Ford Expedition 1999 — technical service bulletin
Bulletin 12112 · NHTSA communication 613100 · issued Nov 1, 1998
Technical service bulletin
communication type
Power Train
component
1999
model years
4
vehicle entries
Official summary
Some vehicles with the 5.4 l engine may exhibit difficulty engaging into and out of 4 x 4 low, while cold. *mjs
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.