Ford F-250 SD 2014–2015 — technical service bulletin
Bulletin ASI-44556 · NHTSA communication 10056208 · issued May 1, 2014
Technical service bulletin
communication type
Power Train
component
2014–2015
model years
4
vehicle entries
Official summary
Ford: squealing can be heard when driving 35-55 mph, after cold soak start up. Model 2014-2015 f-250, 350. *pe
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.