Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to...

Bulletin number

SSM 50342

Component

Engine and engine cooling

Summary

Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to snow packing of the engine air cleaner when operating in extremely snowy conditions. Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). A heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA) is now available for use but is not a warrantable item. It is recommended that the service kit be removed at temperatures greater than 50°F (10°C) and reinstall in subsequent winter seasons in order to maintain optimal vehicle performance.

Owners of these vehicles have filed 127 complaints in the engine category.