Ford Explorer 1998–1999 — technical service bulletin
Bulletin 5506 · NHTSA communication 605189 · issued Mar 1, 1999
Technical service bulletin
communication type
Power Train
component
1998–1999
model years
4
vehicle entries
Official summary
Vehicle may exhibit a high pitched squeal / whistle type noise from the front end at speeds from 10 mph to 40 mph. *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.