Ford Explorer 1997 — technical service bulletin
Bulletin BC3134970221 · NHTSA communication 51731 · issued Feb 21, 1997
Technical service bulletin
communication type
Electrical System
component
1997
model years
1
vehicle entries
Official summary
Oem spark plugs may exhibit a concern of an open circuit caused by an internal crack. *tw
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.