Ford Aerostar 1991–1997 — technical service bulletin
Bulletin BC1019997230 · NHTSA communication 51559 · issued Jan 23, 1997
Technical service bulletin
communication type
Engine and Engine Cooling
component
1991–1997
model years
21
vehicle entries
Official summary
4.0l equipped vehicles may experience temperature gauge fluctuation that may be accompnied with a thumping noise or feel in the coolant hoses with the engine at normal operating temperature. *jd
Vehicles covered
- 1991 Ford Aerostar
- 1992 Ford Aerostar
- 1993 Ford Aerostar
- 1994 Ford Aerostar
- 1995 Ford Aerostar
- 1996 Ford Aerostar
- 1997 Ford Aerostar
- 1991 Ford Explorer
- 1992 Ford Explorer
- 1993 Ford Explorer
- 1994 Ford Explorer
- 1995 Ford Explorer
- 1996 Ford Explorer
- 1997 Ford Explorer
- 1991 Ford Ranger
- 1992 Ford Ranger
- 1993 Ford Ranger
- 1994 Ford Ranger
- 1995 Ford Ranger
- 1996 Ford Ranger
- 1997 Ford Ranger
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.