2003 FORD MUSTANG check transmission fluid

170°F), check and adjust the transmission fluid level, and check for any leaks. If fluid is needed,
add fluid in increments of 0.24-
liter (0.5-pint) until the correct level is achieved (fluid should be in
the cross- hatched area of the fluid level indicator).
Draining
Vehicles without a torque converter drain plug 1. With the vehicle in NEUTRAL, position on a hoist. For additional information, refer to Section 100 - 02 .
2. Loosen the transmission fluid pan bolts and allow the fluid to drain.
3. After the fluid has drained, remove the transmission fluid pan.
4. Do not remove the fluid filter. It is not necessary to change the fluid filter during a normal maintenance fluid change.
5. Clean and inspect the transmission fluid pan, transmission fluid pan gasket and magnet.
6. Thoroughly flush the cooler tubes. For additional information, refer to Transmission Fluid Cooler — Backflushing and Cleaning in this section. Klj . 5 ba
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Refill
7. Position the magnet into the transmission fluid pan.
8. NOTE: The fluid pan gasket is reusable, clean and inspect for damage. If not damaged, the
gasket should be reused.
Install the fluid pan and gasket.
1. Position the fluid pan with the gasket in place.
2. Install the bolts.
9. CAUTION: The use of any other transmission fluid can result in the transmission
failing to operate in a normal manner or transmission failure.
Fill the transmission.
zAdd 4.7 liters (5 qts) of clean automatic transmission fluid to the transmission through the
fluid filler tube.
10. Start the engine. Move the transmission range selector lever through all the gear ranges, checking for engagements.
11. With the engine running and the transmission at normal operating temperature 66- 77°C (150-
170°F), check and adjust the transmission fluid level, and check for any leaks. If fluid is needed,
add fluid in increments of 0.24- liter (0.5-pint) until the correct level is achieved (fluid should be in
the cross- hatched area of the fluid level indicator). Klj . 6 ba
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IN-
VEHICLE REPAIR
Fluid Pan, Gasket and Filter
1. Normal maintenance requires periodic automatic transmission fluid changes. If a major repair, such as a clutch, band, bearing, etc., is required, the automatic transmission will also have to be
removed for repair. At this time, the torque converter, transmission cooler and tubes must be
thoroughly flushed to remove any dirt. The transmission fluid needs to be changed if evidence
of fluid contamination is found. When used under continuous or severe conditions, the
transmission and torque converter should be drained and refilled with fluid as specified.
2. CAUTION: Do not use any supplemental transmission fluid additives or cleaning
agents. The use of these products could cause internal transmission components to fail;
this will effect the operation of the transmission.
CAUTION: Use of a fluid other than specified could result in transmission failure.
Refer to the vehicle certification label affixed to the LH front door lock face panel or door pillar
for the transmission code.
3. When filling a dry transmission and torque converter, refer to General Specifications chart in this section for capacity. Check the fluid level.
Removal
1. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
2. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
3. Place a drain pan under the transmission fluid pan.
4. Drain transmission fluid. zLoosen the transmission fluid pan bolts and allow fluid to drain. After fluid is drained
remove the bolts.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Material
Item Specification
MERCON® V Automatic
Transmission Fluid
XT
-5-QM, XT -5-DM MERCON® V Klj . 1 ba
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REMOVAL
Transmission
CAUTION: Whenever a transmission has been disassembled to install new parts the
transmission fluid cooler tubes must be cleaned and backflushed. Use a suitable torque
converter/fluid cooler cleaner. If equipped a new oil- to-air cooler must also be installed.
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 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.
CAUTION: After transmission is removed for a major overhaul, it is important to
completely clean all transmission components, including torque converter, oil- to-air cooler if
equipped, cooler inlet tube, main control valve body, clutches and all coasting booster valve
shuttle balls after any transmission repair that generates contamination. These contaminants
are a major cause for recurring transmission concerns and must be removed from the system
before the transmission is returned to use.
The cleaning of foreign material from the direct clutch check ball is often omitted. This
omission can lead to repeat repair of the transmission.
If equipped a new oil- to-air cooler must be installed under the following conditions; for
installation refer to Section 307 - 02 .
z Evidence of transmission assembly or fluid contamination is found due to the following
transmission or converter failure modes:
„major metallic failure
„ multiple clutches or clutch plate failures
„ sufficient component wear which results in metallic contamination.
1. Place the transmission range selector lever in NEUTRAL.
2. Disconnect the battery ground cable. For additional information, refer to Section 414 - 01 .
3. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
4. Remove the dual converter Y pipe. For additional information, refer to Section 309 - 00 .
5. Disconnect the transmission harness electrical connector.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Special Tool(s)
Retainer, Torque Converter
307-
346 (T97T-7902- A) Klj . 1 ba
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12.
NOTE: Before assembly, soak the new clutch discs in clean automatic transmission fluid for 15
minutes.
Install the clutch pack assembly. 1. Install the pressure ring.
2. Install the clutch pack.
3. Install the pressure plate.
13. Install the clutch pack retaining ring.
14. Install the special tool on the forward clutch pack. zPush downward on the clutch pack.
z Release pressure and zero the dial indicator.
15. Using the special tool, check the clutch pack clearance. 1. Lift up on the clutch pack until it fully seats against the clutch pressure plate retainer.
2. Read the dial indicator.
„If the clearance is not within specifications, install the correct size retaining ring. Selective Retaining Ring
Specification Klj . 7 ba
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DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter
1. A new or remanufactured torque converter must be installed if one or more of the following statements is true:
zA torque converter malfunction has been determined based on complete diagnostic
procedures.
z Converter stud or studs, impeller hub or bushing are damaged.
z Discoloration (due to overheating).
z The torque converter is found to be out of specification when carrying out one of the
following torque converter checks:
„One- Way Clutch Check
„ End Play Check
„ Stator to Turbine Interference Check
„ Stator to Impeller Interference Check
„ Torque Converter Leak Check
z Evidence of transmission assembly or fluid contamination due to the following
transmission or converter failure modes:
„Major metallic failure.
„ Multiple clutches or clutch plate failures.
„ Sufficient component wear which results in metallic contamination.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Klj . 1 ba
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23.
NOTE: Before assembly, soak the new clutch discs in clean automatic transmission fluid for 15
minutes.
Install the intermediate clutch pack and selective steel plate.
24. Using the special tool, check the intermediate clutch clearance. 1. Position the special tool on the pump case mounting surface.
2. Maintaining downward pressure, use a depth micrometer to measure and verify intermediate clutch clearance is within specification.
If the intermediate clutch is not within specification, install a correct selective plate.
25. Install the intermediate anti- rattle clip, if equipped. Selective Steel Plates
Specification
1.80-
1.70 mm (0.071- 0.067 inch) 2.05-
1.95 mm (0.081- 0.077 inch) 2.31-
2.20 mm (0.091- 0.087 inch) 2.56-
2.46 mm (0.101- 0.097 inch) Klj . 9 ba
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23.
NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms
may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven
16 km (10 miles) or more until the vehicle relearns the strategy.
Connect the battery ground cable.
24. If required, fill the transmission with clean automatic transmission fluid.
25. Check the transmission for correct operation. Klj . 7 ba
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