Ford Expedition 1998 — technical service bulletin
Bulletin 00123 · NHTSA communication 613859 · issued Jun 12, 2000
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998
model years
4
vehicle entries
Official summary
Some vehicles may experience spark knock during light-to-moderate accelerations. *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.