W700714S437

2

1

2

Selector Lever Cable Bracket
Bolts

W500213S442

1

1

4

Park Manual Release Cable
Bolt (Without Electronic Shift)

LB5Z3B498-A

1

1

1

LIMZ4A015-B

1

1

1

Front Axle Pinion Stem Circlip
Front Axle Pinion Stem O-ring

L1MZ3B478-A

1

1

1

L1MZ-4421A

1

1

1

W719511S439

3 Pieces Required If Driveshaft Is
Disconnected At Only One End, 6
Pieces Required If Coupler Or Driveshaft
Alignment Bush Are Replaced

1 Or 2

4

W716375S900

8

2

5

W719431S439

RWD Requires 2 Pieces, AWD Requires
3 Pieces

1

4

W520214S440

1

1

2

W721083S439

4

1

4

W719413S439

2

1

4

W716979S439

2

1

4

W719699S442

2

1

4

L1MZ6L612-B

1

1

1

Left Catalytic Converter Gasket
(3.0L)

W719698S900

2

2

1

Catalytic Converter Studs
(3.0L)

W714265S442

4

1

4

Left And Right Catalytic
Converter Nuts (3.3L)

XL-5-A

As Needed

As Needed

Motorcraft® Multi-Purpose
Grease Spray

XT-12-QULV

As Needed

As Needed

Motorcraft® MERCON® ULV
Automatic Transmission Fluid

5L3Z19A506-A

As Needed

As Needed

Slip Yoke Grease (Grease Chassis Lubrication)

XG-11

As Needed

As Needed

Motorcraft® High Temperature
4x4 Front Axle and Wheel
Bearing Grease

XT-10-QLVC

As Needed

As Needed

Motorcraft® MERCON® LV
Automatic Transmission Fluid
(4WD) (All Markets Except
Canada)

CXT-10-LV6

As Needed

As Needed

Motorcraft® MERCON® LV
Automatic Transmission Fluid
(4WD) (Canada Only)

XG-1-E1

As Needed

As Needed

Motorcraft® Premium LongLife Grease

Front Driveshaft Boot Clamp
Front Driveshaft Boot

Driveshaft Flex Coupling Bolts

Transfer Case Bolts (4WD)
Transmission Mount Bolts
Transmission Mount Nut
Transmission Crossmember
Bolts
Middle Subframe Bolts
Rear Subframe Bolts
Catalytic Converter Nuts

Parts - Explorer/Aviator Transmission Removal And Installation - Parts To Inspect And Replace Only If
Necessary
Service Part
Number
5L7Z-7D285-A

Claim Quantity
Only If Necessary (2
Possible)

Package Order
Quantity
Only If Necessary (1
Possible)

Number in
Package
2

Description
Transmission Fluid Cooler Tube
Seals

5L7Z-7J324-A

Only If Necessary (2
Possible)

Only If Necessary (1
Possible)

2

W525585-S300

Only If Necessary (2
Possible)

Only If Necessary (2
Possible)

1

W718758-S300

Only If Necessary (2
Possible)

Only If Necessary (1
Possible)

4

W716963-S900

Only If Necessary (4
Possible)

Only If Necessary (1
Possible)

4

L1MZ-4650-A

Only If Necessary (1
Possible)

Only If Necessary (1
Possible)

1

L1MZ-4782-A

Only If Necessary (1
Possible)

Only If Necessary (1
Possible)

1

W717822-S439

Only If Necessary (2
Possible)

Only If Necessary (1
Possible)

4

L1MZ-3B498-F

Only If Necessary (1
Possible)

Only If Necessary (1
Possible)

1

Fluid Cooler Tube Backing
Rings
Engine Block Dowel Pins (3.0L)
Engine Block Dowel Pins (3.3L)
Left And Right Catalytic
Converter Studs (3.3L)
Driveshaft Alignment Bushing
Flex Coupling
Driveshaft Center Bearing Bolts
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
Description

Operation
No.

Time

Various Vehicles: Retrieve and Record DTCs (Can Be Claimed With Operation B-M)

252302A

0.2 Hrs.

Various Vehicles: Reprogram The Transmission Strategy Download Into The PCM
(Can Be Claimed With Operation A-M)

252302B

0.2 Hrs.

2021-2022 F-150 3.5L PowerBoost: Perform Software Update On Appropriate
Modules Following TSB Procedure (Can Be Claimed With A, B, D, E, G, H And J)

AP252302C

Actual Time
Up To 0.5 Hrs.

Various Vehicles: Perform The Transmission Accelerated Main Control Break In
Routine On The Appropriate Clutch(s) (Can Be Claimed With Operation A-M)

252302D

1.2 Hrs.

Various Vehicles: Perform Adaptive Learning Drive Cycle (Can Be Claimed With
Operation A-M)

252302E

0.6 Hrs.

MT252302F

Actual Time
Up To 4.0 Hrs.

2020-2023 Explorer/Aviator Hybrid: Overhaul The Main control Valve Body, Perform
Adaptive Learning Drive Cycle And Road Test (Can Be Claimed With A, B, D, E And
K, L, Or M)

2021-2023 F-150 3.5L PowerBoost: Overhaul The Main control Valve Body, Perform MT252302G
Actual Time
Adaptive Learning Drive Cycle And Road Test (Can Be Claimed With A, B, C, D, E
Up To 6.2 Hrs.
And H Or J)
2021-2023 F-150 4X2 3.5L PowerBoost: Replace CDF Includes Remove And Install MT252302H
Transmission, Perform Adaptive Drive Cycle And Road Test (Can Be Claimed With
A-E And G)

Actual Time
Up To 9.4 Hrs.

2021-2023 F-150 4X4 3.5L PowerBoost: Replace CDF Includes Remove And Install
Transmission, Perform Adaptive Drive Cycle And Road Test (Can Be Claimed With
A-E And G)

MT252302J

Actual Time
Up To 11.0
Hrs.

2020-2023 Explorer RWD 3.3L Hybrid: Replace CDF Includes Remove And Install
Transmission, Perform Adaptive Drive Cycle And Road Test (Can Be Claimed With
A, B, D, E, And F)

MT252302K

Actual Time
Up To 9.9 Hrs.

2020-2023 Explorer 4WD 3.3L Hybrid: Replace CDF Includes Remove And Install
Transmission, Perform Adaptive Drive Cycle And Road Test (Can Be Claimed With
A, B, D, E, And F)

MT252302L

Actual Time
Up To 10.4
Hrs.

2020-2023 Aviator AWD 3.0L Hybrid: Replace CDF Includes Remove And Install
Transmission, Perform Adaptive Drive Cycle And Road Test (Can Be Claimed With
A, B, D, E, And F)

MT252302M

Actual Time
Up To 10.4
Hrs.

Repair/Claim Coding
Causal Part:

7H351

Condition Code: 42

Service Procedure
1. Using the latest software level of the FDRS scan tool, check for DTCs and record for a future step.
2. Is vehicle built on or before 1-Nov-2021?
(1). Yes - reprogram the transmission strategy download into the PCM. Refer to WSM, Section 307-01. Proceed to
Step 3.
(2). No - proceed to Step 3.
NOTE: When prompted, select Transmission Replacement (Full Assembly) only and re-enter the production
transmission serial information on the side of the transmission.
3. Is the vehicle a 2021-2022 F-150?
(1). Yes - reprogram the PCM using the latest version of the FDRS. Follow all on-screen instructions carefully to
complete all required coordinated module software update(s), including:
• ABS module
• SOBDMC
• BECM
(2). No – proceed to Step 4.
4. Are any of the following DTCs present? P0751, P0752, P0756, P0757, P0761, P0762, P0766, P0767, P0771,
P0772, P2700, P2701, P2702, P2703, P2704, P2705, P2707, P2708, P0729, P0731, P0732, P0733, P0734,
P0735, P0736, P076F, P07D9, P07F6 and/or P07F7.
(1). Yes - proceed to Sticking Valves - Main Control Valve Body, Step 2.
(2). No - perform the adaptive learning drive cycle. Refer to WSM, Section 307-01.
5. Does the vehicle still exhibit the condition after performing the adaptive learning drive?
(1). Yes - proceed to Sticking Valves - Main Control Valve Body, Step 1.
(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.

Sticking Valves - Main Control Valve Body
1. Determine the appropriate clutch(s) to be cycled related to the symptoms present. Refer to WSM, Section 307-01.
Proceed to Step 3.

2. Determine the appropriate clutch(s) to be cycled related to DTCs present. Refer to WSM, Section 307-01.
3. Clear all DTCs present before performing the "PCM - Transmission Accelerated Main Control Break In" routine.
CAUTION: Failure to use a frame engaging lift could damage the vehicle.
4. Prepare vehicle for the "PCM - Transmission Accelerated Main Control Break In" routine by positioning on a frameengaging lift with wheels off the ground to prevent vehicle movement.
5. Using the latest software level of the FDRS scan tool, perform the "PCM - Transmission Accelerated Main Control
Break In" routine 3 times on the appropriate clutch(s) determined to be cycled.
6. Perform the adaptive learning drive cycle. Refer to WSM, Section 307-01.
7. Does the vehicle still exhibit the condition after performing the "PCM - Transmission Accelerated Main Control
Break In" routine and adaptive learning drive cycle?
(1). Yes - proceed to Step 8.
(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.
8. Overhaul (clean and inspect) the main control valve body and road test vehicle following the adaptive learning
drive cycle. Refer to WSM, Section 307-01.
9. Does the vehicle still exhibit the condition after overhauling the main control valve body and performing an
adaptive learning drive cycle?
(1). Yes, vehicles built on or before 15-Aug-2022 - proceed to CDF Clutch Cylinder Replacement, Step 1.
(2). Yes, vehicles built on or after 16-Aug-2022 - this article is complete. Refer to WSM, Section 307-01 for normal
diagnostics.
(3). 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.

CDF Clutch Cylinder Replacement
For Mexico, U.S. and Canadian vehicles which are low time in service (LTIS) program eligible the dealer has the
option to continue with this TSB repair or replace the transmission under the LTIS program.
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 hybrid drive unit, 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. Refer to WSM,
Section 307-01.
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 30701.
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.