# Service bulletin TSB 21\-2309

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: 10201645
- Published by NHTSA: 2021\-09\-30
- Manufacturer's number: TSB 21\-2309
- Manufacturer's date: 2021\-09\-14
- NHTSA component: FUEL SYSTEM, GASOLINE

## NHTSA's summary

Some 2020\-2021 F\-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp \(MIL\) with various fuel system related diagnostic trouble codes \(DTC\) stored in the powertrain control module \(PCM\). While performing pinpoint test \(PPT\) M in the Powertrain Control/Emissions Diagnosis \(PC/ED\) Manual, the fuel pressure control valve \(F\_PCV\) and/or fuel volume control valve \(F\_VCV\) parameter identifications \(PIDs\) may not have an option to manually command them with the Ford Diagnosis and Repair System \(FDRS\) scan tool. This may be due to the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201645-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10201645-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- 2020 to 2021 FORD F\-250 SD
- 2020 to 2021 FORD F\-350 SD
- 2020 to 2021 FORD F\-450 SD
- 2020 to 2021 FORD F\-550 SD

## Recalls for the same vehicles and component

- [2026122](/recalls/tc/2026122.md), 2026-03-17: Fuel System
- [26V158000](/recalls/nhtsa/26V158000.md), 2026-03-17: FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP
- [2025366](/recalls/tc/2025366.md), 2025-07-08: Fuel System
- [25V455000](/recalls/nhtsa/25V455000.md), 2025-07-07: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [2024780](/recalls/tc/2024780.md), 2024-12-20: Fuel System
- [24V957000](/recalls/nhtsa/24V957000.md), 2024-12-20: FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP
- [2022009](/recalls/tc/2022009.md), 2022-01-17: Fuel System
- [22V013000](/recalls/nhtsa/22V013000.md), 2022-01-14: FUEL SYSTEM, DIESEL

## Other bulletins for the same vehicles and component

- [SSM 54215](/bulletins/11023203.md), 2025-09-18, Service bulletin: FUEL/PROPULSION SYSTEM. Some 2019\-2026 F\-Super Duty vehicles equipped with a 6.7L engine may require various repairs and/or maintenance to the fuel system where quick release couplings are utilized, such as the secondary fuel filter. The Workshop Manual \(WSM\), Section 310\-00 \> General Procedures \> Quick Release Coupling has been updated to include videos and instructions of proper disconnect/connect steps involving the Type 27 quick release couplings.
- [SSM 52765](/bulletins/11005994.md), 2024-08-06, Service bulletin: FUEL/PROPULSION SYSTEM. Some 2020\-2022 F\-Super Duty pickup vehicles equipped with a 6.7L engine, 175 inch wheelbase, and built on or before 23\-Sep\-2021 may exhibit a thump/whine/knock noise from the midship fuel tank at idle or during key on, engine off \(KOEO\) after performing TSB 21\-2057. The noise may be more pronounced at fuel levels at or below 1/4 tank. This may be due to the fuel pump
- [SSM 50977](/bulletins/10216961.md), 2022-08-02, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); EQUIPMENT; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Some 2021\-2022 F\-Super Duty and 2021\-2023 E\-Series vehicles equipped with a 6.2L or 7.3L gasoline engine may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P0457 stored in the powertrain control module \(PCM\). This may be due to a loose fuel filler cap. The fuel filler cap design has changed, requiring multiple turns to seal properly. Advise the customer to turn the fuel filler cap clockwise until there is at least one audible click to seal properly. For further diagnostics, refer to Workshop Manual \(WSM\), Section 303\-13 \- pinpoint test HX.
- [SSM 50619](/bulletins/10209223.md), 2022-03-22, Service bulletin: FUEL SYSTEM, GASOLINE. Some 2020\-2022 F\-Super Duty pickup vehicles equipped with a 6.7L engine and built on or before 23\-Sep\-2021 may exhibit a thump/whine/knock noise from the fuel tank at idle or during key on, engine off \(KOEO\) after performing TSB 21\-2057. The noise may be more pronounced at fuel levels at or below 1/4 tank. This may be due to the fuel pump. To correct the condition, replace the fuel pump and sender assembly with service part HC3Z\-9H307\-AR for vehicles with 160/164 inch wheelbase and a midship fuel tank, HC3Z\-9H307\-AQ for vehicles with 142/148 inch wheelbase and a midship fuel tank, and HC3Z\-9H307\-AS for vehicles with an aft of axle fuel tank. For claiming, use causal part 9H307 and applicable labor operations in Section 08 of the Service Labor Time Standards \(SLTS\) Manual.
- [SSM 50448](/bulletins/10207140.md), 2022-02-04, Service bulletin: FUEL SYSTEM, DIESEL; POWER TRAIN; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Some 2017\-2022 F\-Super\-Duty vehicles equipped with a 6.7L diesel engine may exhibit a hard start, lack of power and/or runs rough concern with an illuminated malfunction indicator light \(MIL\) and diagnostic trouble codes \(DTCs\) P0087 and/or P008A. This may be due to low fuel level or fuel gelling in cold ambient temperatures. If no root cause is determined after normal Powertrain Control/Emissions Diagnosis \(PC/ED\) pinpoint test MA, recommend that the customer use a different brand of fuel and use Motorcraft® PM\-23\-A Diesel Fuel Anti\-Gel and Performance Improver. Inform the customer that bio\-diesel blended fuels have a higher occurrence of fuel gelling. Fuel gelling and or low fuel conditions causing a P0087 and/or P008A is not covered under warranty.
- [SSM 50380](/bulletins/10207050.md), 2022-02-04, Service bulletin: FUEL SYSTEM, GASOLINE. Some 2020\-2022 F\-Super Duty pickup vehicles equipped with a 6.7L engine, 175 inch wheelbase, and built on or before 23\-Sep\-2021 may exhibit a thump/whine/knock noise from the midship fuel tank at idle or during key on, engine off \(KOEO\) after performing TSB 21\-2057. The noise may be more pronounced at fuel levels at or below 1/4 tank. This may be due to the fuel pump. To correct the condition, replace the fuel pump and sender assembly with service part HC3Z\-9H307\-AP. For claiming, use causal part 9H307 and applicable labor operations in Section 08 of the Service Labor Time Standards \(SLTS\) Manual.
- [SSM 49785](/bulletins/10194412.md), 2021-06-01, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. Some 2021 F\-Super Duty and 2021\-2022 E\-Series vehicles equipped with a 6.2L or 7.3L gasoline engine may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P0457 stored in the powertrain control module \(PCM\). This may be due to a loose fuel filler cap. The fuel filler cap design has changed, requiring multiple turns to seal properly. Advise the customer to turn the fuel filler cap clockwise until there is at least one audible click to seal properly. For further diagnostics, refer to the Powertrain Control/Emissions Diagnosis \(PC/ED\) manual, pinpoint test HX.
- [SSM 49778](/bulletins/10194388.md), 2021-06-01, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. Some 2021 F\-Super Duty/F\-650/F\-750 and 2021\-2022 E\-Series vehicles equipped with a 6.2L or 7.3L gasoline engine may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P0457 stored in the powertrain control module \(PCM\). This may be due to a loose fuel filler cap. The fuel filler cap design changed for 2021 to require three full turns to properly tighten. Advise the customer of the design change. For further diagnostics, refer to the Powertrain Control/Emissions Diagnosis \(PC/ED\) manual, pinpoint test HX.
- [TSB 21\-2058](/bulletins/10189777.md), 2021-04-03, Service bulletin: FUEL SYSTEM, GASOLINE. Some 2020\-2021 F\-Super Duty vehicles equipped with a 6.7L engine built on or before 10\-Feb\-2021 may exhibit an illuminated malfunction indicator lamp \(MIL\) with various fuel system related diagnostic trouble codes \(DTCs\) stored in the powertrain control module \(PCM\). While performing pinpoint test \(PPT\) M in the Powertrain Control/Emissions Diagnosis \(PC/ED\) Manual, the fuel pressure control valve \(F\_PCV\) and/or fuel volume control valve \(F\_VCV\) parameter identifications \(PIDs\) may not have an option to manually command them with the scan tool. This may be due to the PCM software. To correct the condition, follow the Service Procedure to reprogram the PCM.
- [TSB 21\-2057](/bulletins/10189776.md), 2021-04-03, Service bulletin: FUEL SYSTEM, GASOLINE. Some 2020\-2021 F\-Super Duty vehicles equipped with a 6.7L engine built on or before 10\-Feb\-2021 may exhibit a thump/whine/knock noise from the fuel tank at idle or during key on, engine off \(KOEO\). The noise may be more pronounced at fuel levels at or below 1/4 tank. This may be due to the fuel pump strategy in the powertrain control module \(PCM\) software. To correct the condition, follow the Service Procedure to reprogram the PCM.

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