Nissan Altima 1993–1998 — technical service bulletin
Bulletin NTB98055 · NHTSA communication 603251 · issued Jul 15, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1993–1998
model years
6
vehicle entries
Official summary
Some vehicles built before 1n4dl01d0wc150648 may exhibit excessive timing chain noise. *yc
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.