Ford Expedition 1997–1998 — technical service bulletin
Bulletin 985059 · NHTSA communication 613196 · issued Nov 1, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997–1998
model years
8
vehicle entries
Official summary
Experiencing cold engine knock (repeat / revised message). *tt
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.