the tachometer data received from the PCM via the SCP network within
tolerances. Tachometer will indicate present rpm. Display will show 0 if input is not received, if input received is invalid for one second or more, or if engine rpm is 0. FUEL Displays the code (0-255) for the fuel sender input to the instrument cluster. The fuel
gauge will display a filtered fuel level value. This filter will keep the pointer from moving suddenly or erratically.
z255 = open send +/- 0
z 232 = full stop +/- 0
z 215 = full mark +/- 10
z 178 = 3/4 mark +/- 8
z 138 = 1/2 mark +/- 7
z 93 = 1/4 mark +/- 5
z 41 = E mark +/- 4
z 54=LOW FUEL (0- 59)
z 0-18=short (0- 20 max) OIL Displays the code (0-
250) for the oil pressure switch input to the instrument cluster.
Oil pressure gauge will indicate present oil pressure. Normal oil pressure (greater
than 6 psi) will display a value between 000 and 176. A low oil pressure or an
inoperative engine oil pressure switch (less than 6 psi) will display a value greater
than 176. dEGC Display of engine temperature in degrees C input from cylinder head temperature
sensor.
z 49 C = "C" mark
z 60 C = normal band start
z 120 C = normal band end
z -40 C = no SCP message for 5 seconds bAtt Displays the code (0-255) for the battery voltage input to the instrument cluster.
Battery voltage gauge will indicate present battery voltage. Klj . 6 ba
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