Mazda B-Series Truck 1991–1999 — technical service bulletin
Bulletin 01298 · NHTSA communication 602676 · issued Nov 4, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1991–1999
model years
10
vehicle entries
Official summary
Experiencing a buzzing or rattling noise may be heard coming from the exhaust system during normal driving conditions or at idle. *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.