Ford F-250 SD 2011–2014 — technical service bulletin
Bulletin ASI-44402 · NHTSA communication 10055589 · issued Feb 1, 2014
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2014
model years
23
vehicle entries
Official summary
Ford: urea crystals are forming in diesel exhaust fluid (def) injector nozzle due to selective crystal reduction (scr) dosing of rk7 measurement test and may need to reinstall if zero or below specified 45-55ml. Model 2011-2014 f-super duty.
Vehicles covered
- 2011 Ford F-250 SD
- 2012 Ford F-250 SD
- 2013 Ford F-250 SD
- 2014 Ford F-250 SD
- 2011 Ford F-350 SD
- 2012 Ford F-350 SD
- 2013 Ford F-350 SD
- 2014 Ford F-350 SD
- 2011 Ford F-450 SD
- 2012 Ford F-450 SD
- 2013 Ford F-450 SD
- 2014 Ford F-450 SD
- 2012 Ford F-550 SD
- 2013 Ford F-550 SD
- 2014 Ford F-550 SD
- 2011 Ford F-650 SD
- 2012 Ford F-650 SD
- 2013 Ford F-650 SD
- 2014 Ford F-650 SD
- 2011 Ford F-750 SD
- 2012 Ford F-750 SD
- 2013 Ford F-750 SD
- 2014 Ford F-750 SD
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.