Nissan Altima 2002–2003 — technical service bulletin
Bulletin 02037A · NHTSA communication 10000399 · issued Nov 6, 2002
Technical service bulletin
communication type
Engine and Engine Cooling
component
2002–2003
model years
2
vehicle entries
Official summary
Buzz noise from engine compartment area at 2500-2700 rpm, moderate load. *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.