Ford Windstar 1995–1998 — technical service bulletin
Bulletin 982677 · NHTSA communication 603575 · issued Apr 1, 1998
Technical service bulletin
communication type
Visibility
component
1995–1998
model years
4
vehicle entries
Official summary
Some vehicles may exhibit a high pitch whistle from the heater core housing case. *yc
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.