Ford F-150 2011–2012 — technical service bulletin
Bulletin TSB-14-0156 · NHTSA communication 10056696 · issued Aug 27, 2014
Technical service bulletin
communication type
Engine
component
2011–2012
model years
4
vehicle entries
Official summary
Ford: in front of left hand (lh) on driver side cylinder head, an intermittent noise of metallic rattle or scratching, is heard when vehicle is idle and engine at operating temperature. Model 2011-12 f-150, mustang. *pe
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.