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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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3.
CAUTION: If installing a new filter, and the seal remains in the main control bore,
carefully use a small screwdriver to remove the seal. Use care not to damage the main
control bore.
NOTE: If transmission is being repaired for a contamination- related failure, use a new filter and
seal. The filter may be reused if no excessive contamination is present.
Install a new fluid filter and seal as required.
4. Position the pan magnet into the transmission fluid pan.
5. NOTE: The transmission fluid pan gasket is reusable. Clean and inspect for damage; if not
damaged, the gasket should be reused.
Install the transmission fluid pan and gasket. 1. Position the transmission fluid pan and gasket.
2. Install the transmission fluid pan bolts. Klj . 4 ba
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IN-
VEHICLE REPAIR
Main Control Valve Body
Removal 1. Drain transmission fluid and remove the transmission fluid pan and filter. For additional information, refer to Fluid Pan, Gasket and Filter .
2. CAUTION: Do not pull on the molded lead frame. This may cause damage to the
connector ends. Carefully pry up on the locking tabs to disconnect the solenoids.
Disconnect the molded lead frame from the solenoids.
Disconnect the molded lead frame from the solenoids. 1. Disconnect the shift solenoid SSA and SSB.
2. Disconnect the torque converter clutch (TCC).
3. Disconnect the electronic pressure control (EPC) solenoid.
4. Disconnect the bulkhead inter- connector.
3. Remove the manual control valve detent lever spring. 1. Remove the bolt.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Special Tool(s)
Gauge, Transmission Solenoid
Connectors
307-426 Klj . 1 ba
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IN-
VEHICLE REPAIR
Extension Housing Seal and Gasket
Removal 1. Drain the transmission fluid. For additional information, refer to Fluid Pan, Gasket and Filter in
this section.
2. NOTE: The output shaft and driveshaft are a balanced assembly.
Mark the driveshaft flange and the rear companion flange for correct alignment during
assembly.
3. Remove the four driveshaft bolts.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Special Tool(s)
Slide Hammer
100-
001 (T50T-100- A) Installer, Transmission
Extension Housing Fluid Seal
308-
002 (T61L-7657- A) Remover, Transmission Fluid
Seal
307-
048 (T74P-77248- A) Klj . 1 ba
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IN-
VEHICLE REPAIR
Manual Control Lever Shaft and Seal
Removal 1. Drain the transmission fluid and remove the fluid pan and filter. For additional information, refer to Fluid Pan, Gasket and Filter in this section.
2. Disconnect the digital transmission range (TR) sensor electrical connector.
3. Disconnect the transmission shift linkage.
4. Remove the digital TR sensor.
SECTION 307-
01: Automatic Transaxle/Transmission 2003 Mustang Workshop Manual Special Tool(s)
Installer, Shift Shaft Fluid Seal
307-
050 (T74P-77498- A) Alignment Gauge, TR Sensor
307-
351 (T97L-70010- A) Klj . 1 ba
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4.
NOTE: If the transmission fluid pan gasket is not damaged, it may be reused.
Remove the transmission fluid pan and transmission fluid pan gasket. 1. Remove the bolts.
2. Remove the transmission fluid pan and transmission fluid pan to case gasket.
5. Clean the transmission fluid pan and pan magnet.
6. CAUTION: If installing a new filter, and grommet remains in the main control bore,
carefully use a small screwdriver to remove the grommet. Use care not to damage the
main control bore.
NOTE: If transmission is being repaired for a contamination- related failure, use a new filter and
seal. The filter may be reused if no excessive contamination is present. Remove the fluid filter and grommet. Klj . 3 ba
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