Ford Explorer 1997–1999 — technical service bulletin
Bulletin 13527 · NHTSA communication 610913 · issued Nov 1, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997–1999
model years
6
vehicle entries
Official summary
Some vehicles equipped with 4.0l sohc engines may exhibit an overheat condition that may be attributed to the thermostat. Engineering is currently investigating this issue and is looking for thermostats and coolants samples from these vehicles. *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.