Some 2021-2022 F-Super Duty/F-650/F-750 vehicles equipped with a 6.7L engine and built on or after...
Ford technical service bulletin TSB 21-2257 for 2021-2022 Ford F-250 SD, 2021-2022 Ford F-350 SD and 2021-2022 Ford F-550 SD and others.
- Bulletin number
- TSB 21-2257
- Component
- Engine and engine cooling
- Summary
- Some 2021-2022 F-Super Duty/F-650/F-750 vehicles equipped with a 6.7L engine and built on or after 15-Apr-2021, with less than 300 miles (483 km), may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P20E8 and/or P208B stored in the powertrain control module (PCM). This may be due the reductant pump and heater assembly losing prime during extended vehicle storage. To correct the condition, follow the Service Procedure to prime the reductant pump and heater assembly.
Owners of these vehicles have filed 81 complaints in the engine category.
Vehicles covered
- Ford F-250 SD 2021-2022 20212022
- Ford F-350 SD 2021-2022 20212022
- Ford F-550 SD 2021-2022 20212022
- Ford F-450 SD 2021-2022 20212022
- Ford F-650 SD 2021-2022 20212022
- Ford F-750 SD 2021-2022 20212022
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