Only If Necessary (2 Possible) Only If Necessary (1 Possible)

2

Transmission Fluid Cooler Tube Seals

5L7Z-7J324-A

Only If Necessary (2 Possible) Only If Necessary (1 Possible)

2

Transmission Fluid Cooler Tube Backing Rings

W525585-S300

Only If Necessary (2 Possible) Only If Necessary (2 Possible)

1

Engine Block Dowel Pins (3.0L)

W718758-S300

Only If Necessary (2 Possible) Only If Necessary (1 Possible)

4

Engine Block Dowel Pins (3.3L)

W716963-S900

Only If Necessary (4 Possible) Only If Necessary (1 Possible)

4

Left And Right Catalytic Converter Studs (3.3L)

L1MZ-4650-A

Only If Necessary (1 Possible) Only If Necessary (1 Possible)

1

Driveshaft Alignment Bushing

L1MZ-4782-A

Only If Necessary (1 Possible) Only If Necessary (1 Possible)

1

Flex Coupling

W717822-S439

Only If Necessary (2 Possible) Only If Necessary (1 Possible)

4

Driveshaft Center Bearing Bracket Bolts

L1MZ-3B498-F

Only If Necessary (1 Possible) Only If Necessary (1 Possible)

1

Rear Axle Pinion Stem Circlip

Service part numbers and "number in package" quantity may change after publication, thus also affecting the "package order quantity". Refer to the parts catalog for the latest
information.
Claim Quantity refers to the total number of individual pieces required to repair the vehicle.
Package Order Quantity refers to the amount of the service part number package(s) required to repair the vehicle.
Number In Package refers to the number of individual pieces included in a service part number package.
As Needed indicates the part is necessary but amount of the part may vary and/or is not a whole number. Parts can be billed out as non-whole numbers, including less than 1.
Only If Necessary indicates the part is not mandatory. Refer to the Service Procedure to determine the inspection/inclusion criteria.
Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty (SPW)/Service Part New Vehicle (SPNV)/Extended Service Plan
(ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/SPW/SPNV/ESP coverage limits are determined by the identified causal part and verified using
the OASIS part coverage tool.
Labor Times
Operation
No.

Description
2021-2022 Mustang 2.3L/5.0L Coupe/Convertible: Run CDF Test (Pass) (Do Not Use With Any Other Labor Operations)
2021-2022 Mustang 5.0L Coupe: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 Mustang 5.0L Convertible: Run CDF test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 Mustang 2.3L Coupe: Run CDF test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 Mustang 2.3L Convertible: Run CDF test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2020-2022 Explorer 3.3L/3.0L: Run CDF Test (Pass) (Do Not Use With Any Other Labor Operations)

Time

252300A

0.7 Hrs.

252300B

11.3
Hrs.

252300C

12 Hrs.

252300D

10.4
Hrs.

252300E

11.0
Hrs.

252300F

0.8 Hrs.

252300G

12.4
Hrs.

252300H

11.3
Hrs.

2020-2023 Transit 3.5L TiVCT/3.5L EcoBoost: Run CDF Test (Pass) (Do Not Use With Any Other Labor Operations Outside Of This Article) (Can Be
Claimed With Operation P)

252300J

0.7 Hrs.

2020-2023 Transit RWD 3.5L TiVCT: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations Outside Of This
Article) (Can Be Claimed With Operation(s) P, Q Or R)

252300K

11.4
Hrs.

2020-2023 Transit RWD 3.5L EcoBoost: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations Outside Of This
Article) (Can Be Claimed With Operation(s) P, Q Or R)

252300L

11.4
Hrs.

2020-2023 Transit AWD 3.5L TiVCT: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations Outside Of This
Article) (Can Be Claimed With Operation(s) P, Q Or R)

252300M

14.2
Hrs.

2020-2023 Transit AWD 3.5L EcoBoost: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations Outside Of This
Article) (Can Be Claimed With Operation(s) P, Q Or R)

252300N

14.2
Hrs.

2020-2023 Transit AWD/RWD: Additional Time To Remove And Install Running Boards If Equipped (Can Be Claimed With Operations J-N)

252300P

0.3 Hrs.

2020-2023 Transit AWD/RWD: Additional Time To Check And Correct Front Toe (Can Be Claimed With Operations K-N)

252300Q

1.0 Hrs.

2020-2023 Transit AWD/RWD With Lane Departure Warning: Additional Time To Check And Correct Front Toe Includes Extra Time To Align LDW
Camera System (Can Be Claimed With Operations K-N)

252300R

1.4 Hrs.

2022 Expedition/Navigator 4X2/4X4: Run CDF Test (Pass) (Do Not Use With Any Other Labor Operations)

252300S

0.8 Hrs.

252300T

11.7
Hrs.

252300U

12.7
Hrs.

252300V

11.4
Hrs.

252300W

12.4
Hrs.

252300X

0.8 Hrs.

252300Y

12.3
Hrs.

252300Z

13.1
Hrs.

252300AA

11.7
Hrs.

252300BB

13.0
Hrs.

252300CC

12.9
Hrs.

252300DD

11.6
Hrs.

252300EE

12.0
Hrs.

252300FF

11.0
Hrs.

252300GG

0.9 Hrs.

2020-2022 Explorer 4WD 3.3L TiVCT: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2020-2022 Explorer 4WD 3.0L EcoBoost: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)

2022 Navigator 4X2: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2022 Navigator 4X4: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2022 Expedition 4X2: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2022 Expedition 4X4: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X2/4X4: Run CDF Test (Pass) (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X2 2.7L EcoBoost: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X4 2.7L EcoBoost: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X2 3.5L EcoBoost: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X4 3.5L EcoBoost: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X4 5.0L TiVCT: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X2 5.0L TiVCT: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X4 3.3L TiVCT: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150 4X2 3.3L TiVCT: Run CDF Test (Fail) Replace CDF Cylinder (Do Not Use With Any Other Labor Operations)
2021-2022 F-150, 2022 Expedition Navigator: Reprogram The PCM and Perform Adaptive Learning Drive Cycle Can Be Claimed With Or Without
Operations S-FF)
Repair/Claim Coding
Causal Part:

7H351

Condition Code: 42

Service Procedure
Example of performing the gauge connection on F-150

1. Is the vehicle a 2021-2022 F-150 or a 2022 Expedition/Navigator?
(1). Yes - using the latest software level of the FDRS scan tool, check for a later PCM software version.
(2). No - proceed to Step 5.
2. Is a later software version available?
(1). Yes - reprogram the PCM to the latest software. Proceed to Step 3.
(2). No - proceed to Step 5.
3. Perform the adaptive learning drive cycle. Refer to WSM, Section 307-01.
4. Does the vehicle still exhibit the condition after reprogramming the PCM to the latest software and performing the adaptive learning drive cycle?
(1). Yes - proceed to Step 5.
(2). No - repair is complete.
NOTE: Advise the customer that this vehicle is equipped with an adaptive transmission shift strategy which allows the vehicle's computer to learn the
transmission's unique parameters and improve shift quality. When the adaptive strategy is reset, the computer will begin a relearning process. This relearning
process may result in firmer than normal upshifts and downshifts for several days.
5. Is a VCMM PVT available?
(1). Yes - proceed to "Diagnostic Procedure A - VCMM PVT Is Available".
(2). No - proceed to "Diagnostic Procedure B - No VCMM PVT Available".

Diagnostic Procedure A - VCMM PVT Is Available
1. Install the VCMM PVT to the transmission line pressure port. (Figure 1)
Figure 1

NOTE: Some vehicle models may require the removal of the transmission park manual release cable and bracket to gain access to the line pressure port through
the transmission fluid heat exchanger access hole. Refer to the video link above and WSM, Section 307-01 > Transmission Line Pressure Test.
NOTE: The line pressure port is an M10X1.0 thread. Do not use a National Pipe Thread (NPT) fitting when installing pressure reading equipment. If an NPT fitting is
used, damage to the transmission case will occur.
NOTE: The transmission extension hose kit requires a 1/4 in. Joint Industry Council (JIC) male adapter.
NOTE: All NPT fittings must be assembled with polytetrafluoroethylene (PTFE) tape or paste to prevent leaks.
(1). For Explorer, F-150, Mustang, Expedition and Navigator vehicles:
• VCMM Transmission Extension Kit
• Locally obtain the necessary adapter fittings to connect the VCMM PVT to the transmission line pressure port (Figure 2)
Figure 2 - Explorer/F-150/Mustang/Expedition/Navigator

Item

Description

1

M10X1.0 male to 1/8 in. FNPT female

2

1/8 in. NPT male to 1/4 in. JIC male

3

Extension hose

(2). For Transit vehicles:
• VCMM Transmission Extension Kit
• Locally obtain the necessary adapter fittings to connect the VCMM PVT to the transmission line pressure port (Figure 3)
Figure 3 - Transit only

Item

Description

1

M10X1.0 male to 1/8 in. FNPT female (Adapter #1)

2

1/8 in. NPT male to 1/4 in. JIC male. (Adapter #2)

3

1.5 in. length extension: 1/8 in. NPT male to 1/8 in. NPT male nipple (Adapter #3)

4

90 degree elbow: 1/8 in. NPT male to 1/8 in. NPT female (Adapter #4)

5

1/8 in. NPT female to 1/8 in. NPT female (Adapter #5)

2. Using the latest software level of the FDRS and VCMM, start a session.
3. Select and run the FDRS Transmission Clutch Circuit Leak Test. Follow FDRS screen prompts and directions to proceed. Does the vehicle exhibit harsh/delayed engagement
and/or harsh/delayed shift symptoms only when TFT is at 49°C (121°F) or below?
(1). Yes - when prompted, choose the FDRS option for the transmission shift concern occurs when the TFT is at or below 49°C (121°F).
(2). No - when prompted, choose the FDRS option for the transmission shift concern occurs when the TFT is at or above 50°C (122°F).
4. Test is complete. Release control of all parameters then turn ignition off.
5. Did the transmission test results pass?
(1). Yes - this article does not apply. Refer to WSM, Section 307-01 for normal diagnostics.
(2). No - (field displays red) - proceed to "Repair Procedure" in this article.

Diagnostic Procedure B - No VCMM PVT Available
1. Install a suitable transmission fluid pressure gauge that measures at least 300 PSI (2,000 kPa) with vibration dampening to the line pressure port. (Figure 1) Refer to Table 1.
NOTE: Some vehicle models may require the removal of the transmission park manual release cable and bracket to gain access to the line pressure port through
the transmission fluid heat exchanger access hole. Refer to the video link above and WSM, Section 307-01 > Transmission Line Pressure Test.
NOTE: The line pressure port is an M10X1.0 thread. Do not use a National Pipe Thread (NPT) fitting when installing pressure reading equipment. If an NPT fitting is
used, damage to the transmission case will occur.
NOTE: All NPT fittings must be assembled with polytetrafluoroethylene (PTFE) tape or paste to prevent leaks.
Table 1 - Ford tested suitable transmission fluid pressure gauges, other suitable gauges may be used
Description
Ashcroft 0-300PSI Vibration Dampened

Source
Grainger

Lang Instruments Model 5TUL8 (requires piston-type pressure gauge snubber)

Part Number
351009SW02LXLL300

• Rotunda RTTP

• Gauge: STATU16A

• Grainger

• Snubber: 5TUL8

Snap-On 0-500PSI Gauge and Boot

Snap-On

EEPV5-500G

Waekon Digital Pressure Gauge

Rotunda RTTP

WAE48165

Pressure Pro PC 5000

Rotunda RTTP

300-WAE48365

2. Using the latest software level of the FDRS and VCMM, start a session.
3. Using FDRS select the following PIDs.
RPM_DSD #
PVT Pressure (set scale to +/- 3447 kPa)
TFT
SSA_AMP #
SSB_AMP #
SSC_AMP #
SSD_AMP #
SSE_AMP #
SSF_AMP #
4. Does the vehicle exhibit harsh/delayed engagement and/or harsh/delayed shift symptoms only when TFT is at 49°C (121°F) or below?
(1). Yes - perform Step 5 while TFT is at or below 49°C (121°F).
(2). No - perform Step 5 with TFT at or above 50°C (122°F).
5. Enter Live Display mode. Verify the vehicle is in P, emergency brake applied and TFT is at the appropriate temperature range identified in Step 4.
(1). For each step below, highlight the PID to enable it and select #. Then control the PID with up/down arrows.
(2). Command SSA_AMP # / SSB_AMP # / SSC_AMP # / SSD_AMP # / SSE_AMP # / SSF_AMP # to 0mA.
(3). Decrease RPM_DSD # between 500-600 rpm.
(4). Increase LINEDSD # to 1900-2000kPa (275-290 PSI) or maximum achievable pressure below 2000kPa (290 PSI).
NOTE: Actual line pressure reading is expected to be less than commanded line pressure.
(5). Record the pressure value observed on the gauge as Pre Ramp.
(6). Command SSA_AMP # to 1.0A (five quick up arrow clicks).
(7). Record the pressure value observed on the gauge as Applied A.
(8). Command SSA_AMP # to 0mA (five quick down arrow clicks).
(9). Command SSC_AMP # to 1.0A (five quick up arrow clicks).
(10). Record the pressure value observed on the gauge as Applied C.
(11). Command SSC_AMP # PID off to 0mA (five quick down arrow clicks).
(12). Test is complete. Release control of all parameters then turn the ignition off.
6. Download the CDF calculator tool.
NOTE: The calculator is an ".exe" file type. Make sure the computer firewall is set to allow this type of file to download.
(1). Click here to download the CDF calculator tool in English.
(2). Click here to download the CDF calculator tool in Spanish.
(3). Click here to download the CDF calculator tool in French.
7. Enter the value recorded as Pre Ramp into CDF calculator for both fields Pre Ramp Valley and Pre Ramp Peak.
8. Enter the value recorded as Applied A into CDF calculator for both fields Applied A Valley and Applied A Peak.
9. Enter the value recorded as Applied C into CDF calculator for both fields Applied C Valley and Applied C Peak.
10. Refer to CDF calculator results. Does the “A-clutch Leakage Rate %” field display green?
(1). Yes - proceed to Step 11.
(2). No (field displays red) - this article does not apply. Refer to WSM, Section 307-01 > Diagnosis and Testing > A Clutch.
11. Does the “C-Clutch vs A-Clutch %” field display green?
(1). Yes - this article does not apply. Refer to WSM, Section 307-01 for normal diagnostics.
(2). No (field displays red) - proceed to "Repair Procedure" in this article.

Repair Procedure
1. Remove the transmission and mount the transmission to the bench. Refer to WSM, Section 307-01.
2. Disassemble the transmission. Perform only the necessary steps to remove the clutch and planetary assembly from the transmission case. Refer to WSM, Section 307-01.
(1). It is only necessary to remove the torque converter, transmission fluid pan and gasket, transmission fluid auxiliary pump (if equipped), fluid filter and main control valve
body assembly, all 4 speed sensors (intermediate speed sensor A [ISSA], intermediate speed sensor B [ISSB], TSS and OSS), transmission fluid pump, front support
assembly and the clutch and planetary assembly. Refer to WSM, Section 307-01.

3. Disassemble the clutch and planetary assembly. Perform only the necessary steps to remove the clutch and planetary container cylinder, the CDF clutch cylinder and the No.
3 sun gear shaft and No. 2 ring gear assembly from the clutch and planetary assembly. Refer to WSM, Section 307-01.
(1). It is only necessary to remove the A clutch assembly, the selective shim and T3 thrust bearing, remove and discard the 5-input shaft front seals.
(2). Remove the No. 1 planetary carrier snap ring, clutch and planetary container cylinder, the No. 4 ring gear snap ring and the No. 4 ring gear from the clutch and planetary
container cylinder. Discard the clutch and planetary container cylinder. Refer to WSM, Section 307-01.
(3). Remove the E clutch and input shaft assembly, the No. 3 planetary carrier and No. 3 sun gear, the No. 3 sun gear shaft and No. 2 ring gear assembly. Refer to WSM,
Section 307-01.
4. Remove and discard the sun gear No. 3 shaft seals. Install the 4 new sun gear No. 3 shaft seals. Refer to WSM, Section 307-01.
5. Disassemble the C, D and F clutch assemblies from the CDF cylinder. Discard the CDF cylinder. Refer to WSM, Section 307-01.
6. Assemble the C, D and F clutch assemblies into the new CDF clutch cylinder. Refer to WSM, Section 307-01.
7. Perform the C, D and F clutch pack endplay measurements for proper clearance. Refer to WSM, Section 307-01.
8. Remove and discard the input shaft-to-sun gear No. 3 shaft seals. Install the 5 new input shaft-to-sun gear No. 3 shaft seals. Refer to WSM, Section 307-01.
9. Remove and discard the input shaft seal. Install the new input shaft seal. Refer to WSM, Section 307-01.
10. Install the 5 new input shaft front seals. Refer to WSM, Section 307-01.
11. Install the No. 4 ring gear and snap ring into a new clutch and planetary container cylinder.
12. To reassemble the clutch and planetary assembly, reverse the disassembly procedure. Refer to WSM, Section 307-01.
13. Perform the T3 thrust bearing measurement to set transmission front end clearance. Refer to WSM, Section 307-01.
14. Reassemble the transmission. Refer to WSM, Section 307-01.
15. Install the transmission. Refer to WSM, Section 307-01.
16. Perform an adaptive learning drive cycle. Refer to WSM, Section 307-01.
NOTE: Advise the customer that this vehicle is equipped with an adaptive transmission shift strategy which allows the vehicle's computer to learn the
transmission's unique parameters and improve shift quality. When the adaptive strategy is reset, the computer will begin a relearning process. This relearning
process may result in firmer than normal upshifts and downshifts for several days.

© 2025 Ford Motor Company
All rights reserved.
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of
conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described
affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended
Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supersede this
information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.