Ford F-250 SD 1999 — technical service bulletin
Bulletin 6900 · NHTSA communication 6090205 · issued Sep 1, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999
model years
4
vehicle entries
Official summary
Some vehicles built prior to 4/1/1999 may exhibit turbocharger noise, exhaust noise, or oil / soot presence on rear of engine or turocharger. *tt
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.