Ford F-250 SD 2011 — technical service bulletin
Bulletin AS-21457 · NHTSA communication 10039146 · issued Aug 1, 2010
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011
model years
4
vehicle entries
Official summary
Ford: there may be an oil leak from the turbocharger supply line. 2011 vehicles.*rm
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.