Ford F-250 SD 1999 — technical service bulletin
Bulletin 12752 · NHTSA communication 6091723 · issued May 1, 1999
Technical service bulletin
communication type
Power Train
component
1999
model years
4
vehicle entries
Official summary
Some vehicles eqipped with ;7.3l diesel engines and 4r100 transmissions may exhibit a no 3-4 upshift condition or 3-4 / 4-3 shift busyness when using cruise control. *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.