2003 FORD MUSTANG Workshop Manual

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Page 2393 of 4378

FORD MUSTANG 2003 Workshop Manual Shift Concerns: Feel —
Harsh Possible Component Reference/Action
214 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs,
vehicle wiring harnesses,
PCM, EPC solenoid

Shift Concerns: Feel —
Harsh Possible Component Reference/Action
214 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs,
vehicle wiring harnesses,
PCM, EPC solenoid, OSS ·
Carry out Self- Test. Refer to the Powertrain Control/Emissions
Diagnosis (PC/ED) manual for diagnosis and testing of the
Powertrain Control System. Go To Pinpoint Test D or
Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and
repeat Self- Test. ·
Engine driveability concerns ·
Refer to Routine 253. 314 —
HYDRAULIC/MECHANICAL ROUTINE Fluid
·
Incorrect level ·
Adjust fluid to correct level. ·
Condition ·
Inspect condition of fluid. Incorrect Pressures
·
High line pressure, high EPC
pressure ·
Check pressures at line and EPC taps. See the to Line Pressure
Chart for specifications. If pressures are high or all shifts are
harsh, go to Main Controls. If pressures are OK and a specific
shift is harsh, refer to the following shift routine(s) for further
diagnosis:
„ Shift 1- 2, Routine 320
„ Shift 2- 3, Routine 321
„ Shift 3- 4, Routine 322
„ Shift 4- 3, Routine 323
„ Shift 3- 2, Routine 324
„ Shift 2- 1, Routine 325 Main Controls
·
Main regulator valve,
overdrive servo regulator
valve stuck, damaged or
assembled incorrectly ·
Inspect for damage. Repair as required. ·
EPC solenoid stuck or
damaged ·
Inspect for damage or contamination. Carry out EPC tests in
Routine 214. Repair as required.
Shift Concerns: No 1st Gear, Engages In Higher Gear Possible Component Reference/Action
215 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs, vehicle
wiring harnesses, PCM, shift
solenoids, digital transmission
range TR sensor ·
Carry out Self- Test. Refer to the Powertrain
Control/Emissions Diagnosis (PC/ED) manual for diagnosis
and testing of the Powertrain Control System. Go To Pinpoint Test A or
Go To Pinpoint Test C . Repair as
required. Clear DTCs, road test and repeat Self- Test. 315 —
HYDRAULIC/MECHANICAL ROUTINE Shift Linkage, Digital TR Sensor
·
Damaged or incorrectly adjusted ·
Inspect and repair as required. Verify transmission shift cable
adjustment. Refer to Section 307 - 05 . Adjust transmission
shift cable as necessary. After repairing transmission shift
cable, verify that the digital TR sensor is correctly adjusted. Klj . 14 ba
312003 Mustang Workshop Manual
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Page 2394 of 4378

FORD MUSTANG 2003 Workshop Manual X = pressure applied Adjust the digital TR sensor as necessary.
Incorrect Pressures
·
Low reverse clutch pressure,
low reverse band pressure, low
line pressure
�z Forward Off, Intermediate
Of

X = pressure applied Adjust the digital TR sensor as necessary.
Incorrect Pressures
·
Low reverse clutch pressure,
low reverse band pressure, low
line pressure
z Forward Off, Intermediate
Off, Direct X
z Forward Off, Intermediate
X, Direct Off
z Forward Off, Intermediate
X, Direct X
z Forward X, Intermediate
Off, Direct X
z Forward X, Intermediate X,
Direct Off
z Forward X, Intermediate X,
Direct X
z Forward X, Intermediate
Off, Direct Off ·
Check for which pressures are on and refer to Band/Clutch
Application Chart 601 and corresponding routines.
„ 324, 301
„ 325, 301
„ 323, 324, 325, 301
„ 324
„ 325
„ 323, 324, 325
„ Refer to appropriate mechanical diagnosis. Mechanical
·
Bands, clutches or seals
damaged or worn ·
Refer to Transmission Disassembly and Assembly.
Shift Concerns: No Manual 1st Gear Possible Component Reference/Action
216 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs,
vehicle wiring harnesses, PCM,
shift solenoids, digital TR
sensor ·
Carry out Self- Test. Refer to the Powertrain
Control/Emissions Diagnosis (PC/ED) manual for diagnosis
and testing of the Powertrain Control System. Go To Pinpoint Test A or
Go To Pinpoint Test C . Repair as required. Clear
DTCs, road test and repeat Self- Test. 316 —
HYDRAULIC/MECHANICAL ROUTINE Shift Linkage, Cable, Digital TR
Sensor
·
Damaged or incorrectly
adjusted ·
Inspect and repair as required. Verify transmission shift cable
adjustment; refer to Section 307 - 05 . Adjust transmission shift
cable as necessary. After repairing transmission shift cable,
verify that the digital TR sensor is correctly adjusted. Adjust
the digital TR sensor as necessary. Incorrect Pressures
·
Low reverse clutch pressure,
low reverse band pressure, low
line pressure, low EPC
pressure ·
Check pressure at line and EPC pressure taps; refer to Line
Pressure Chart for specifications. If pressures are low, check
the following components: oil filter and seal assembly, main
controls, reverse clutch assembly and reverse servo
assembly. Fluid Filter and Seal Assembly
·
Plugged or damaged ·
Install a new filter and seal assembly. Klj . 15 ba
312003 Mustang Workshop Manual
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Page 2395 of 4378

FORD MUSTANG 2003 Workshop Manual Main Controls
·
No. 6 shuttle ball, manual
valve, main regulator valve, low
servo modulator valve stuck,
damaged or assembled
incorrectly ·
Inspect for damage. Repair as required. ·
Bolts

Main Controls
·
No. 6 shuttle ball, manual
valve, main regulator valve, low
servo modulator valve stuck,
damaged or assembled
incorrectly ·
Inspect for damage. Repair as required. ·
Bolts not tightened to
specifications ·
Tighten bolts to specifications. ·
Gaskets damaged ·
Inspect for damage and install a new gasket. Low Reverse Servo
·
Seals (piston and cover)
damaged ·
Inspect for damage. Repair as required. ·
Servo cover retaining ring assembled incorrectly. ·
Anchor pins (case) damaged.
Shift Concerns: No Manual 2nd Gear Possible Component Reference/Action
217 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs,
vehicle wiring harnesses,
PCM, shift solenoids, digital
TR sensor ·
Carry out Self- Test. Refer to the Powertrain Control/Emissions
Diagnosis (PC/ED) manual for diagnosis and testing of the
Powertrain Control System. Go To Pinpoint Test A or
Go To Pinpoint Test C . Repair as required. Clear DTCs, road test
and repeat Self- Test. 317 —
HYDRAULIC/MECHANICAL ROUTINE Shift Linkage, Cable, Digital TR
Sensor
·
Damaged or incorrectly
adjusted ·
Inspect and repair as required. Verify transmission shift cable
adjustment; refer to Section 307 - 05 . Adjust transmission shift
cable as necessary. After repairing transmission shift cable,
verify that the digital TR sensor is correctly adjusted. Adjust the
digital TR sensor as necessary. Main Controls
·
3- 4 shift valve, 1- 2 and 2-3
shift valve, 3- 4 capacity
modulator valve stuck,
damaged or assembled
incorrectly ·
Inspect for damage. Repair as required. ·
Bolts not tightened to
specifications ·
Tighten bolts to specifications. ·
Gaskets damaged ·
Inspect for damage and install a new gasket.
Shift Concerns: 1-2 Shift (Automatic) Possible Component Reference/Action
220 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs, ·
Carry out Self- Test. Refer to the Powertrain Control/Emissions Klj . 16 ba
312003 Mustang Workshop Manual
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Page 2396 of 4378

FORD MUSTANG 2003 Workshop Manual vehicle wiring harnesses,
PCM, shift solenoids,
OSS Diagnosis (PC/ED) manual for diagnosis and testing of the
Powertrain Control System. Go To Pinpoint Test A or
Go To Pinpoint Test E . Repai

vehicle wiring harnesses,
PCM, shift solenoids,
OSS Diagnosis (PC/ED) manual for diagnosis and testing of the
Powertrain Control System. Go To Pinpoint Test A or
Go To Pinpoint Test E . Repair as required. Clear DTCs, road test and
repeat Self- Test. ·
Poor engine performance ·
Refer to Routine 253. 320 —
HYDRAULIC/MECHANICAL ROUTINE Shift Linkage, Digital TR
Sensor
·
Damaged or incorrectly
adjusted ·
Inspect and repair as required. Verify transmission shift cable
adjustment; refer to Section 307 - 05 . Adjust transmission shift cable
as necessary. After repairing transmission shift cable, verify that the
digital TR sensor is correctly adjusted. Adjust the digital TR sensor
as necessary. Incorrect Pressures
·
Intermediate clutch
pressure, line pressure ·
Check pressure at line and intermediate clutch taps; see the line
pressure chart for specifications. If not OK, check the main controls. Main Controls
·
1- 2 shift valve, stuck or
damaged ·
Inspect for damage. Repair as required. ·
Bolts not tightened to
specifications ·
Tighten bolts to specification. ·
Shift solenoid SSA
malfunction ·
Activate solenoid using scan tool. If solenoid operation cannot be
felt when placing hand on solenoid, install a new solenoid. Inspect
O- rings for damage. Repair as required. ·
Gasket damaged ·
Inspect for damage and install a new gasket. ·
No. 8 ball not seating ·
Inspect for damage. Repair as required. Case
·
1- 2 accumulator stuck or
damaged ·
Inspect for damage. Repair as required. Pump
·
Porosity/cross leaks,
balls missing, damaged
or leaking ·
Inspect for porosity/leaks, balls missing. Install a new pump as
required. ·
Gasket damaged ·
Inspect for damage and install a new gasket. Intermediate Clutch
Assembly
·
Seals damaged ·
Inspect for damage. Repair as required. ·
Piston damaged ·
Inspect for damage. Repair as required. ·
Friction elements
damaged or worn ·
Inspect for damage. Repair as required. Intermediate One-
Way
Clutch Assembly ·
Not holding or damaged ·
Inspect for damage. Repair as required. Planetary One-
Way Clutch
Assembly ·
Not overrunning or
damaged ·
Inspect for damage. Repair as required. 1-
2 Accumulator ·
Damaged accumulator ·
Inspect for damage. Repair as required. Klj . 17 ba
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Page 2397 of 4378

FORD MUSTANG 2003 Workshop Manual piston
·
Springs damaged or
broken ·
Inspect for damage. Repair as required. ·
Case bore scored ·
Inspect for damage. Repair as required.
Shift Concerns: 2-3 Shift (Automatic) Possible

piston
·
Springs damaged or
broken ·
Inspect for damage. Repair as required. ·
Case bore scored ·
Inspect for damage. Repair as required.
Shift Concerns: 2-3 Shift (Automatic) Possible Component Reference/Action
221 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs,
vehicle wiring harnesses,
PCM, shift solenoids, OSS ·
Carry out Self-Test. Refer to the Powertrain Control/Emissions
Diagnosis (PC/ED) manual for diagnosis and testing of the
Powertrain Control System. Go To Pinpoint Test A or
Go To Pinpoint Test E . Repair as required. Clear DTCs, road test
and repeat Self- Test. ·
Engine driveability concerns ·
Refer to Routine 253. 321 —
HYDRAULIC/MECHANICAL ROUTINE Shift Linkage
·
Damaged or incorrectly
adjusted ·
Inspect and repair as required. Verify transmission shift cable
adjustment. Refer to Section 307 - 05 . Adjust transmission shift
cable as necessary. After repairing transmission shift cable,
verify that the digital TR sensor is correctly adjusted. Adjust the
digital TR sensor as necessary. Incorrect Pressures
·
Direct clutch pressure ·
Check pressure at direct clutch tap; refer to Line Pressure
Chart for specifications. If not OK, check the main controls. Main Controls
·
2- 3 shift valve, check ball No.
9 or No. 3, solenoid pressure
regulator valve, damaged or
assembled incorrectly ·
Inspect for damage. Repair as required. ·
Bolts not tightened to
specifications ·
Tighten bolts to specifications. ·
Shift solenoid SSB
malfunction ·
Activate solenoid using scan tool. If solenoid operation cannot
be felt when placing hand on solenoid, install a new solenoid.
Inspect O- rings for damage. Repair as required. ·
Gaskets damaged ·
Inspect for damage and install a new gasket. ·
Output shaft seals damaged
or cup plug leaking or missing ·
Inspect for damage and repair as required. ·
2- 3 accumulator damaged or
stuck ·
Inspect piston seal and bore for damage. Repair as required. ·
Solenoid screen (in main
control) blocked or damaged ·
Clean or install a new screen. Intermediate One-
Way Clutch
Assembly ·
Not overrunning or damaged ·
Inspect for damage. Repair as required. Output Shaft
·
Seal rings damaged ·
Inspect for damage. Repair as required. ·
Cup plug damaged or missing Klj . 18 ba
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Page 2398 of 4378

FORD MUSTANG 2003 Workshop Manual Direct Clutch Assembly
·
Seals or piston damaged ·
Inspect for damage. Repair as required. ·
Friction elements worn or
damaged ·
Inspect for damage. Repair as required. ·
Check ball no

Direct Clutch Assembly
·
Seals or piston damaged ·
Inspect for damage. Repair as required. ·
Friction elements worn or
damaged ·
Inspect for damage. Repair as required. ·
Check ball not seating ·
Inspect for damage. Repair as required. ·
Return spring assembly
damaged ·
Inspect for damage. Repair as required. Case
·
Output shaft rear seals
leaking or damaged ·
Inspect for damage. Repair as required. Inspect case for
damaged seal area. If damaged, install a new case. 2-
3 Accumulator ·
Damaged accumulator piston ·
Inspect for damage. Repair as required. ·
Springs damaged or broken ·
Inspect for damage. Repair as required. ·
Case bore scored ·
Inspect for damage. Repair as required.
Shift Concerns: 3-4 Shift (Automatic) Possible Component Reference/Action
222 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs, vehicle
wiring harnesses, PCM, shift
solenoids, OSS, transmission
control switch (TCS) ·
Carry out Self- Test. Refer to the Powertrain
Control/Emissions Diagnosis (PC/ED) manual for
diagnosis and testing of the Powertrain Control System.
Go To Pinpoint Test A or
Go To Pinpoint Test E . Repair
as required. Clear DTCs, road test and repeat Self- Test. ·
Engine driveability concerns ·
Refer to Routine 253. 322 —
HYDRAULIC/MECHANICAL ROUTINE Shift Linkage, Digital TR Sensor
·
Damaged or incorrectly adjusted ·
Inspect and repair as required. Verify transmission shift
cable adjustment; refer to Section 307 - 05 . Adjust
transmission shift cable as necessary. After repairing
transmission shift cable, verify that the digital TR sensor
is correctly adjusted. Adjust the digital TR sensor as
necessary. Incorrect Pressures
·
Forward clutch pressure, direct
clutch pressure, line pressure ·
Check line, direct and forward clutch pressures at
appropriate taps; refer to Line Pressure Chart for
specifications. If pressures are out of specification, check
main controls. Main Controls
·
3- 4 shift valve, solenoid pressure
regulator valve, OD servo regulator,
3- 4 capacity modulator valve, 1- 2
and 2- 3 shift valves stuck, damaged
or assembled incorrectly ·
Inspect for damage. Repair as required. ·
Bolts not tightened to specifications ·
Tighten bolts to specifications. ·
SSA or SSB malfunction ·
Activate solenoid using scan tool. If solenoid operation
cannot be felt when placing hand on solenoid, install a
new solenoid. Inspect O- rings for damage. Repair as Klj . 19 ba
312003 Mustang Workshop Manual
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Page 2399 of 4378

FORD MUSTANG 2003 Workshop Manual required.
·
Gaskets damaged ·
Inspect for damage and install a new gasket. ·
OD servo rod and piston cushion
spring or seals damaged ·
Inspect for damage. Repair as required. ·
Worn or

required.
·
Gaskets damaged ·
Inspect for damage and install a new gasket. ·
OD servo rod and piston cushion
spring or seals damaged ·
Inspect for damage. Repair as required. ·
Worn or damaged OD servo anchor
pins ·
Inspect for damage. Repair as required. ·
No. 2, No. 4, No. 7 and No. 9 check
balls damaged or missing ·
Inspect for damage. Repair as required. ·
Solenoid screen blocked or
damaged ·
Clean or install a new screen. Pump
·
Porosity/cross leaks, balls missing,
damaged or leaking ·
Inspect for porosity/leaks, balls missing. Install a new
pump as required. ·
Gaskets damaged ·
Inspect for damage. Install new gaskets as required. OD Band
·
OD band and reverse clutch drum
assembly damaged, worn or
assembled incorrectly ·
Inspect for damage. Repair as required. ·
Intermediate one- way clutch
assembly damaged ·
Inspect for damage. Repair as required. Forward Clutch Assembly
·
Seals or piston damaged ·
Inspect for damage. Repair as required. ·
Friction elements worn or damaged ·
Inspect for damage. Repair as required. ·
Check ball stuck, damaged or not
seating correctly ·
Inspect for damage. Repair as required. Input Shaft
·
Seals damaged ·
Inspect for damage. Repair as required.
Shift Concerns: 4-3 Shift (Automatic) Possible Component Reference/Action
223 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs, vehicle wiring
harnesses, PCM, shift solenoids,
transmission control switch (TCS) ·
Carry out Self- Test. Refer to the Powertrain
Control/Emissions Diagnosis (PC/ED) manual for
diagnosis and testing of the Powertrain Control
System. Go To Pinpoint Test A . Repair as required.
Clear DTCs, road test and repeat Self- Test. 323 —
HYDRAULIC/MECHANICAL ROUTINE Incorrect Pressures
·
Forward clutch pressure, line pressure ·
Check line and forward clutch at pressure taps; refer to
Line Pressure Chart for specifications. If out of
specification, check the main controls. Main Controls
·
3- 4 shift valve, solenoid pressure
regulator valve, OD servo regulator, 3-
4 capacity modulator, 1- 2 and 2-3 shift
valves stuck, damaged or assembled ·
Inspect for damage. Repair as required. Klj . 20 ba
312003 Mustang Workshop Manual
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Page 2400 of 4378

FORD MUSTANG 2003 Workshop Manual incorrectly
·
Check balls No. 2, No. 7, No. 9
damaged, missing or not seating
correctly ·
Inspect for damage. Repair as required. ·
Bolts not tightened to specifications ·
Tighten bolts

incorrectly
·
Check balls No. 2, No. 7, No. 9
damaged, missing or not seating
correctly ·
Inspect for damage. Repair as required. ·
Bolts not tightened to specifications ·
Tighten bolts to specification. ·
SSA malfunction ·
Activate solenoid using scan tool. If solenoid operation
cannot be felt when placing hand on solenoid, install a
new solenoid. Inspect O- rings for damage. Repair as
required. ·
Gaskets damaged ·
Inspect for damage and install a new gasket. ·
OD servo, seal, rod damaged ·
Inspect for damage. Repair as required. ·
Solenoid screen blocked or damaged ·
Clean or install a new screen. Pump
·
Porosity/cross leaks, balls missing,
damaged or leaking ·
Inspect for porosity/leaks, balls missing. Install a new
pump as required. ·
Seal rings damaged ·
Inspect for damage. Repair as required. ·
Gaskets damaged ·
Inspect for damage and install a new gasket. Overdrive Band
·
OD band and reverse clutch assembly
damaged, worn or assembled
incorrectly ·
Inspect for damage. Repair as required. ·
Intermediate one- way clutch assembly
damaged ·
Inspect for damage. Repair as required. Forward Clutch Assembly
·
Seals or piston damaged ·
Inspect for damage. Repair as required. ·
Friction elements damaged, worn ·
Inspect for damage. Repair as required. ·
Check ball stuck, damaged or not
seating correctly ·
Inspect for damage. Repair as required. ·
Forward clutch piston and return
spring damaged ·
Inspect for damage. Repair as required. Input Shaft
·
Seals damaged ·
Inspect for damage. Repair as required.
Shift Concerns: 3-2 Shift (Automatic) Possible Component Reference/Action
224 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs,
vehicle wiring harnesses,
PCM, shift solenoids ·
Carry out Self- Test. Refer to the Powertrain Control/Emissions
Diagnosis (PC/ED) manual for diagnosis and testing of the
Powertrain Control System. Go To Pinpoint Test A . Repair as
required. Clear DTCs, road test and repeat Self- Test. 324 —
HYDRAULIC/MECHANICAL ROUTINE Incorrect Pressures
·
Direct clutch ·
Check pressure at direct clutch tap; refer to Line Pressure Chart for
specifications. If not within specification, check the main controls. Main Controls Klj . 21 ba
312003 Mustang Workshop Manual
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