Lincoln Town Car 1998 — technical service bulletin
Bulletin 985021 · NHTSA communication 613047 · issued Nov 1, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998
model years
1
vehicle entries
Official summary
Some vehicles with calibrations of 8-18j and 8-18e (all r levels) may exhibit a concern of spark knock / ping / detonation under acceleratioin at low engine speeds when the engine is at normal operating temperature. *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.