Nissan Frontier 1999–2002 — technical service bulletin
Bulletin NTB02020 · NHTSA communication 629507 · issued Feb 18, 2002
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2002
model years
7
vehicle entries
Official summary
Subject regarding knocking noise above idle (800-1100 rpm). *yd
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.