Ford F-250 SD 2011–2014 — technical service bulletin
Bulletin 21M04 · NHTSA communication 10211955 · issued May 17, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2014
model years
16
vehicle entries
Official summary
Certain 2011-2014 Model Year Super Duty Vehicles Equipped with a 6.7L Diesel Engine Exhaust Gas Recirculation Cooler with Diagnostic Trouble Codes P0401 and/or P2457 - In some of the affected vehicles, customers may experience an illuminated malfunction indicator light due to the EGR cooler becoming plugged with hydrocarbon or soot at high mileage. Diagnostic trouble codes (DTCâ  s) for EGR cooler efficiency below threshold (DTC P0401) and/or insufficient EGR flow at idle (DTC P2457) are stored when the malfunction indicator light is illuminated.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.