Some 2021 F-Super Duty/F-650/F-750 and 2021-2022 E-Series vehicles equipped with a 6.2L or 7.3L gasoline...
Ford technical service bulletin SSM 49778 for 2021 Ford F-250 SD, 2021 Ford F-350 SD and 2021-2022 Ford E-350 and others.
- Bulletin number
- SSM 49778
- Component
- Fuel system, gasoline: storage: tank assembly: filler pipe and cap
- Summary
- 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.
Vehicles covered
- Ford F-250 SD 2021 2021
- Ford F-350 SD 2021 2021
- Ford E-350 2021-2022 20212022
- Ford E-150 2021-2022 20212022
- Ford F-550 SD 2021 2021
- Ford F-450 SD 2021 2021
- Ford E-450 2021-2022 20212022
- Ford E-250 2021-2022 20212022
- Ford F-650 SD 2021 2021
- Ford F-600 SD 2021 2021
- Ford F-750 SD 2021 2021
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