Nissan Frontier 1998–2000 — technical service bulletin
Bulletin NTB99070 · NHTSA communication 609968 · issued Oct 5, 1999
Technical service bulletin
communication type
Equipment
component
1998–2000
model years
4
vehicle entries
Official summary
Subject regarding vehicles exhibiting an air conditioner idler pulley whine noise at 3,000 engine rpm. *tt
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.