Ford F-150 2009–2010 — technical service bulletin
Bulletin AS-21578 · NHTSA communication 10039138 · issued Nov 1, 2010
Technical service bulletin
communication type
Power Train
component
2009–2010
model years
2
vehicle entries
Official summary
Ford: there is a rattle noise when driving 25-30 mph from the transmission when under load. 2009-2010 f-150. *rm
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.