Service bulletin SSM 46921
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 | 10127414 |
| Published by NHTSA | 2018-01-29 |
| Manufacturer's number | SSM 46921 |
| Manufacturer's date | 2017-11-14 |
| NHTSA component | FUEL SYSTEM, DIESEL; POWER TRAIN |
NHTSA's summary
Some 2017 F-Super Duty vehicles with 6.7L diesel engines may exhibit a fuel knock type noise at idle with various cylinder contribution/balance DTCs and/or Fuel Injector Offset Learn DTCs. To resolve this issue please use the following procedure: 1) Make sure ECT1 and EOT are above 176Å?F (80Å?C). 2) Using the IDS or FJDS, run the Manual Injector Balance Test/Enhanced Power Balance Test under Toolbox, Powertrain, Power Balance. If the noise is gone after running the Enhanced Power Balance test, then clear the High Pressure Side Minimum Fuel Mass Adaptation tables for all cylinders, and the Crankshaft Position Sensor under Toolbox, Powertrain, Service Functions, Reset, Clear Specified Function. Do not attempt any repairs at this time. Engineering is investigating, monitor OASIS for updates.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Fuel system, Transmission and driveline
| FORD F-150 | 2017 |
|---|---|
| FORD F-250 SD | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| FORD F-350 SD | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| FORD F-450 SD | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| FORD F-550 SD | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| FORD F-650 SD | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| FORD F-750 SD | 2017 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2026189 | 2026-04-15. Powertrain |
|---|---|
| 26V237000 | 2026-04-14. POWER TRAIN:AUTOMATIC TRANSMISSION |
| 2022679 | 2022-11-29. Powertrain |
| 22V880000 | 2022-11-29. POWER TRAIN:DRIVELINE:DRIVESHAFT |
| 2022074 | 2022-02-17. Powertrain |
| 22V087000 | 2022-02-16. STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS; POWER TRAIN:DRIVELINE:DRIVESHAFT |
| 2018165 | 2018-04-05. Powertrain |
| 2018164 | 2018-04-05. Powertrain |
| 18V213000 | 2018-04-04. POWER TRAIN:AUTOMATIC TRANSMISSION |
| 2017519 | 2017-10-25. Powertrain |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 26N04 | 2026-08-03. Other. Customer Satisfaction Program 26N04 Certain 2015-2017 Model Year F-150 Vehicles Equipped with a 6R80 Transmission Transmission Molded Leadframe Replacement |
|---|---|
| 25N10 | 2026-03-05. Other. Certain 2017-2025 F-450 – F-600 Super Duty Chassis Cab Upfitted with an Aerial Bucket Frame Rail Crack |
| SSM 54592 | 2026-02-27. Service bulletin. 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. |
| SSM 54366 | 2025-11-19. Service bulletin. 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 | 2025-11-04. Service bulletin. 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 | 2025-08-19. Service bulletin. 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 |
| SSM 52548 | 2024-05-23. Service bulletin. Various vehicles equiped with 10R80/10R80 MHT/10R100/10R140 transmissions may require replacement of the seal kits (7153) when internal repairs are being performed. These kits come with 4 wheel drive (4WD) seals and will no longer include the 2WD seals. When working on a 2WD vehicle, any 2WD seals must be ordered separately. Refer to the parts catalog for the proper 2WD seals required. |
| TSB 24-2101 | 2024-04-04. Service bulletin. This article supersedes TSB 24-2046 to update the Service Procedure LTIS statement. Some 2017-2020 F-150, 2018-2021 Expedition/Navigator/Mustang, 2019-2023 Ranger vehicles equipped with a 10R80 transmission may exhibit a harsh/delayed engagement and/or harsh/delayed shift, an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) that are stored in the powertrain control module (PCM) or transmission control module (TCM). This may be due to the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve. |
| SSM 52314 | 2024-03-20. Service bulletin. During service and repair requiring removal and replacement of a crankshaft bolt and/or crankshaft damper, achieving proper torque of the crankshaft pulley bolt is critical. Incorrect torque may allow the bolt to loosen resulting in the timing gear breaking and engine damage. Replacement of the bolt is critical to the repair and accurately following the installation procedure in the Workshop Manual (WSM) Section, 303-01 is extremely important. The bolt torque procedure can be found in the crankshaft front seal removal and installation procedure or in the engine assembly procedure. |
| TSB 24-2046 | 2024-03-07. Service bulletin. This article supersedes TSB 23-2350 to update the Issue statement and the Service Procedure. Some 2017-2020 F-150, 2018-2021 Expedition/Navigator/Mustang, 2019-2023 Ranger vehicles equipped with a 10R80 transmission may exhibit a harsh/delayed engagement and/or harsh/delayed shift, an 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 the transmission solenoid ID strategy, sticking valves in the main control valve body and/or axial movement of the CDF clutch cylinder (7H351) sleeve. |