Ford Expedition 1997 — technical service bulletin
Bulletin 01166 · NHTSA communication 624099 · issued Aug 20, 2001
Technical service bulletin
communication type
Power Train
component
1997
model years
3
vehicle entries
Official summary
Some vehicles may exhibit water in the transfer case, this could cause low range 4x4 lamp to illuminate, short of transfer case switch, or windshield wipers to be erratic or inoperative. *slc
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.