# Service bulletin SSM 47903

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10159501
- Published by NHTSA: 2019\-05\-07
- Manufacturer's number: SSM 47903
- Manufacturer's date: 2019\-04\-01
- NHTSA component: POWER TRAIN

## NHTSA's summary

SSM 47903 \- 2018\-2019 F\-150/F\-Super Duty/Transit \- Rear Axle Pinion Seal Fluid Leak/Seepage Some 2018\-2019 F\-150, F\-Super Duty, and Transit vehicles may exhibit the appearance of a fluid leak or seepage from the rear axle pinion seal. The appearance of a fluid leak or seepage on a vehicle with less than 500 miles or less than 3 months in service may not be due to a failed rear axle pinion seal. The appearance of fluid around the seal may be from the axle assembly being shipped to the vehicle assembly plant with the pinion facing down. To determine if a leak is present, clean the seal area of any residual lubricant and visually inspect the pinion seal for leaks or damage in the seal contact area or dust slinger on the pinion flange dust shield. If no concerns are found, run the vehicle on a hoist in DRIVE at idle speeds for 10 minutes to allow the fluid to circulate and recheck for signs of leakage.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10159501-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10159501-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2018 to 2019 FORD F\-150
- 2018 to 2019 FORD F\-250 SD
- 2018 to 2019 FORD F\-350 SD
- 2018 to 2019 FORD F\-450 SD
- 2018 to 2019 FORD F\-550 SD
- 2018 to 2019 FORD TRANSIT

## Recalls for the same vehicles and component

- [2026280](/recalls/tc/2026280.md), 2026-06-09: Powertrain
- [26V375000](/recalls/nhtsa/26V375000.md), 2026-06-09: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)
- [2022679](/recalls/tc/2022679.md), 2022-11-29: Powertrain
- [22V880000](/recalls/nhtsa/22V880000.md), 2022-11-29: POWER TRAIN:DRIVELINE:DRIVESHAFT
- [2022074](/recalls/tc/2022074.md), 2022-02-17: Powertrain
- [22V087000](/recalls/nhtsa/22V087000.md), 2022-02-16: STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; POWER TRAIN:DRIVELINE:DRIVESHAFT
- [2019500](/recalls/tc/2019500.md), 2019-10-01: Powertrain
- [19V103000](/recalls/nhtsa/19V103000.md), 2019-02-21: POWER TRAIN:DRIVELINE:DRIVESHAFT; POWER TRAIN:DRIVELINE:UNIVERSAL JOINT
- [18V802000](/recalls/nhtsa/18V802000.md), 2018-11-14: POWER TRAIN:AUTOMATIC TRANSMISSION
- [2018165](/recalls/tc/2018165.md), 2018-04-05: Powertrain

## Other bulletins for the same vehicles and component

- [25E10\-S1](/bulletins/11037788.md), 2026-10-02, Other: ELECTRICAL SYSTEM; UNKNOWN OR OTHER; POWER TRAIN. 25E10\-S1 Owner letter
- [SSM 55098](/bulletins/11036338.md), 2026-08-25, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN; ENGINE. Some 2013\-2016 Super Duty vehicles equipped with a 6.7L diesel engine and 2015\-2019 Transit vehicles equipped with a 3.2L diesel engine may not pass a state smog test due to the exhaust gas system \(EGS\) monitor that will not run after completing the exhaust gas sensor drive cycle located within Section 2 of the Powertrain Control/Emissions Diagnostics \(PC/ED\) Manual \> Drive Cycles. This may be due to the vehicles diesel oxidation catalyst \(DOC\) age counter being under the 120\-minute age requirement. There is an all\-new "PCM Catalytic Converter Age Evaluation" application within the latest version of the Ford Diagnosis and Repair System \(FDRS\). Use this new FDRS application to determine the age \(in minutes\) of the DOC. If the age is less than 120 minutes, perform manual regenerations to increase the catalyst age counter to satisfy the monitor age requirement. If further assistance is needed, contact the technical assistance center \(TAC\). Note: this article only applies to the EGS monitor. Problems with other vehicle monitors not running successfully must be addressed using normal diagnostics located i
- [25N10](/bulletins/11029724.md), 2026-03-05, Other: POWER TRAIN; UNKNOWN OR OTHER. Certain 2017\-2025 F\-450 – F\-600 Super Duty Chassis Cab Upfitted with an Aerial Bucket Frame Rail Crack
- [SSM 54592](/bulletins/11029081.md), 2026-02-27, Service bulletin: POWER TRAIN. For 20172026 vehicles equipped with a 10R transmission, a revision to the Road Testing Vehicle procedure has been made in the WSM, located in Section 307\-01 \> Diagnosis and Testing. This updated procedure improves the diagnosis of customer reported transmission concerns and aids in locating the proper root cause. During diagnosis and testing, details regarding whether the condition is more prevalent when the vehicle is hot or cold, throttle percentage at the time of occurrence, vehicle speed, the specific shift involved, and whether the issue occurs during transmission engagements \(N\>R, N\>D, R\>D, or D\>R\) should be noted. Engineering requests including these detailed operating conditions that will significantly assist with root cause analysis. Diagnosis, testing, and repair should use established labor times outside this article.
- [25E10](/bulletins/11027044.md), 2026-01-06, Emissions: POWER TRAIN. Certain 2018\-2020 Model Year F\-150 Vehicles Equipped With 3.3L Engines Powertrain Control Module \(PCM\) Reprogramming
- [SSM 54366](/bulletins/11025611.md), 2025-11-19, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Some 2015\-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes \(DTCs\) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Control and Emissions Diagnosis \(PC/ED\) or in Section 303\-14 of the Workshop Manual \(WSM\) has been updated to address this concern.
- [TSB 25\-2475](/bulletins/11024874.md), 2025-11-04, Service bulletin: POWER TRAIN. This bulletin supersedes TSB 25\-2301. Reason for update: update the Part List Description. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: \* Harsh engagement \* Delayed engagement \* Harsh shift \* Delayed shift \* Illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble codes \(DTC\) 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 stored in the powertrain control module \(PCM\) or transmission control module \(TCM\). This may be due to axial movement of the CDF clutch cylinder \(7H351\) sleeve causing hydraulic circuit leaks. NOTE: If internal transmission service is required to address a concern detected with the CDF clutch cylinder following this article, technicians should carefully inspect and replace other transmission components and flush transmission fluid cooler only as necessary as needed to ensure proper function. Add a new line to the repair order to document any additional
- [TSB 25\-2301](/bulletins/11021972.md), 2025-08-19, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. This bulletin supersedes TSB 25\-2126. Reason for update: update the Part List and Service Procedure. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: \* Harsh engagement \* Delayed engagement \* Harsh shift \* Delayed shift \* Illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble codes \(DTC\) 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 stored in the powertrain control module \(PCM\) or transmission control module \(TCM\). This may be due to axial movement of the CDF clutch cylinder \(7H351\) sleeve causing hydraulic circuit leaks. NOTE: If internal transmission service is required to address a concern detected with the CDF clutch cylinder following this article, technicians should carefully inspect and replace other transmission components and flush transmission fluid cooler only as necessary as needed to ensure proper function. Add a new line to the repair order to documen
- [24E12](/bulletins/11014884.md), 2025-03-04, Emissions: POWER TRAIN. NEW VEHICLE DELIVERY HOLD \- Emission Recall 24E12 Certain 2018\-2020 Model Year F\-150 Vehicles Equipped with a 2.7L EcoBoost Engine Powertrain Control Module \(PCM\) Reprogramming
- [TSB 24\-2184](/bulletins/11001582.md), 2024-06-12, Service bulletin: POWER TRAIN. This article supersedes TSB 24\-2115 to update the Service Procedure. Some 2018\-2020 F\-150 vehicles equipped with a 2.7L EcoBoost may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble codes \(DTCs\) P0420 and/or P0430 stored in the powertrain control module \(PCM\). This may be due to calibration and controls sensitivity. To correct the condition, follow the Service Procedure to perform the catalyst stabilization drive cycle.

JSON: [/v1/bulletins/10159501](/v1/bulletins/10159501)

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