Ford Expedition 1997 — technical service bulletin
Bulletin BC1011097020 · NHTSA communication 51174 · issued Jan 2, 1997
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997
model years
2
vehicle entries
Official summary
Overheating on 4.6/5.4l vehicles may be caused by possible water pump concern due to free spinning water pump impeller.
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.